13 best radiator leaks

Product description

Bar's Leaks Liquid Aluminum Stop Leak seals radiator leaks. Seals freeze plug leaks. Repairs gasket leaks and heater core leaks. Lowers water temperature.

• Bar's Leaks Liquid Aluminum Stop Leak seals radiator leaks. Seals freeze plug leaks. Repairs gasket leaks and heater core leaks. Lowers water temperature.
• Seals radiator leaks
• Seals freeze plug leaks
• Repairs gasket leaks
• Special Shipping Information: This item cannot be returned and has additional shipping restrictions

User questions & answers

Question:	Do I need to flush the cooling system before using this product if I had used bar’s tablet? I am choosing between these two since the leak is small
Answer:	You do not have to flush the system, in fact you may flush it after to put in the Bars Leak and run for a couple hundred miles to make sure your leak is sealed.
Question:	will this work on the head also
Answer:	Try it...it's inexpensive. Whether it works depends on the specifics of your problem. I tried it on a 4 cylinder BMW with a new head and profile gasket and a slow leak. It worked great.
Question:	can it be used in a Tahoe plastic tank
Answer:	i used it in my volvo which has a plastic expansion tank and no problems. it won't fix big leaks but if you're losing just a little coolant over time and can't find the leak this is the stuff to use!
Question:	My radiator leaking from the seam. Slightly overheating. Will this seal at the seam
Answer:	It should,depending on how big the leak/crack is,the one on my semi truck was dripping big,half a gallon a day,I was worried bc that s a $2,000.00 repair,I bought it not expecting any results,since I had previously used Bars leak (the small silver bottle) and didn t work,so this was a prayer and a last hope, 5,000 mls later and not a leak,not extra coolant added,it is liquid aluminum,so it bonds to wherever the leak is and forms a sealing coat...I think of it as welding from the inside...I hope it works for you as it did for me,it really was an answer to prayer...I know I m a bit dramatic but it was.PS,try to follow recommended amount or as close as recommended,not much less and not much more,I used 2 bottles on a 11 gal radiator.God bless.

Product features

Frequently Asked Questions

Yes, Liquid Aluminum is specifically designed to be directly added to the cooling system without having to flush out the antifreeze. It also can be used in water alone. But if using in water, it is recommended that another bottle of Liquid Aluminum be added to the system once antifreeze is installed.

Will it work in the new extended life antifreeze?

Yes, Liquid Aluminum works with all types of coolant including yellow, orange, pink, red, blue and green silicate based and non-silicate based OAT/HOAT antifreeze and/or water.

How long does it take to see results?

We recommend you drive/idle the vehicle for 10 to 20 minutes. In most cases the leak will be sealed instantly, but others will require up to 20 minutes. If the leak is not sealed in 20 minutes, a second application may be required or mechanical repair may be needed.

Bar’s Leaks is more than just a stop-leak company

We are a team of enthusiasts and experts who create memorable experiences with each and every one of our customers. With nearly 70 years of experience in helping everyday automobile owners repair leaks, we have the track record of success and long history that demonstrates our commitment and passion to helping drivers of all experience levels. You’ll see that our passion shines through in everything we do.

Product description

K-Seal 8 fluid ounce bottle is effective to 20 quarts cooling capacity. Just shake, pour and go. It repairs leaks and cracks in radiator, head gasket, heater core, freeze plugs, water pump casing, cylinder heads and engine blocks.

• REPAIRS IN MINUTES: Formulated to permanently weld radiators, including hard plastic aluminum heads and blocks in old and new cars. The only car radiator and gasket sealant university tested to meet ASTM D3147. Save time/money. US Bestseller
• SEALS CRACKS AND STOPS LEAKS: A DIY alternative to costly repairs, our coolant leak fix permanently seals cracks and holes! It quickly repairs your leaking radiator, freeze plug, heater core and water pump casing with no adverse impact on efficiency.
• POUR AND GO: Our cooling system sealer is easy to use: just shake the bottle, add to your radiator/overflow and run the engine! Unlike some traditional products, it mixes with all types of antifreeze, absolutely no draining or flushing required.
• SCIENTIFICALLY TESTED: Safe and effective, our cracked block repair can seal leaks up to 1/32 of an inch! Once cured, the repair withstands the high pressure of the combustion chamber, all without failing or clogging the cooling system.
• CUSTOMER SUPPORT: If K-Seal engine coolant leak stop doesn’t seal, the system might be over-pressurized. Check the Technical Specification section of this page for extra instructions for a successful repair. Over 8 million bottles sold worldwide!

User questions & answers

Question:	can you mix this with barstop if you all ready put that in the radiator
Answer:	I did mix this with Irontite All Weather Seal. Did the K-seal first. Irontite a week later. Just to be sure. Since they both said it can remain in the system. Two weeks, still good.
Question:	Can you use this in a 2013 escape
Answer:	Unless specifically told to use no heating system sealants I have no reason I can think of you can't use it. I used some but sparingly until it got the job done. Its a little bottle but still have half left. It's been okay for about 6 months now.
Question:	Does it discolor the antifreeze? Thanks
Answer:	Unfortunately I can't say. I have a GM vehicle that uses the orangish color engine coolant and it and this product are so close in color it's hard to say if it would discolor the usual green-colored coolant found in non-GM vehicles. The other challenge is that I can only look at the coolant through an overflow reservoir and it's so dark when I look inside (I have to use an LED flashlight to see it adequately) that it would be hard to tell if there was any discoloration.
Question:	will this work for leakey gaskets
Answer:	This is "liquid glass" that dries rock hard and will seal your head gasket leak (its been used in farm equipment for over 75 years and is WELL proven to work, and it was discovered over a hundred years ago), but you MUST perform a simple test. Start your vehicle, let it idle for 45 minutes straight. If the temperature gauge does not indicate that your engine is overheating, then this product will most likely work. No overheating at an idle for 45 minutes MEANS that the head gasket leak is still small enough to be filled by this liquid glass. Shake the container for 30 seconds, put the liquid in your COOLANT system, drive for an hour (or other words, operate at normal temperature, especially if its an aluminum block with cast iron heads), and then let it sit for 24-48 hours (the longest time is better). This sitting time allows the liquid glass to harden completely through. If it overheats then, it most likely its a thermostat or water pump or lower radiator hose sucking shut under load (sometimes the upper one also) or radiator or radiator fan or leaking core plug or leaking coolant storage unit OR your ENGINE OIL is very low from leaking (completely different problem that has nothing to do with the coolant system, but much to do with the cooling of the engine also) or heat indicator gauge or it still could be a blown head gasket, because the hole is just too big for the sealant to seal it up OR the head gasket BLOWS in another area after you have sealed up the first hole with the coolant sealant you added (that's why you should add it three times three different bottles of liquid glass over three months as I will mention below, that way, if it does blow in another area you will most likely SEAL that area also). But buy this and try it even if your vehicle fails the 45 minute test after 10 minutes. Sometimes, it will still seal the leak, or at least slow it down. Also, you can add this once a month for three months, and maybe that will work also (this gives you a month to see how the car performs under various conditions, and for the reason I just mentioned above). If you need the car to last for just a short while (month to six months) this can be a quick fix to hold you over until you can sell the car (under buyer be where conditions) or get it to the shop when you have the money. $15 and a few minutes of your time OR the mechanic, you have to decide. Good luck. I'm a retired mechanic with two degrees in Diesel mechanics and I ran a shop for a year.... :)

Product features

Permanent Coolant Leak Repair with K-Seal

Coolant leaks don’t have to result in costly repair bills – simply add K-Seal to your coolant system for a quick and permanent fix. K-Seal is trusted by millions of customers worldwide, and the only coolant leak repair fluid carried by the AA, the UK’s largest roadside repair company.

K-Seal couldn’t be simpler to use. K-Seal’s unique formula will seek out holes and cracks, and permanently seal them, with no adverse impact on the efficiency of your engine cooling.

Coolant System Sealer

Once the crack or hole has been located, the microfibers instantly begin to mesh together within the gap, building a seal literally fiber by fiber to stop the coolant leaking through the gap.

The particles in our K-Seal products are very precisely designed to be large enough to repair holes up to 0.635mm in size but deliberately small enough to never block any passageways or tubes within the cooling system, including those inside the heater core and radiator.

Once the microfibers have sealed and fixed the leak, a combination of exposure to either the external atmosphere or the gases within the combustion chamber and the heat within the cooling system and engine causes the K-Seal formula to cure. This results in an extremely strong and permanent seal able to withstand even the high pressures from the combustion chamber. This is how K-Seal Ultimate is able to repair head gasket failures, even where the cooling system is being over-pressurized exhaust gases entering the system

Common Coolant Leaks

K-Seal can deal with all of these leaks and more, as long as they are identified as early as possible. It is easy to use – simply shake it and pour it into the coolant mixture and it will work automatically.

Product description

It’s part of life: older cars, trucks, vans, SUVs and even RVs can develop larger leaks in their radiators and intake manifolds. If you’ve tried regular stop leak products, you know they are not powerful enough to stop these larger leaks. If you visit the service center down the street, you know just how expensive it can be to repair an intake gasket leak through a mechanic. Isn’t there a better way? There should be, which is why Bar’s Leaks designed the Liquid Copper Block Seal Intake & Radiator Stop Leak. This one-step sealer was designed to quickly and safely stop these overwhelming leaks. When you’re experiencing a mild to moderate intake gasket seal leak, discover the fast, effective, inexpensive power of liquid copper. What does it do? Our formula permanently repairs larger leaks in radiators, intake manifolds and gaskets, heater cores, blocks, heads and freeze plugs. It contains an antifreeze-compatible sodium silicate liquid glass formula, so no draining of the cooling system is required. Not to mention, it will not harm the cooling system when used properly. The intake gasket seal you’ve been looking for is far more effective, easy to use, and less expensive than you’ve ever imagined. This is why Bar’s Leaks exists: To offer imminently usable, low-cost intake gasket seal and other products to auto owners who have no special experience or expertise. You’ll find plenty of options when searching for products to fix an intake gasket leak. While our competition may claim to stop the leak quickly, their products don’t always perform as advertised and they sometimes make things worse. Their stop leak products can’t get your car back on the road like Bar’s Leaks — that’s why we’ve been the most trusted stop leak brand since 1947. Throughout our long history of serving car owners like you, we’ve used a team of dedicated chemical engineers to constantly develop and refine products that are safe, fast and effective in stopping intake gasket leaks and other automotive problems — including liquid copper and much more. Make sure to watch Bobby and Caitlin in our handy how-to video so you can become a “three-minute mechanic” and finally take control of that leak.

• Seals larger leaks seals
• Repairs heater core leaks
• Repairs freeze plug leaks
• Repairs blown head gaskets
• Repairs blocks

User questions & answers

Question:	Can i use this product to stop leak on my honda element 2003 engine block? the engine block has a small leak
Answer:	Thank you for your question and for considering Bar's Leaks Liquid Copper Block Seal Intake & Radiator Stop Leak (part number 1109). This one step formula was developed to repair larger leaks in radiators, intake manifolds & gaskets, heater cores, blocks, heads and freeze plugs, so it should help you with a small leak in your Honda Element. Please note, though, that cooling systems that are dirty or partially clogged should be flushed before using. If you haven't had a chemical cooling system flush performed on your vehicle in the last four years, you might consider doing so now. Flushing with water will remove any loose sediment in the cooling system, but if there is any scale built up, it would take a chemical flush to dissolve and remove it, giving our product the best possible chance to stop the leak. If you have any questions, or we can be of further assistance, please feel free to contact our Tech Support team at 1-800-345-6572. We are here to assist you Monday through Friday, from 8 am to 5 pm, Eastern time.
Question:	Can this help with a 5.3l gm engine with the bad cylinder head castings? i'm saving for a replacement engine, just need this one to last a while
Answer:	Thanks for your question, and for considering Bar's Leaks to help with your vehicle's needs. The product you are asking about - Bar's Leaks Block Seal Intake & Radiator Stop Leak is a great product for repairing larger leaks in radiators, intake manifolds & gaskets, heater cores, blocks, heads and freeze plugs. However, if your vehicle is showing signs of head gasket failure due to the bad castings you refer to, we would suggest one of our head gasket products, such as Head Gasket Fix (part number 1111), which is very successful in sealing leaks as long as your vehicle can run 20 minutes or longer without overheating or needing to add coolant. If your vehicle is unable to run for 20 minutes without overheating, but can run for at least 15 minutes, we recommend our strongest head gasket stop leak - Head Seal Blown Head Gasket Repair (part number HG-1). For best results, these products should be installed into a clean cooling system, following the installation instructions and proper dosage. If you are unsure how clean your cooling system is, or you haven't had it chemically flushed in the last three to four years, we recommend doing so before installing any stop leak products. If you have any other questions, or we can be of further assistance, please feel free to call our Tech Support team at 1-800-345-6572. We are here to assist you Monday through Friday, from 8 am to 5 pm, Eastern time.
Question:	heater core leak fixed
Answer:	The label on the lower right does show Heater Core. So this could work since coolant is being pumped through the heater core to heat the cabin of a vehicle.
Question:	Will this help to stop a block leak where the water pump connects to the cooling system
Answer:	No. This will only help with small leaks. As temp fix.

Product features

Frequently Asked Questions

Yes, unlike other copper stop leak products, Liquid Copper One Step sealer contains an antifreeze compatible sodium silicate formula, so draining of the cooling system is not required as long as manufactures recommendations are followed. It also can be used in water alone however, a second bottle of Liquid Copper is recommended to be added to the system once antifreeze is installed.

Do I need to drain my cooling system after using Liquid Copper?

No, this product is designed to be left in the cooling system to protect from future leaks.

What are the dosage recommendations?

Use 1 (one) bottle for regular size cooling systems, this covers most 4, 6, 8 and 10 cylinder engines. For small cooling systems, such as 4 cylinders with no air conditioning, use 1⁄2 (half) of bottle. For other small systems use approximately 3 ounces per gallon of cooling capacity. In larger systems, use 1 (one) bottle for every 6 gallons of cooling system capacity.

About Bar's Leaks

Bar’s Leaks is more than just a stop-leak company. We are a team of enthusiasts and experts who create memorable experiences with each and every one of our customers. With nearly 70 years of experience in helping everyday automobile owners repair leaks, we have the track record of success and long history that demonstrates our commitment and passion to helping drivers of all experience levels. You’ll see that our passion shines through in everything we do.

Each individual Bar’s Leaks product is formulated and manufactured right here in the U.S.A. We’re committed to creating fast and affordable products that fit perfectly into your lifestyle and budget. Choose Bar’s Leaks, so you can discover just how simple automotive maintenance can be when you have the right tools.

Product description

Radiator leaks can be overwhelming, especially when you don’t have the time or the money to take your car to the shop. Many first discover these seal coolant leaks when they walk out to their car and notice a puddle sitting beneath it. The initial reaction is to assume that the leak will create an expensive visit to the garage, not to mention the inconvenience of going without your car during the repair. Well, it’s time to ease your worries, because we have created a fast and easy-to-use product that seals internal, external and coolant-to-oil leaks. Our Bar’s Leaks Pelletized Radiator Heavy Duty Stop Leak is specially formulated to seal larger leaks better than other stop leak products. You’ll find plenty of powder formula radiator stop leak products on the market, but you won’t find a seal coolant leak solution that beats ours in effectiveness. Our Pelletized Radiator Heavy Duty Stop Leak is versatile, too, working safely and effectively on plastic, aluminum and metal radiators, heater cores, gaskets and freeze plugs. It also has a water pump lube that lubricates water pump seals and inhibits the formation of rust and scale. Simply put, it’s the fast, effective, easy-to-use powder formula radiator stop leak that’s just as simple and straightforward for a regular driver as for an experienced mechanic. Convenient solutions to seal coolant leaks shouldn’t be limited to just those with advanced automotive knowledge, which is why each product in our catalog is designed to meet the needs of anyone who gets behind the wheel of a vehicle. In under an hour, you can quickly and easily solve that once-dreaded leaky radiator. Give it a try and get your car back on the road in no time.

• Seals leaks
• Conditions cooling system
• Inhibits rust and corrosion
• Lubricates water pump seals
• Helps control electrolysis

User questions & answers

Question:	What are the beads inside for? Can they be poured into the radiator
Answer:	The beads break down in the system and contain most of whats in the product to seal . ..... So yes, please pour the entire container into the vehicle. Great question... Thank you Eric
Question:	mi radiador no tiene tapa,puedo echar el sellador en el tanque de reserva
Answer:	Si!
Question:	My car does not have a cap on the top of the radiator as the coolant gets added through the overflow. How would I add this to my car
Answer:	Thank you for your question, and for considering Bar's Leaks to help with a cooling system leak. The product you are asking about - Bar's Leaks Heavy Duty Radiator Stop Leak (part number PLT11) - is designed to be installed directly into the radiator. If you don't have access to the radiator through a radiator cap, you can remove the top hose where it attaches to the radiator and install the product in through the hose. Be sure to shake the product well before installing. If installing this way is not an option for you, we would suggest you consider our Radiator Stop Leak Tablets (part number HDC) instead. These pellets can be crumbled up and installed in the overflow reservoir, as long as it is pressurized. Please note: Cooling systems that are dirty or partially clogged should be flushed before using any cooling system stop leak products. If you have any other questions or would like additional information, please feel free to call our Tech Support team at 1-800-345-6572. We are here to assist you Monday through Friday, from 8 am to 5 pm, Eastern time.
Question:	does 2001 ford crown vic come from factory with stop leak in coolent
Answer:	I don't know. But I used this on my 2006 Ford Explorer 4.6L V-8 and it was useless. I had a very small leak in the radiator and after using this stop leak, the hole blew open a week later and all the radiator fluid came pouring out.

Product description

Picture this: you walk out to your driveway or garage and see fluid pooling on the floor, and immediately think about the inconvenience of visiting a mechanic, plus the costly bill that comes with the solution. What you need is a safe and easy way to stop that leak so you can get on with your day as planned. Our Bar’s Leaks Radiator Stop Leak Concentrate will do just that. At Bar’s Leaks, each of our products is easy to use. There’s no special automotive expertise required. If you can pop the hood on your car, you can use our radiator sealant and other products. Each of our solutions is affordable, costing just a fraction of what you’ll spend working with a mechanic. And each of our products comes with the promise of effectiveness. Our radiator stop leak concentrate is one of many chemical repair solutions available at Bar’s Leaks. This product is specially designed to stop minor cooling system leaks and drips caused by normal cooling system wear and age. It works with ALL types and colors of antifreeze coolant and/or water. All you have to do is watch Bobby and Caitlin in our how-to videos and follow our easy installation process. These videos are created to make a simple-to-use product even simpler to understand and apply to your vehicle.

• Auto & Truck Maintenance
• Country of manufacture: United States
• Manufacturer: BAR'S LEAKS
• Works with all types and colors of anti-freeze coolant
• Stops and seals coolant leaks
• One bottle treats up to 4 gallons

User questions & answers

Question:

Does it stop leaks from top of Raidator

Answer:

If you are asking about a plastic top tank that is clamped to an aluminum radiator the answer is "maybe"I had three vehicles with very tiny radiator leaks. All from the clamp seam at the sides (these were all Honda radiators) and the stop leak did work on those. One car required three bottles. But an older car with an all brass tank could not be leak stopped with just the stop leak. It did allow the owner to continue to drive the vehicle until he arranged for a real repair. The top and bottom brass tanks were unsoldered from the destroyed core and a new core was soldered in. Creating a brand new radiator. This was in an old 1060's Chrysler.

Product features

Frequently Asked Questions...

No, Bar’s Leaks Radiator Stop Leak will not clog a clean heater core. Note: If using Bar’s Leaks to stop heater core leaks, make sure you turn your heater control to HOT. Some vehicles have a valve that controls coolant flow through the core and is only opened in the HOT position.

What are the dosage recommendations?

Use one bottle for regular size cooling systems; this covers most 6, 8 and 10 cylinder engines. Use 1⁄2 bottle for four cylinder engines. One bottle treats up to 4 gallons. For larger systems use 1 bottle for every 4 gallons of capacity.

How long does it take to see results?

We recommend you drive/idle the vehicle for 15 to 30 minutes. In most cases the leak will be sealed instantly, but others will require up to 30 minutes. If the leak is not sealed in 30 minutes, a second application may be required or mechanical repair may be needed.

Bar’s Leaks is more than just a stop-leak company

We are a team of enthusiasts and experts who create memorable experiences with each and every one of our customers. With nearly 70 years of experience in helping everyday automobile owners repair leaks, we have the track record of success and long history that demonstrates our commitment and passion to helping drivers of all experience levels. You’ll see that our passion shines through in everything we do.

Product description

"The OEMTOOLS Universal Cooling System Filler purges those problematic airlocks, checks for vacuum leaks, and then allows the technician to refill the system quickly and easily. USE IS SIMPLE: 1. Before beginning, the radiator must be completely drained of fluid. And the car should be engaged and the heater turned on, so that the heater coil is open and can be evacuated and refilled. 2. Find the right sized rubber bush for your radiator neck or coolant reservoir, and then fit the gauged cooling system adapter firmly into place. Turn the tightener on the valve clockwise until it snugly fits the radiator neck. 3. Connect venturi valve to the cooling system adapter, connect shop air to the venturi valve, and connect evacuator hose to the other side of the venture valve; make sure all valve openings are closed until the shop air is connected. 4. The hose on the other side of the venturi valve may evacuate fluid, if any is trapped in the system, so you may want to place that tube into a waste fluid pan. 5. Once the air line is attached, open the venturi valve, and the intermediate valve on the adapter assembly; Draw vacuum until the gauge reads between 50 and 60 cmHG) 6. Close the intermediate valve and venturi valve. If the vacuum drops, you have a leak in your system. If it does not, you’re ready to refill your coolant. 7. Connect your coolant hose. Drop the other end into a large container of coolant, mixed to your preferred specifications. Open the coolant tube valve, and the coolant will flow. Use a large container so that you won’t run out and introduce air to the coolant system. 8. When the gauge reaches 0 or the coolant stops flowing.



If something happens to it during normal use, it should be covered by the OEMTOOLS Limited One Year warranty. See product manual for full warranty conditions and restrictions.



SPECIFICATIONS

- Comes with convenient carrying case

- Includes 5 adapters "

• EASY COMPLETE COOLANT SYSTEM REFILLER: Refills the entire cooling system including the Heater Core
• HUGE TIME SAVER: Eliminate time consuming bleeding and purging, and completely remove all trapped air from your cooling system; Removing air through a radiator burp is much more time intensive
• DISCOVER LEAKS: It’s easy to check for leaks while under vacuum; if your vacuum level decreases while all valves are off, you have a leak in your system
• WIDELY USEFUL: Comes with five adapters that fit most common radiator necks and coolant reservoirs
• SIMPLE TO USE: All you need to use this coolant system vacuum kit is a shop air compressor; The included venturi valve turns any air compressor input into a strong vacuum force

User questions & answers

Question:	There was a small circular metal mesh filter gauze in the box, where does it go
Answer:	Yes, it also works on some years of Ford Ranger .
Question:	What exactly does "car should be engaged" mean? Also, ? if anyone else has there gage stick at 15 going up and down on gage and any fix
Answer:	Probably the life of your engine LOL. The fluid doesn't light up by itself. You need a UV light flashlight to excite it. A cheap LED blacklight is fine. But, when I changed my water pump the antifreeze glowed easily. My water pump was leaking from the weep hole and there was a bright plume of green stain. In a darkened garage with the blacklight you would easily see any leaking antifreeze. Run in cooling system a few days then check for leaks. I put a new bottle in after replacing water pump and putting in universal long life antifreeze (Peak brand).
Question:	What is the diameter of the plug connector? Will this fit onto a 1/4 coupler for air compressor
Answer:	It will have an slight orange tint. BE VERY CAREFUL. This stuff dyes skin!. I recommend putting in radiator or removing hose from top of engine to pour down hose. You can add to overflow reservoir tank but it will take 2-3 days to draw into radiator. Doesn't effect anti-freeze, just glows under fluorescent black light. When my weep hole on water pump started leaking it glowed under it brightly. Works great but need 3-5 heat and cool of engine to show leaks.
Question:	With this tool, is there a convienient way to pre-load the the filler tube with coolant so that a slug of air is not introduced in the system
Answer:	Long enough to get the thermostat to open in warm weather it took less than 5 minutes.

Product features

OEMTOOLS24444 Cooling System Refiller AirEvac Kit

Our vacuum coolant tool purges trapped air from the cooling system to eliminate the threat of engine damage from overheating. Refills the cooling system quickly and efficiently with no mess. It has a muffler that dampens the noise output. Reliable and mess-free coolant flush tool.

Radiator Pressure Test / Vacuum Coolant Filler

Quickly refills cooling system and eliminates trapped air. Performs vacuum leak tests on the cooling system.

Vacuum Coolant Tool/ Cooling System Refill Tool

Universal adapter forms an airtight seal with most radiator and coolant bottle necks. No custom adapters required.

Everything You Need

Includes five adapters that fit most makes and models. Comes in a sturdy blow mold storage case.

Product description

We all love using our tablets these days — reading, gaming, surfing the web, you name it! Unfortunately, that kind of tablet won’t be able to fix your leaky radiator. Like so many of the parts on your vehicle, your radiator needs regular maintenance to remain in tip-top condition. When you need radiator leak repair, you may be picturing a time-consuming and expensive trip to the mechanic. But, with Bar’s Leaks, that doesn’t have to be your reality when searching to repair a radiator leak. Our product engineers created these Bar’s Leaks Radiator Stop Leak Tablets to repair radiator leaks from within so you can get back on the road in no time. These tablets might not be able to surf the web, but they are definitely more powerful than you think. But what our radiator leak repair tablets offer in effectiveness, they don’t sacrifice in usability or affordability. In fact, you need no special automotive expertise to apply our tablets to repair radiator leaks. Our Radiator Stop Leak Tablets inhibit the formation of rust and scale, neutralize pH imbalance, control electrolysis, lubricate and seal internal, external and coolant-to-oil leaks. Imagine getting that range of effectiveness in a product you can buy off the shelf rather than through service only a mechanic can provide. In fact, this is the same product that’s been used right on the assembly line by OEM automakers around the world for 30+ years. This solution is the result of careful research and testing on the part of our team of top-flight chemical engineers. They work each day to improve existing products like our radiator leak repair tablets, as well as to develop new products to keep up with the latest in automotive innovations and technologies. Your leak’s days are numbered. Pick up a pack at your nearest auto parts store and make sure you watch our how-to video for an easy step-by-step installation process.

• Seals leaks
• Conditions cooling system
• Inhibits rust and corrosion
• Lubricates water pump seals
• Helps control electrolysis

User questions & answers

Question:	i have my dads cadilliac ,,with a pin hole in readiator...seems the radiator cap is on the reservoir..can i put these in reservoir??? thanks
Answer:	Yes 6 quart bottles in the case.
Question:	Will this product work and be compatable with the oat purple antifreeze in a 2014 jeep grand cherokee
Answer:	Unfortunately, the only viscosity listed for your vehicle is 5W-30, so this is all we suggest using as well.
Question:	Will tablets clog radiator or any systems in SUVs
Answer:	Valvoline Advanced Synthetic SAE 5W-30 Full Synthetic Motor Oil - 1 Quart Bottle (Case of 6); VV955-6PK
Question:	Will this also stop small leaks in a heater core
Answer:	Unfortunately, this product is not recommend for your Prius. We recommend using the Valvoline 5W-30 SynPower Full Synthetic Motor Oil - 1qt (Case of 6) (VV955-6PK), and the engine capacity is 3.9 quarts. For the drain interval, Valvoline always recommends following the manufacturer specified drain interval regardless of grade. It is recommended by Toyota to change the oil every 6 months or 5,000 miles for this vehicle.

Product features

Frequently Asked Questions

Just add tablets to warm water.

How does Bar’s Leaks work?

Bar’s Leaks will seal external, internal and coolant leaks. Once installed, the Bar’s Leaks particles shrink up to 15 percent. On an external leak, the tiny particles flow to the point of the leak. They then collect at the outside of the seepage and build inward. Internal leaks, the particles will burn when subjected to the 5000°F heat of the combustion chamber to seal seepage and small cracks.

How long does it take for the Bar’s Leaks to work?

We recommend you drive/idle vehicle for 15 to 20 minutes. In most cases the leak will be sealed with in this amount of time. If the leak is not sealed, a second application maybe required.

Bar’s Leaks is more than just a stop-leak company

We are a team of enthusiasts and experts who create memorable experiences with each and every one of our customers. With nearly 70 years of experience in helping everyday automobile owners repair leaks, we have the track record of success and long history that demonstrates our commitment and passion to helping drivers of all experience levels. You’ll see that our passion shines through in everything we do.

Product description

Prestone Radiator Stop Leak features a patented formula that quickly stops leaks in radiators, water pumps, and heater cores while also protecting against pitting and corrosion. Prestone Radiator Stop Leak takes sealing performance to a higher level by both stopping the leak as well as the corrosive condition that causes leaks in the first place. Its unique combination of natural and synthetic components provides the ability to seal leaks up to 0.020-inches x 0.5-inches. What makes this possible is the size, strength, and durability afforded by fibrous particles, the same materials in bulletproof vests. Prestone Radiator Stop Leak particles have been chosen to seal even large leaks without interfering with the flow through the radiator and heater core tubes. It also boosts corrosion inhibitors to protect against pitting and corrosion, which cause radiator leaks.

• Patented formula quickly stops leaks in radiators, water pumps, and heater cores
• Boosts corrosion inhibitors to protect against pitting and corrosion, which cause radiator leaks
• Combination of natural and synthetic components provides the ability to seal leaks up to 0.020" x 0.5"
• Seals even large leaks without interfering with the flow through the radiator or heater core
• Stops the leak as well as the corrosive condition that causes it

User questions & answers

Question:	Is this product silicate free. For a 1997 Cadillac Seville
Answer:	I returned this product because I sold the car
Question:	Do you have to use 50/50 antifreeze coolant or can you use water in replace of antifreeze
Answer:	You can. I wouldn’t. Antifreeze is also coolant. You should never put straight water in your radiator.

• Compatible For FORD F250 F350 F450 6.0L Powerstroke 2003 2004 2005 2006 2007 AT/MT
• High Performance, 30% Extra Flow.
• Made of high quality full T-6061 aluminum construction
• Stronger and higher capacity for coolant than stock units
• Vehicle Tested. Perfect Fit. 1 Year Manufacturer Warranty

User questions & answers

Question:	Is the core really 2.3 inches thick, most 2 core radiators are only 1.4 inches thick
Answer:	Thank you for your question, and for considering Bar's Leaks Radiator Stop Leak Tablets (part number HDC) to help with a pinhole leak in the Cadillac radiator. As long as the coolant reservoir is pressurized, you may add the tablets there. For quicker results, you can also crumble the tablets up a little bit before installing them. The proper dosage is 2 tablets per gallon of coolant, and we do recommend installing them into a clean cooling system, following the instructions. If you have any other questions, or we may be of additional assistance, please feel free to call our Tech Support Team at 1-800-345-6572. We are here to assist you Monday through Friday, from 8 am to 5 pm, Eastern time.
Question:	So what fittings would I have to get to make this radiator work in my 2003 6.0 with automatic transmission
Answer:	Does not work, don’t waste your money
Question:	Do I need to reuse the fittings from the old radiator? I have a 2004 F350 diesel automatic
Answer:	I don't believe that this particular product will clog the radiator, hoses or heater core in any vehicle. I purchased this particular product because for my vehicle, a GM V-8 car from 2003, these tablets are added to the coolant both by the manufacturer when the car is first assembled and by the dealer when the coolant is being changed. These tablets are listed as a requirement to prevent trouble going forward. With 150,000 miles on the vehicle at this point with these tablets being in the coolant from day one, I've had no cooling system issues. These tablets are made of very finely ground up walnut shells and are not made with synthetic polymers or sealants.
Question:	Does this have quick disconnect fittings for 05-07 models
Answer:	Heater core leaks can be tough...... but yes... It should

Product features

Application

For FORD F250 F350 F450 6.0L Powerstroke 2003-2007 AT/MT

Description

Overall Size:33.46" x 29.72" x 4.13"

Core Size:28.54" x 28.54" x 2.36"

High Performance, 30% Extra Flow.

Unique High Density Core.

Polished aluminum finish.

Radiator is made of ALL ALUMINUM for maximum cooling efficiency

Direct bolt-on OE fitment or replacement

Improves cooling by 35% to 45% temperature

Made of high quality full T-6061 aluminum construction

Stronger and higher capacity for coolant than stock units

Package Includes

1 * Aluminum Radiator , as shown in the picture

Product description

Radiator Stop Leak, Granules, Size 0. 07 Oz, Dosage 0. 07 oz. , Specific Gravity Less than 1, Rust, For Use With Radiator/Coolant System Leaks

• JB WELD PERM O SEAL : Is a specially formulated non-toxic compound ground to a very fine particle size to quickly mix and flow into all areas of the cooling system to find and seal leaks.
• WHAT THE PROS USE: Mechanics, repair pros, and any avid DIYer knows our products bond strong to a variety of surfaces in even the toughest environments; and they have always been made in the USA.
• MONEY SAVING REPAIR SOLUTION: The powered concentrate allows for an economical repair as compared to liquid based alternatives that use similar technology.
• DURABLE FAST FIX: The special compound will quickly seal leaks and will also act as a rust inhibitor and lubricant to internal cooling system parts. It will not clog or harm your cooling system.
• DO IT YOURSELF: Big or small, you can DIY it with J-B. Our heavy duty adhesives repair & restore it right the first time. JB Weld delivers the legendary performance of the World's Strongest Bond.

User questions & answers

Question:	can you use this on indoor plumbing I have a pin hole in leak in copper pipe under the slab of my house
Answer:	I personally don't think it would work. Stop leak in a radiator has endless chances to stop the leak because the coolant-water continually recirculates. I don't think one flow by would be enough. I have had your problem. Trying to solder the pin hole is difficult if there is water in the pipe. I would clean around the hole with steel wool. I would force a small copper wire in the hole just about even with the hole to stop any flow of water. Then, I would solder over the wire.
Question:	how many one should I use ? I've tried 4 packs of a similar products and engine is still smoking
Answer:	Only 1 .... if you have used 4 others your leak is too large and with all that product in there you will need a professional coolant system flush and repair of leak
Question:	Does it work with plastic radiators small leak
Answer:	Not sure. Mine is metal.
Question:	Does it work for heater core leak
Answer:	I would have to say it depends on the size of the opening of the leak. If it is a very small leak, the perm-o-seal will work the same in the heater coil as the radiator. If you can't see the opening, then you will have to estimate by the amount of the leak. If it is rather slow, then for the price of perm-o-seal, it's worth a try.

Product description

C&R Stop Leak is an item that can prevent a DNF in the event of a radiator puncture, cracked cylinder head, or head gasket problem. Many race cars have dropped out of races because of these problems. Up to now, the drawback of using stop leak was the residue that it left behind. Most stop leaks use ceramic and rely on air to make it coagulate and plug a hole or crack. This works well but the bad side effect is that when the water is drained from the system during an engine change, the stop leak will dry inside of the radiator, heads, and engine block leaving a ceramic coating. Ceramic is a good insulator but this is not what you want inside of your cooling system. Even products that don't contain ceramics will leave a residue. Any residue or coating inside the tubes of a radiator will reduce its efficiency. After extensive research, C & R Racing has found a stop leak that doesn't leave a residue. C&R Stop Leak stays suspended in the water so that when the water is drained, all of the stop leak is drained with the water leaving no residue.

• Can prevent a DNF in the event of a radiator puncture, cracked cylinder head, or head gasket Problem
• After extensive research, C & R racing has found a stop leak that doesn't leave a residue
• C&R Stop Leak stays suspended in the water so that when the water is drained, all of the stop leak is drained with the water leaving no residue
• Package Weight : 1.2 pounds

Product description

K-Seal 8 fluid ounce bottle is effective to 20 quarts cooling capacity. Just shake, pour and go. It repairs leaks and cracks in radiator, head gasket, heater core, freeze plugs, water pump casing, cylinder heads and engine blocks. For truck, tractor, industrial, RV and large capacity engines.

• REPAIRS IN MINUTES: Create a permanent weld within the entire coolant system, including on hard plastic radiators and aluminum heads and blocks in larger capacity engines, AG, RV etc. The only industrial coolant sealant university tested to meet ASTM D3147.
• SEALS CRACKS AND STOPS LEAKS: Avoid expensive downtime, our coolant stop leak will permanently seal cracks and holes! Quickly repair your head gasket, block, leaking radiator, freeze plug, heater core & water pump casing with no adverse impact on efficiency.
• POUR AND GO: Our cooling system sealer is easy to use just shake the bottle, add to your radiator/overflow and run the engine! Unlike some competitive products, it mixes with all types of antifreeze, no draining, flushing or pulling the thermostat required.
• SCIENTIFICALLY TESTED: Safe and effective, our Heavy Duty Coolant stop leak repair seals leaks up to 1/32 of an inch! Once cured, it withstands the high pressure of the combustion chamber, without failing or clogging the cooling system. US Bestseller
• CUSTOMER SUPPORT: If our engine coolant leak doesn’t seal your head gasket, the system might be over-pressurized. Check the Technical Specification section of this page for extra instructions for a successful repair. Over 8 million bottles sold. Save time/money

User questions & answers

Question:	Tried using alumaseal, which isn't working. will i need to flush the system before using the k-seal
Answer:	I used the HD Truck bottle on my 1998 GEO Tracker ( used 1/3 of the bottle ) of K-Seal and it worked. I have used so many to no avail. To answer your question, I must have @ least 3 to 4 other sealers in my colling system when I added K-Seal. It's been almost a year & no adverse effects having not flushed my radiator. Should I have flushed the radiator & the system? Yes, I should have.
Question:	Will this work with aluminum heads
Answer:	It works equally well with cast iron or aluminum. Great Stuff. Not a long-term solution, but it will buy you a lot of time.
Question:	how much do i need to pour in a diesel 1 ton cummins
Answer:	You need this one bottle for a Dodge 3500 hd. I have this one bottle in my HD Freightliner 330hp MBZ engine hauling freight (54,000 lbs cap) 6 days a week and it stopped my coolant leak in the engine bay and heater core with no blockage and no. My opinion, Many reviews say products dont work BECAUSE most people dont take care of their equipment and their vehicles are old, high mileage and no maintenance done. None of the add to a tank products are as good as replacing with new parts but thats expensive, we get it. This may or may not fix your problem but its a low cost gamble with a high probability of success. Dont listen to the negative reviews. If the problem comes back, your damage was too far gone and in need of replacement anyway.
Question:	Does it work on potentially warped heads
Answer:	Probably not, but read on, and learn about all coolant leak problems if you want and how effective this product is....This bottle is enough for up to 12 cylinder engines.This will work for any type of coolant leak, if the leak is small. This will work on head gasket leaks also, read this 3 minute read on what to do if its a head gasket leak. Also, for for your information - This is "liquid glass" that dries rock hard and will seal your head gasket leak (its been used in farm equipment for over 75 years and is WELL proven to work, and it was discovered over a hundred years ago), but you MUST perform a simple test. Okay, start your vehicle, let it idle for 45 minutes straight. If the temperature gauge does not indicate that your engine is overheating, then this product will most likely work. No overheating at an idle for 45 minutes MEANS that the head gasket leak is still small enough to be filled by this liquid glass. Shake the container for 30 seconds, put the liquid in your COOLANT system, drive for an hour (or other words, operate at normal temperature, especially if its an aluminum block with cast iron heads), and then let it sit for 24-48 hours (the longest time is better). This sitting time allows the liquid glass to harden completely through. If it overheats then, it most likely its a thermostat or water pump or heater core or lower radiator hose sucking shut under load (sometimes the upper one also) or radiator or radiator fan or leaking core plug or leaking coolant storage unit OR your ENGINE OIL is very low from leaking (completely different problem that has nothing to do with the coolant system, but much to do with the cooling of the engine also) or heat indicator gauge or it still could be a blown head gasket, because the hole is just too big for the sealant to seal it up OR the head gasket BLOWS in another area after you have sealed up the first hole with the coolant sealant you added (that's why you should add it three times three different bottles of liquid glass over three months as I will mention below, that way, if it does blow in another area you will most likely SEAL that area also). But buy this and try it even if your vehicle fails the 45 minute test after 10 minutes. Sometimes, it will still seal the leak, or at least slow it down. Also, you can add this once a month for three months, and maybe that will work also (this gives you a month to see how the car performs under various conditions, and for the reason I just mentioned above). If you need the car to last for just a short while (month to six months) this can be a quick fix to hold you over until you can sell the car (under buyer be where conditions) or get it to the shop when you have the money. $15 and a few minutes of your time OR the mechanic, you have to decide. Good luck. I'm a retired mechanic with two degrees in Diesel mechanics and I ran a shop for a year.... :)

Product features

Permanent Coolant Leak Repair with K-Seal

Coolant leaks don’t have to result in costly repair bills – simply add K-Seal to your coolant system for a quick and permanent fix. K-Seal is trusted by millions of customers worldwide, and the only coolant leak repair fluid carried by the AA, the UK’s largest roadside repair company.

K-Seal’s unique formula will seek out holes and cracks, and permanently seal them, with no adverse impact on the efficiency of your engine cooling.

Coolant System Sealer

Once the crack or hole has been located, the microfibers instantly begin to mesh together within the gap, building a seal literally fiber by fiber to stop the coolant leaking through the gap.

The particles in our K-Seal products are very precisely designed to be large enough to repair holes up to 0.635mm in size but deliberately small enough to never block any passageways or tubes within the cooling system, including those inside the heater core and radiator.

Once the microfibers have sealed and fixed the leak, a combination of exposure to either the external atmosphere or the gases within the combustion chamber and the heat within the cooling system and engine causes the K-Seal formula to cure. This results in an extremely strong and permanent seal able to withstand even the high pressures from the combustion chamber. K-Seal Ultimate is able to repair head gasket failures, even where the cooling system is being over-pressurised by exhaust gases entering the system.

Common Coolant Leaks

K-Seal can deal with all of these leaks and more, as long as they are identified as early as possible. It is easy to use – simply shake it and pour it into the coolant mixture and it will work automatically.

Product description

Features:



14caps and 2 cap adaptors.

High powered pump.

Easy-to-read dial.

Rubber casing around dial gauge.

Rubber O rings around various caps for air tight seals.





Application:



Fit for Alfa, Fit for Audi, Fit for BMW, Fit for Mercedes-Benz, Fit for Chrysler Citroen, Fit for Ford, Fit for GM, Fit for Honda, Fit for Jaguar Lexus, Fit for Mazda Mitsubishi, Fit for Nissan, Fit Opel Peugeot, Fit for Rover, Fit for Saab, Suzuki, Fit for Toyota, Fit for Volvo,Fit for VW.





Tester Fits Vehicles:



Adapter 1 - Fit for GM 4 Cylinder (Fit Buick,Fit for Chevrolet )

Adapter 2 - Truck -Fit for GM

Adapter 3 - Fit for Mercedes-Benz , Fit for Ford , Fit for Chrysler , Fit for GM, Fit for Jeep,Truck , Fit Peugeot

Adapter 4 - Acura, Fit for Dodge, Eagle, Geo, Fit for Honda, Isuzu, Lexus, Fit for Mazda, Fit forToyota,Infiniti, Fit for Nissan, Fit for GM(Nova, Sprint), Fit Peugeot, Fit for Ford , Fit for Chrysler.

Adapter 5 - Fit for Toyota, Fit for Honda, Lexus, Fit for Chrysler, Acura,Dodge

Adapter 6 - Buick, Fit for Chevrolet, Fit for Ford ,Fit Lincoln, Fit for GM, Fit Opel, Fit for VW, Fit for Saab, Fit Benz(ML-class), Fit for Jaguar, Fit for Rover

Adapter 7 - Fit for Jeep, Renault, Fit for Saab , Fit for Volvo, Fit for Audi, Fit Citron, Fit Flat, Fit Peugeot, Alfa,

Adapter 8 - Fit for VW

Adapter 9 - Fit for Audi (A4 A6 A8), Fit for VW(Passa 1997-2002,Golf,Jetta)

Adapter 10 - Fit for BMW

Adapter 11 - Fit for VW, Fit for Audi

Adapter 12 - Fit for Ford, Fit for GM, Fit for Rover, Fit Opel, Fit Jaguar, Fit for BMW 245(BMW up to 1987)

Adapter 13 - Fit for Mercedes-Benz Sedans with Thresded Neck.

Adapter 14 - Fit for Saab, Fit Opel

Tube 2/3 cap adaptor - used to test the pressure cap release pressure value

Tube 4/5 cap adaptor - used to test pressure cap release pressure value

"T" shape joint 5/16", 3/8"

Oil hose 5/16", 3/8" Hose clamp

• 21 pc cooling system pressure testing kit. Aluminum adapters for use with most cars trucks
• Perfect for head gasket failure detection (which side of block or which cylinder leaks) .
• Thumb-operated relief valve for quick and easy pressure release and self-locking quick-disconnecting components.
• Tester helps detect internal and external leaks.
• Kit includes hand pump to 35 PSI, 12 Aluminum Radiator Adapters, Thermometer, Form Fitted Case