9 best fuel regulator

A fuel regulator, often referred to as a fuel pressure regulator, is a critical component of a vehicle's fuel system, especially in fuel-injected engines. Its primary function is to maintain a consistent and optimal fuel pressure within the fuel system. Here's what you need to know about fuel regulators:

  1. Purpose: The main purpose of a fuel regulator is to ensure that the fuel pressure supplied to the fuel injectors remains constant, regardless of variations in engine load or operating conditions. This consistency is essential for efficient combustion and engine performance.

  2. Location: Fuel regulators are typically located within the fuel system, either in the fuel rail (for multi-port fuel injection systems) or on the return side of the fuel system (for return-style fuel systems).

  3. Operation: Fuel regulators operate by using a diaphragm, a spring, and a vacuum or boost reference. The diaphragm senses changes in manifold pressure (vacuum or boost), and the spring exerts a force on the diaphragm. This force opposes the pressure in the fuel rail, and the equilibrium between the spring and fuel pressure determines the regulated pressure.

  4. Fuel Pressure Regulation: Fuel regulators are designed to maintain a specific, constant fuel pressure. This pressure is determined by the engine's requirements and is typically specified in pounds per square inch (psi). Common fuel pressure settings range from around 30 psi to 60 psi, depending on the engine and fuel system design.

  5. Vacuum/Boost Reference: Many fuel regulators have a vacuum or boost reference port. This port allows the regulator to adjust fuel pressure in response to changes in engine load and demand. For example, during acceleration, the regulator may increase fuel pressure to meet the engine's higher demand for fuel.

  6. Return vs. Returnless Systems: Fuel regulators are used in both return-style and returnless fuel systems. Return-style systems return excess fuel to the fuel tank, while returnless systems regulate fuel pressure by adjusting the speed of the fuel pump.

  7. Replacement: Fuel regulators can wear out or develop issues over time. When diagnosing fuel system problems, mechanics often check the fuel pressure and the performance of the fuel regulator. If it is determined that the regulator is faulty or not maintaining the correct pressure, it may need to be replaced.

  8. Performance and Efficiency: A properly functioning fuel regulator is essential for the engine's performance and fuel efficiency. An incorrectly regulated fuel pressure can lead to poor combustion, decreased power, and increased fuel consumption.

  9. Upgraded Regulators: In high-performance applications, aftermarket or adjustable fuel regulators are sometimes used.These allow tuners to customize fuel pressure to match the specific requirements of modified engines.

In summary, a fuel regulator is a vital component of a vehicle's fuel system, ensuring that the correct and constant fuel pressure is delivered to the fuel injectors. It plays a crucial role in engine performance, combustion efficiency, and overall vehicle operation in both traditional and modern fuel-injected engines. Proper maintenance and replacement, if necessary, are essential to ensure the continued optimal operation of the fuel system.

Below you can find our editor's choice of the best fuel regulator on the market
  

Partschoice 0-140 PSI Universal Adjustable Fuel Pressure Regulator Kit W/Gauge Hose, Red FPR

Based on 309 reviews Check latest price

Product description

Specifications:

Material: Aluminium Alloy

Special Features: Universal

Color: Red

Dimensions: (4.33 x 4.33 x 2.36)" / (11 x 11 x 6)cm (L x W x H)

Weight: 1.5LB

Pressure: 0-140 PSI

Professional installation is highly recommended

Not Legal in the state of California & New York, Not complies with C.A.R.B. regulations



Package Includes:

1 x Fuel Pressure Regulator

2 x Hose

1 x Accessories

  • Universal Aluminum Fuel Pressure Regulator - Adjustable from 0 psi to 140 psi Maximum Fuel Pump Capacity
  • Perfect fit all type car. Designed for use with a fuel pump where fuel pressure is steadily delivered
  • The oil in the gauge stabilizes the needle to give you the most accurate readings
  • Improves Fuel Delivery Efficiency and Prevents Fuel Starvation
  • Not Legal in the state of California & New York, Not complies with C.A.R.B. regulations

User questions & answers

Question: Is this a pump also
Answer: The one I got was brand new. I returned it because it was smaller than I thought, cheaper looking than I thought, and I ordered the black camo but you couldn’t even see the camo print. It isn’t as vibrant as in the pictures. I ended up returning the bag and buying another brand and I’m IN LOVE!! So much nicer, more sturdy, and plenty of room!
Question: Will this work on 1998 honda civic ex coupe
Answer: Sure
Question: Will this adapt a tbi fuel system to a carburetor pressure
Answer: Just the cord, no power bank
Question: Will this work on polaris rxl
Answer: No it does not.

Aeromotive 13129 Regulator, EFI Bypass, Adjustable (2) -6 inlets, (1) -6 bypass

Aeromotive

Based on 169 reviews Check latest price

Product description

Aeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous approach to engineering, Aeromotive Fuel Systems has become the absolute pinnacle of performance fuel delivery. This EFI Bypass Regulator encompasses features and benefits only found on Aeromotive regulators and in a new smaller and lighter package. Capable of supporting applications up to 1000 HP, the 13129 EFI Bypass Regulator can handle high-flow EFI fuel pumps and the most aggressive street machines; especially those looking for a cleaner, lighter solution where performance is critical or where space is a premium. Base pressure adjustable from 30-70 psi Fuel pressure rises on a 1:1 ratio with boost Provides ORB-06 inlet/outlet ports and ORB-06 return port 1/8'' NPT gauge port Vacuum boost port CNC-Machined 6061 T6 billet aluminum construction.

  • Base pressure adjustable from 30-70 psi
  • Fuel pressure rises on a 1:1 ratio with boost
  • Provides ORB-06 inlet/outlet ports and ORB-06 return port
  • 1/8" NPT gauge port
  • Vacuum boost port

User questions & answers

Question: Can this be used on non-turbo applications? I removed my fuel pressure damper on my old Datsun and would just like a regulator to do double duty
Answer: I did it in the airport. The back pack does not have a strap to slid over the suitcase handle to secure it but you can still sit it on suitcase and roll it. It is a very nice backpack.
Question: Can this be used in the same application as the Aeromotive
Answer: Hi the padding is the same thickness of what is around the laptop. The bottom of the laptops slot doesn’t reach all the way to the bottom of the bag. It’s swollen. A little further up about an inch or two.
Question: Wiil keep stable the fuel pressure along the extreme variation of under hood temps. Thanks
Answer: I purchased in February 2019. I use it every day for work. It carries my laptop, student files, assessment materials, etc. sometimes I stuff it and it’s still going strong!
Question: Will this work with diesel engines
Answer: Hello, It's 100% polyster. Tear-resistant and water-resistant.

Fuel Injection Pressure Regulator Kit with Clip,Snap Ring 3500217-3072,FP10021,FP10238,SKPR217,SKPR203, PR203,PR217,PR376 compatible with C3500,C7500 Kodiak, Camaro,Express 1500,Express 2500,Express

Based on 30 reviews Check latest price
  • 🚗NOTICE: Check carefully of the FITMENT,then taking me home,Strict quality control standards, 1 years warranty, hassle-free return and money back policy, buy with confidence!Fuel Injection Pressure Regulator
  • 🚗OEM: 12499841,1255590912574986,12579942,12583236,12641035,1580730,17113203,17113288,17113517,17113536,17113555,17113660,17113678,17122592,1722592
  • 🚗OEM: FP10075,FP10021,FP10238,SKPR217,SKPR203,PR203,PR217,PR376,2173073,2173074,2173082,217392,more OEM,Description below
  • 🚗FITMENT1: Acura SLX 1998-1999.Buick LeSabre 1996-2005,Park Avenue 1991-2005,Regal 1990-2004,Rainier 2004.Cadillac DeVille 1996-1999,Eldorado 1996-1999,Escalade 1999-2003,ESV 2003,EXT 2002-2003,Seville 1996-1999.Fuel Injection Pressure Regulator
  • 🚗FITMENT2: Chevrole Astro 1996-2005,Avalanche 1500 2002-2003,Avalanche 2500 2002-2003,Blazer 1996-2005,C1500 1996-1999,C1500 Suburban 1996-1999,C2500 1996-2000,C2500 Suburban 1996-1999,C3500 1996-2000,C7500 Kodiak 2003,more fitment,decribetion below

User questions & answers

Question: Do you have to set the fuel pressure or is it pre set
Answer: Yes, I used this as my personal item on a recent flight. It was really wonderful.

Product features

Fuel Injection Pressure Regulator FP10075,FP10021,FP10238,SKPR217,SKPR203, PR203,PR217,PR376

OEM

12499841,12555909,12574986,12579942,12583236,12641035,1580730,17113203,17113288,17113517,17113536,17113555,17113660,17113678,17122592,1722592,19167908,19210686,19245529,19245530,19245531,2171581,2171629,2173072,2173073,2173074,2173082,217392,8125749860,8171132030,8171135360,8171136780,8192455300,885174,88894356,8890174530,8890604200,89017453,89060418,89060420,89060422,FP10075,FP10021,FP10238,SKPR217,SKPR203,PR203,PR217,PR376.

FITMENT

Cadillac:

DeVille,Eldorado,Escalade,Escalade ESV,Escalade EXT,Seville.

Chevrole:

Astro,Avalanche 1500,Avalanche 2500,Blazer,C1500,C1500 Suburban,C2500,C2500 Suburban,C3500,C7500 Kodiak,Camaro,Express 1500,Express 2500,Express 3500,Impala,K1500,K1500 Suburban,K2500,K2500 Suburban,K3500,Monte Carlo,P30,S10,Savana 2500,Sierra 3500,Silverado 1500,Silverado 1500 HD,Silverado 2500,Silverado 2500 HD,Silverado 3500,SSR,Suburban 1500,Suburban 2500,Tahoe,Trailblazer,Trailblazer EXT.

Honda:Passport.

Isuzu:Amigo Ascender Axiom Hombre Rodem Trooper VehiCROSS.

Universal Adjustable EFI Aluminum Fuel Pressure Regulator Kit w/ 0-160 psi Gauge AN6-6AN Fuel Line Hose Fittings Black & Red

BETTERCLOUD

Based on 181 reviews Check latest price
  • 🔧Comes with a fuel pressure regulator, -6AN inlet ports and return port.
  • 🔧The fuel hose made of 304 stainless steel & CPE synthetic rubber, Length: 170mm & 380mm & 660mm
  • 🔧The hose end fitting made of high quality T6061 Aluminum and -6AN size.
  • 🔧Comes with a 1-3/4'' | 45mm gauge & 1/8'' NPT gauge port, adjustable from 0 to 100 psi to maximum fuel pump capacity.
  • 🔧Support high power application: 300-800 H

User questions & answers

Question: Can you remove the plug from the front and put the gauge their
Answer: You have to have a portable charger in the pocket on the inside
Question: Can get replacement diaphragm or is diaphragm compatible with another brand
Answer: I would think so, the front pocket of this backpack has pen holders and pockets for other things, and the largest compartment has 15.6inches laptop compartment. But it is not really designed for that, it has insulated round pockets for bottles, But as far as the quality, it is great.
Question: What if i didnt get any of the fittings the fuell pressure gauge? I only got three hoses and the fuel pressure regulator
Answer: Yes, I would think so. It is an amazing diaper bag in good size. It is not only fit for new Mon but also fit for new Dad, boys and girls. It does not look like a diaper bag, it is a good point! Good choise for baby shower gift! Not only good choise for Christmas gift but also good choise for Mother's Day gift/ Father's Day gift, new Mon/new Dad's birthday gift, etc... Anyway, recemend for this diaper bag backpack! 
Question: Will this run. A caburator
Answer: Dear friend, Yes, no problem. It can fit easily. Hope you can like it.

Product features

Features:

  • Make the accelerator more sensitive and relaxed
  • It helps to ensure more stable oil pressure
  • Add moderate fuel-injection quantity without changing computer oil supply mode, to save much money
  • Numerical control machining, lightweight yet durable
  • It can promote car performance, reliability and lifespan
  • Consist of pressure gage and connectors
  • Long Life and High Reliability Operation

Specification:

  • Comes with a 1-3/4'' | 45mm gauge & 1/8'' NPT gauge port, adjustable from 0 to 100 psi to maximum fuel pump capacity
  • Support high power application: 300-800 hp
  • Length of the fuel hose: 170mm ; 380mm ; 660mm

Note:

  • Please check the [Installation Manual] in the Technical Specifications before installation, thanks!

Fitment:

  • Universal Fit For Most of Car

Package Includes:

  • 1X Fuel Pressure Regulator
  • 1X Liquid Filled Gauge
  • 1X 1-3/4" | 45mm Gauge
  • 1X 1/8" NPT Gauge Port
  • 3X Stainless Steel Braided Fuel Hose
  • 7X AN-6 Hose End Fitting
  • As the pictures shown

Aeromotive 13136 Regulator, Billet, EFI, 2x -6 inlet & -6 return, (Black Anodized Version of 13129)

Aeromotive

Based on 40 reviews Check latest price

Product description

Aeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous approach to engineering, Aeromotive Fuel Systems has become the absolute pinnacle of performance fuel delivery. This EFI Bypass Regulator encompasses features and benefits only found on Aeromotive regulators and in a new smaller and lighter package. Capable of supporting applications up to 1000 HP, the 13129 EFI Bypass Regulator can handle high-flow EFI fuel pumps and the most aggressive street machines; especially those looking for a cleaner, lighter solution where performance is critical or where space is a premium. Base pressure adjustable from 30-70 psi. Fuel pressure rises on a 1:1 ratio with boost. Provides ORB-06 inlet/outlet ports and ORB-06 return port1/8" NPT gauge port. Bright Dip Black Anodized Finish. Vacuum boost port. CNC-Machined 6061 T6 billet aluminum construction.

  • Inlet Port Diameter: 3/8", Outlet Port Diameter: 3/8"
  • Port Quantity: 3
  • Base pressure adjustable from 30-70 psi
  • Billet EFI Black Regulator, -06 inlet & -06 return.
  • Fuel pressure rises on a 1:1 ratio with boost

Fuel Injection Pressure Regulator PR92 PR4087 17091410 8170914100 Compatible With Acura SLX, Buick Century/Skylark,Honda Passport, Cadillac

Based on 3 reviews Check latest price

Product description

FITS THE FOLLOWING VEHICLES:



Acura SLX 3.2L 1996-1997

Buick Century 2.2L 1993-1996

Buick Skylark 2.3L 1991-1995

Buick Skylark 2.4L 1996-1998

Cadillac 60 Special 4.9L 1993

Cadillac Commercial Chassis 4.5L 1990

Cadillac Commercial Chassis 4.9L 1991-1993

Cadillac DeVille 4.5L 1990

Cadillac DeVille 4.9L 1991-1995

Cadillac Eldorado 4.5L 1990

Cadillac Eldorado 4.9L 1991-1993

Cadillac Fleetwood 4.5L 1990

Cadillac Fleetwood 4.9L 1991-1992

Cadillac Seville 4.5L 1990

Cadillac Seville 4.9L 1991-1993

Beretta 2.2L 1992-1996

Beretta 2.3L 1991-1994

Cavalier 2.2L 1992-1997

Cavalier 2.3L 1995

Cavalier 2.4L 1996-1998

Corsica 2.2L 1992-1996

Corvette 5.7L 1992-1996

Lumina 2.2L 1993

Malibu 2.4L 1997-1998

Geo Storm 1.6L 1990-1993

Geo Storm 1.8L 1993

Honda Passport 3.2L 1994-1997

Isuzu Impulse 1.6L 1990-1992

Isuzu Impulse 1.8L 1992

Isuzu Rodeo 3.2L 1993-1995

Isuzu Stylus 1.6L 1991-1992

Isuzu Stylus 1.8L 1992

Isuzu Trooper 3.2L 1992-1995

Oldsmobile Achieva 2.3L 1992-1995

Oldsmobile Achieva 2.4L 1996-1998

Oldsmobile Cutlass Calais 2.3L 1991

Oldsmobile Cutlass Ciera 2.2L 1993-1996

Oldsmobile Cutlass Supreme 2.3L 1991

Pontiac Grand Am 2.3L 1991-1995

Pontiac Grand Am 2.4L 1996-1999

Pontiac Grand Prix 2.3L 1991

Pontiac Sunbird 2.0L 1992-1994

Pontiac Sunfire 2.2L 1995-1997

Pontiac Sunfire 2.3L 1995

Pontiac Sunfire 2.4L 1996-1998

  • 1.Please Make Sure It Fit Your Vehicle Before Your Purchase By Reference The Part Finder Function.
  • 2.OEM:PR92 PR4087 17091410 8170914100
  • 3.Item-included: Fuel Injection Pressure Regulator*1
  • 4.Inspection of fuel Pressure Regulator Operation: Use an oil pressure gauge to measure the gasoline pressure when the engine is idling, then unplug the vacuum hose from the gasoline pressure regulator and check the gasoline pressure. At this time, the gasoline pressure should increase by about 50kPa. If the pressure change does not meet the requirements, the gasoline pressure regulator is not working properly and should be replaced.
  • 5.Regulators-Built to strict quality control standards, 1 years warranty, hassle-free return and money back policy, buy with confidence!

ACDelco 214-2156 Professional Fuel Injection Pressure Regulator

ACDelco

Based on 51 reviews Check latest price

Product description

An ACDelco Professional, premium aftermarket Fuel Injection Pressure Regulator is the high quality replacement ideal for many vehicles on the road today. It is a mechanical valve that controls the fuel pressure in the fuel injector rail. The spring-loaded valve returns excess fuel back to the fuel tank. This premium aftermarket replacement fuel injection pressure regulator is manufactured to meet your expectations for fit, form, and function.

  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function

User questions & answers

Question: Has acdelco changed the color, the one i received is thin black rubber, versus the thicker red i am used to. did i get a knock off or is this legit
Answer: This check valve is designed to be mounted vertically, with outflow from a sump directed upward, and the valve flap closing slowly to prevent backflow from above. Gravity must play a role in the efficient operation of this valve, and I am not sure it would function as you wish in a reverse orientation. I would contact the manufacturer. By the way, the valve has worked beautifully all summer long after its initial installation.
Question: Amazon says this fits my vehicle engine. My engine has been changed from fuel injection to carburetor. Will it still work
Answer: Per manufacturer, no. But I would put the hinge up so the flapper has gravity working with it.
Question: this fuel pressure regulator is different then the orginal one it is black rubber with out the tappered bottom part the bottom is flat. Will it work
Answer: Lumnie, This check valve will work with an ejector pump. Assuming this is for sewage application, you might need a reducer for the discharge pipe. This check valve is meant for 1-1/2" applications, while most sewage/ejector pumps have a 2" discharge line. If you have any more questions, feel free to ask! -Raybend Customer Service
Question: Does it come with o rings for the fuel rails too
Answer: Yes, it’s got lots of spaces and the main compartment is big enough to put diapers in and other baby stuff. The main pocket is for baby bottles.

HIMIKI Fuel Injection Pressure Regulator 0928400535 97728979 works with 2001 2002 2003 2004 01 02 03 04 Chevy GMC Duramax LB7 C4500 C5500 Kodiak Topkick Silverado Sierra 2500 HD 3500 6.6L Diesel CP3

Based on 10 reviews Check latest price

Product description

Fit for

2003-2004 C4500 Kodiak 6.6L Diesel LB7

2003-2004 C5500 Kodiak 6.6L Diesel LB7

2001-2004 Silverado 2500 HD 6.6L Diesel LB7

2001-2004 Silverado 3500 6.6L Diesel LB7

2003-2004 C4500 Topkick 6.6L Diesel LB7

2003-2004 C5500 Topkick 6.6L Diesel LB7

2001-2004 Sierra 2500 HD 6.6L Diesel LB7

2001-2004 Sierra 3500 6.6L Diesel LB7

2001-2004 Duramax LB7 

  • Replacement Number: 0928400535 97728979
  • Fits for 2003-2004 C4500 Kodiak 6.6L Diesel LB7,2003-2004 C5500 Kodiak 6.6L Diesel LB7,2001-2004 Silverado 2500 HD 6.6L Diesel LB7
  • Fits for 2001-2004 Silverado 3500 6.6L Diesel LB7,2003-2004 C4500 Topkick 6.6L Diesel LB7,2003-2004 C5500 Topkick 6.6L Diesel LB7
  • Fits for 2001-2004 Sierra 2500 HD 6.6L Diesel LB7,2001-2004 Sierra 3500 6.6L Diesel LB7,2001-2004 Duramax LB7
  • High Quality, 12 Months Warranty, Welcome to Contact Us if Any Problems.

Standard Motor Products PR351 Fuel Pressure Regulator

Standard Motor Products

Based on 28 reviews Check latest price

Product description

Robust engineering design provides greater resistance to leakage. Application-specific to ensure the proper fit and form. Precision-engineered pressure regulators for proper fuel delivery and engine performance. As a global manufacturer, we have complete control of the manufacturing process, from components to finished product?.

  • Country Of Origin : Mexico
  • The Package Height Of The Product Is 2.36 Inches
  • The Package Length Of The Product Is 4.61 Inches
  • The Package Width Of The Product Is 3.32 Inches

User questions & answers

Question: where would i acquire the other pressure range springs
Answer: I installed it on my existing 1/3 hp pump and it's working fine. All you will hear is an almost imperceptible "click" when it shuts off. I hIghly recommend it.
Question: Could I thread in 1/2npt into the feed and 3/8npt into the return
Answer: yes, the 11/4 or 11/2 style one you can turned around the rubber adapter to fit 1 1/4" or 1 1/2" pvc pipe.
Question: will this work on a 2004 2500hd 6.0 v8 4x
Answer: It is a swing assisted spring. I put it on a very high use sump pump and it has held up well!
Question: Will this fit my 2002 chevy silverado
Answer: It's about 8.5 inch
Question: Why won't this item ship to my home address
Answer: Not sure what you mean by "fold" but the rubber portions are maleable to accomodate/accept other piping.
Question: Does this fit the Z71 family of Chevies (these vehicles have a ‘Z’ in the 8th position of the VIN) (btw- mine is a 5.3L flex-fuel)? If not, which is
Answer: This check valve is rated at 20 P.S.I. max, which will offer you up to 50 feet of lift.

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