12 best pump motors

Pump motors are a crucial component in various boating and water-related applications, primarily in the context of boating and sailing. These motors are responsible for powering pumps that move water in and out of different systems and compartments within boats and other watercraft. Here's what you should know about pump motors in the context of boating and related activities:

  1. Bilge Pump Motors: Bilge pump motors are commonly used on boats to remove water that accumulates in the bilge, which is the lowest compartment of a boat's hull. These motors are essential for maintaining the boat's buoyancy and preventing it from taking on water. They are typically designed to be compact and efficient.

  2. Ballast Pump Motors: In some boats, especially those used for water sports like wakeboarding or wake surfing, ballast systems are installed to adjust the boat's weight distribution. Ballast pump motors are responsible for filling and emptying ballast tanks to achieve the desired hull weight and shape for optimal performance.

  3. Livewell Pump Motors: In fishing boats, livewell systems keep caught fish alive until they can be released or brought to shore. Livewell pump motors are used to circulate water through the livewell to provide oxygen and keep the fish healthy.

  4. Water System Pumps: Boats often have various water systems, such as freshwater supply and waste disposal. Pump motors are used in these systems to supply water to faucets, toilets, and showers, as well as to remove waste water from the boat.

  5. Maintenance and Reliability: Pump motors in the boating context must be reliable, as they play a crucial role in ensuring the safety and functionality of the vessel.Regular maintenance is essential to prevent pump motor failures that can lead to water ingress or other issues.

  6. Power Sources: These motors can be powered by the boat's electrical system, typically through direct current (DC) power sources, or by specialized marine batteries. The choice of power source depends on the specific application and boat design.

  7. Water Type: Marine environments expose pump motors to saltwater or freshwater conditions. It's important to choose pump motors that are suitable for the type of water they will encounter to prevent corrosion and other issues.

  8. Installation and Compatibility: Proper installation and compatibility with the boat's systems are crucial. Pump motors should be correctly sized and positioned to ensure optimal performance and safety.

  9. Safety and Emergency Use: Pump motors are considered critical equipment on boats, especially for emergency situations like flooding. Understanding how to operate them and having backup power sources or manual alternatives is essential for boaters.

In summary, pump motors are essential components in various systems on boats, ensuring proper water circulation, bilge maintenance, and overall functionality. Proper maintenance, sizing, and compatibility are key factors to consider when dealing with pump motors in the context of boating and water-related activities.

Below you can find our editor's choice of the best pump motors on the market
  

Century USQ1102 1 HP, 3450 RPM, 1.25 Service Factor, 48Y Frame, Capacitor Start/Capacitor Run, ODP Enclosure, Square Flange Pool Motor

Century

Based on 196 reviews Check latest price

Product description

Pool motor, 50-Degree C ambient temperature, 303 stainless steel threaded shaft.

From the Manufacturer

The A.O. Smith one horsepower square flange up-rated replacement motor for swimming pool pumps has a threaded shaft and fits most pumps that require a square flange motor. It operates on both 115 and 230-Volts. The USQ1102 is compatible with Sta-Rite Dura-Glas, Dura-Glas II, Max-E-Glas, Max-E-Glas II, Dyna-Glas, and Max-E-Pro pumps, Hayward Max-Flow II pumps, and Pentair Whisper-Flo, Challenger, and Ultra-Flow pumps.

  • 1 HP
  • 3450 RPM
  • 115/230 volts

User questions & answers

Question: can this item be sold in Florida
Answer: Check the frame size and voltage
Question: What is the distance from the face of the flange to the back? I have 13" clearance only and I want to know if it fits
Answer: I bought a USQ1202 for a pool pump, it is a 2 hp.
Question: This is for my pool and I am replacing current motor with exact same. Does this come with all the o rings etc needed
Answer: I believe all the square mounts are interchangeable.
Question: Good reviews ... does this come prewired for 230V or 115V
Answer: Check the bolt pattern that it matches the pump unit. If the old unit has the same HP and revolution rate you should be in good shape. Remember to replace the seal with a new one also available on Amazon. Remember the threads are reversed. I used the Century to replace an A.O. Smith k48m2pa104a3. Good Luck.

Century USQ1202 2 HP, 3450 RPM, 48Y Frame, Capacitor Start/Capacitor Run, ODP Enclosure, Square Flange Pool Motor

Century

Based on 199 reviews Check latest price

Product description

A.O. Smith USQ1202 2HP 3450 RPM 48Y 230V Frame Square Flange Pool Motor

  • 2 Hp
  • 3450 Rpm
  • 230 Volts.10.4 max Amps
  • Country Of Origin: United States

User questions & answers

Question: Will this fit a Pentair 011519 2hp
Answer: The hose I have is brown in color
Question: The photo show 3/4 hp yet the product info states 2 hp? Please advise
Answer: Hi there, that is exactly why we ordered this one & not the traditional colors in store.. It is a bronze sparkly brown color. Hope this helps
Question: Will this replace us motor k63cxetp-4821 square mount
Answer: No it is not . You would need to buy one that is specifically made for potable water.
Question: Will this motor replace an a.o. smith k48m2pa105 used on a pentair p6ea6g-207l max-e pro
Answer: Couplings are not brass. They are aluminum.

Puri Tech Replacement Motor Kit for Hayward Super Pump 1.5 HP SP2610X15 AO Smith UST1152 w/GO-KIT-3

Based on 166 reviews Check latest price
  • Replacement Motor and Seal Kit for Hayward Super Pump 1.5 HP SP2610X15
  • Includes 1x Puri Tech UST1152 Motor
  • Motor Includes 18 Month Warranty
  • GO-KIT-3 includes :G-95 Housing Gasket O-141 Diffuser Gasket O-177 Lid Gasket AS-1521 Seal
  • Single Speed 115/230 Volts 18.6/9.3 Max Amps 1.00 Service Factor Threaded Shaft 56J Frame 3450 RPM 60 HZ

User questions & answers

Question: Will this work on Hayward sp2300vsp
Answer: If you have a square head to attach to the filter it will work however mine died after 30 days of being installed and still trouble shooting the issue. It is a difficult return.
Question: Does this fit SP2615 Pump housing
Answer: What I did was, look at the numbers on the motor that needed to be replaced, & matched it to the specs of the one I purchased....e.g.; rpm speed, 56y, square flange, amps,,,, these have to match ur pool pump setup, otherwise it'll cause much hassle & modification to ur existing setup....hope this helps u in some way...
Question: Will this motor fit hayward pump model # sp3010x15az
Answer: per the lable on the motor, "Made in China".
Question: Will this work on xstream model cc15093s
Answer: yes, this is a 1.5hp single speed square flange pool pump motor.

Product features

Puri Tech Replacement Motor Kit for Hayward Super Pump 1.5 HP SP2610X15 AO Smith UST1152 w/GO-KIT-3

Single Speed 60HZ

115/230 Volts

18.6/9.3 Max Amps

1.00 Service Factor

Threaded Shaft

56J Frame

3450 RPM

A.O. Smith B2852 3/4 HP, 3450 RPM, 1 Speed, 230/115 Volts, 5.4/10.8 Amps, 1.25 Service Factor, 56Y Frame, PSC, ODP Enclosure Square Flange Pool Motor

A.O. Smith

Based on 101 reviews Check latest price

Product description

Common applications are: pool and spa pumps, -Inch1081-Inch low service factor.

  • 3/4 HP.303 stainless steel shaft
  • 3450 RPM
  • 230/115 volts

User questions & answers

Question: i am not seeing an actual model #. i do see a.o. smiith century pool and spa motor 1081, part o-173840-23. should this fit
Answer: Mine was set for 115
Question: Need to replace BX2-205 (serial #) will this pump work
Answer: 1 year after purchase..
Question: Looking to replace serial 7- 187400 -20, 56CZ frame. Thanks
Answer: Yes, You should always use a new seal when replacing the motor.
Question: need to replace Pentair Superflo motor # 177474. Will this motor replace it
Answer: Both have the same size square flange. 56Y motor body diameter is 1/2" larger than 48Y48Y ships with a rubber spacer if neededBody diameter is the only difference-square flange is exactly the same48Y is common to Sta-Rite pumps|56Y is common to Pentair & Waterway pumps

A.O. Smith Century B2843 Square Flange 2HP 3450RPM Single Speed Pool Pump Motor

A. O. Smith

Based on 18 reviews Check latest price

Product description

As a Century (formerly A.O. Smith) pool and spa motor customer, you can relax knowing that our high quality, dependable Century motors are available for almost every application you'll encounter. Century offers the most complete line of pool and spa motors in the industry. Also, we have more new and innovative designs on the way. Century pool motors are the leading replacement choice by consumers everywhere! ---------- **This B2843 Pool/Spa Motor features:** - 2 HP - 3450 RPM - 208-230 Volts - 1.30 Service Factor - 56Y Frame This motor is backed by a 1 Year VMInnovations Warranty. We are an Authorized Century (formerly A.O. Smith) Dealer!

  • Century replacement motor for your pool or spa pump
  • Single speed motor designed for 2 horsepower offers plenty of pumping power
  • Model B2843 is commonly used on Pentair WhisperFlo pool and hot tub pumps
  • E-Plus energy-efficient design
  • Features a square flange and threaded shaft

User questions & answers

Question: Is that a reversed threaded shaft
Answer: Yes. My old one was shot, and it took me an hour to figure that out (I’m embarrassed to admit)
Question: Will this work for hayward sp 3220z1be model
Answer: Only if the Hayward pump uses a square flange motor.
Question: is this an E-Plus energy efficient model
Answer: I believe it is. Working good for me.
Question: Is this a two speed
Answer: This motor is a 220v single speed.

Polaris PB4-60 OEM Booster Pump 3/4 HP for Pressure Pool Cleaners PB460 180-480

Polaris

Based on 912 reviews Check latest price

Product description

The Polaris PB4-60 Booster Pump gives your pressure side pool cleaner a dedicated supply of pressure that allows it to clean the pool effectively. The PB4-60 Booster Pump includes an installation kit which comes with four connectors and six feet of soft tube hose. The booster pump is not self-priming, so it should only be in operation while your main circulation pump is running.This booster pump runs at 3/4HP and 115/230V and draws 12.8/6.4 Amps respectively. You can use the Polaris PB4-60

  • Booster pump for pressure side pool cleaners
  • Includes booster pump, pump stand, and installation kit
  • High Efficiency 3/4 HP motor, 230/115 volts
  • For use with the Polaris 280, 380, 3900 Sport, 180 and 480 PRO cleaners
  • Stainless steel hardware

User questions & answers

Question: Does this pump support Polaris
Answer: My order can with the fittings for 3/4" and ~ 4' - 6' of hose
Question: What does OEM mean
Answer: Motor hp and pump impeller are matched. You could possibly use a motor with more hp but it doesn't necessarily mean that you can improve pump capacity.
Question: are you an authorized polaris pump seller, so I can claim warranty in case of defect
Answer: No
Question: Does it come with necessary fittings (3/4"), etc, for installation
Answer: This is new already mine was

Product features

Properly Powered for Maximum Efficiency

For best performance, always power your Polaris pool cleaner with a Polaris booster pump. Polaris booster pumps are specifically designed to operate Polaris pressure-side pool cleaners at optimum power and cleaning efficiency.

Designed to Help You Save

Industry leading design ensures compatibility with today’s energy efficient filtration pumps.

Easy Installation

Includes Quick Connectors and Softube hose for easy installation.

Century UST1102 1-Horsepower Up-Rated Round Flange Replacement Motor (Formerly A.O. Smith)

Century

Based on 696 reviews Check latest price

Product description

Pool motor, 50-Degree C ambient temperature, 303 stainless steel threaded shaft.

From the Manufacturer

Century Electric (Formerly A.O. Smith) one horsepower round flange up-rated replacement motor for swimming pool pumps has a threaded shaft and fits most pumps that require a round flange motor. It operates on both 115 and 230-Volts. The UST1102 is compatible with Hayward Super, Super II, and Max-Flow pumps, Jacuzzi Magnum pumps, and Pentair Pinnacle pumps.

  • High-quality, super efficient replacement motor
  • Corrosion-resistant outer shell
  • Round flange design. RPM = 3450
  • Easy wiring access

User questions & answers

Question: does this replace the hayward super pump 1hp motor mod#C48k2n143b1,Frame56J
Answer: Yes
Question: Is it the same as a square flange
Answer: Yes the Seal plate and Motor mounting plate are in picture shown together but actually 2 pieces.
Question: does this replace the hayward super !! pump modesl K48L2N
Answer: Not sure. I just did some research on Google & found the one that fits our model. Might want to e-mail the seller directly. I'd hate to give you misinformation. Sorry I couldn't be of more help.
Question: Will this replace my A.O. Smith C48K2N143B1, 1HP, 115/230 volts, RPM 3450, FR 56J, AMB 50, ODP ENCL, Code J
Answer: I would try it

XtremepowerUS 2HP Inground Pool Pump 220V Dual Speed

Based on 688 reviews Check latest price

Product description

XtremepowerUS 2HP Swimming Pool Pumps deliver outstanding performance and reliability at a fraction of the price of the big name brands Heavy-duty construction and advanced engineering provide high efficiency and quiet operation. XtremepowerUS Pool Pumps are designed and manufactured to meet all CSA and ETL requirements. Features: Powerful Pool Pump heavy-duty, high-performance motor with air-flow ventilation for quieter, cooler operationEasy start up fill pump with water upon first use to prevent motor from overheatingAn extra-large debris basket keeps pool maintenance to a minimum, letting you enjoy your pool more, while the clear cover lets you see exactly when the basket needs cleaningThis Swimming Pool Pump has a ETL/UL Certification to ensure recognized Standards for SafetyHigh Efficiency Impeller maximize flow and reduce noise while the energy efficient motor with commercial-grade frame; Inlet / Outlet 2" NPTThermally protected motor for greater protection and longevityIntended for use with swimming pools, hot tubs, and spas; Not for sale in CaliforniaSpecifications: Type: Electric Pool PumpColor: BlackPhase: SingleMaterial: PPGF30 + PCPower: 2HPVoltage: 230vAmps: 15 RPM: 3450Max Flow: 5820GPHInlet/Outlet Fitting: 2" NPTMax Temperature: 104FWaterproof Level: IPX5Certification: CSA and ETLHardware Required: YesPackage Contents: Electric Pool PumpManualWhen installing, please consult qualified professional2pc-Union Fitting Sold Separately

  • Power source type: Corded Electric

User questions & answers

Question: is this pump 230v
Answer: This pump will work with 230VAC power supply. The motor is specified as 110VAC/220VAC, however 115VAC/230VAC is within the rating tolerance and would be a situation which would be expected to be encountered in normal line fluctuations.
Question: Hadit installed no pressure
Answer: The basket strainer is not seated properly so the lid doesn’t seal. The lid is not sealed. No gasket in the lid. Intake fitting leaks. Get the installer back.
Question: where do you find the pump curves for this
Answer: By curves I take it you mean the pvc connections that go into the threaded part of the pump. I found mine at my local hardware store, but I would think Lowe's or any place that sells pvc pipe connectios would be able to help. It took a 11/2 inch fine threaded male fittingto fit the pump and 11/2 pipe union for the rest of my connections. Check your lines to make sure of the size that you have on your old pump and buy fittings for that size. Hope this helps.
Question: is this self priming
Answer: Yes it's self priming

Product features

XtremepowerUS In/ Above Ground Pool Pump

The XtremepowerUS self-priming pool pump is constructed with corrosion-proof polymeric material to be longer lasting and highly durable. Built to have a high-performance motor with airflow ventilation for quieter noise and smoother run-time experience.

Compatible with Different Brand or System you have before

The XtremepowerUS pool pump designed compatible for use with solar heating and in-floor cleaning systems and easy setup new build pool system or replace to your pool cleaning system you have before,

Waterway Plastics 3722021-1D Executive 56 Frame 5 Horsepower Spa Pump, 230-Volts

Waterway Plastics

Based on 110 reviews Check latest price

Product description

WTRWY 3722021-1D EXECUTIVE 5HP 2SP 2"X2" 56FR SD. Two double shielded ball bearings with moisture resistant grease for quieter operation and longer life. Two speed motors have four sets of insulated windings for high performance. Large 2 ½" intake for improved flow performance and reduced noise. Large 6 ½" diameter wet end for higher head pressure. Split capacitor, (start and run) for less energy consumption. Thermally protected to extend life expectancy of motor

  • Side discharge
  • Two double shielded ball bearings
  • Four sets of insulated windings
  • 2" intake
  • 6-1/2" diameter wet end

User questions & answers

Question: Can the wet head be rotated to the vertical position
Answer: The Discharge can be rotated every 90- degrees by loosening the four long bolts at the back end of the motor. When tightening, use a light hand tight.
Question: why does it say; weight: 2lbs
Answer: I have replaced BOTH pumps in my hot tub with these now. they are a bit longer than the originals but work great and they are VERY heavy.
Question: How many wires are on this pump 3 ? Black white and green
Answer: There are no wires. There is a plate that you remove to get to the connector screws. There is a simple wire diagram stamped on the motor near this location. This is a 220v motor so you will have 2 hot legs (110v), one common ground and a green screw on the motor to connect your bare (non-insulated) ground wire.
Question: Is this double insulated for in ground pools? Can't find one anywhere
Answer: Not sure, we bought it for a hot tub.

KL KEY LANDER Hot Tub Spa Pump, 1.5HP, Two Speed, 48Frame LX Motor (115V/60Hz); 2" Port; OEM Model #37334-03; 48WUA1001C-II

Based on 105 reviews Check latest price

Product description

Replacement OEM Model # 37334-03 & 48WUA1001C-II. Please pay attention to Amp draw, Voltage and the size of intake & discharge.

Center Intake & Side Discharge: The pump discharge is at 12:00 position and it can also be rotated every 90-degrees (3:00 or 9:000 position).

Two sets of 2 inches unions are included. But the unions from different factories might be a little different, so please use our unions for better seal.

This pump can replace the ones from those popular pump suppliers and please verify Amp draw, Voltage and the size of intake & discharge.

Maximum Operation Pressure: 0.3Mpa; Maximum Flow Rate: Up to 122 GPM.

  • 1.5HP, 2 Speed Pump, 48 Frame, 115V/60Hz input;10.3A (High Speed), 3.8A (Low Speed), UL, CUL, ETL Certified;
  • Excellent quality copper winding Motor for cooler operation; Thermal Protector from Texas Instruments; Two sets of 2" union included;
  • Excellent quality capacitor compliant with our strict tests: Water-Proof Test, High Pressure & Hot Water Test, 80,000 Charge and Discharge Cycle Test, and 500V AC Impulse Test
  • Viton/ Silicon Carbide/ Graphite Seal: Resistant to High/Low temperature; Corrosion Resistant; High Hardness for Durable & Reliable performance.
  • Anti-Creep Bearing with high temperature grease oil to ensure quiet operation.

User questions & answers

Question: will this replace magnetek century laser pool/spa motor 1081/1563 pump duty 7-184834-02 or is this too small
Answer: 48WUA2002C-II is a 2 Speed Pump, 48 Frame, 10A (High Speed), 3A (Low Speed); 230V/60Hz input with 2 inch unions included. Please verify your current pump: 48 Frame, 230/60Hz; 11.0/3.3Amps, 2 inch port. If yes, our 48WUA2002C-II should be compatible with your current pump.
Question: I need to replace my Balboa 1014253 spa pump. I ordered this one but had to return it because the pump will not fit due to the capacitor on top
Answer: Please log in your account and contact Amazon for return because all the process has to be processed by Amazon. In the future purchase, please look carefully at the size which we shown on the website. Thanks.
Question: Will this replace Relia-flo
Answer: Yes, it can. Your original pump should be 48FR, Single Speed, 2.0HP, 8.0 Amp, 230V/50Hz. Our 48WUA1502C-II is 2 Speed Pump, 48 Frame, 8A (High Speed), 2.6A (Low Speed); 230V/60Hz input with 2 inch unions include. You just connect the high speed following the wiring diagram on the motor and it should be ok.
Question: Would this replace a Aqua-Flo
Answer: 48WUA1001C-II (48Frame, 115V/60Hz, 10.3A/3.8A) can't replace your Aqua-Flo 06614510-2. But, our another model: 48WUA1501C-II should replace yours. 48WUA1501C-II is a 48Frame, two speeds pump with 115V/60Hz, 13.8A @ High Speed & 3.8A@ Low Speed, 2 inch unions included. Your current one should be 48Frame,115V/60Hz,15A @ High Speed & 3.9A@ Low Speed. The performance of those two pumps should be very close.

A.O. Smith B2853 1 HP, 3450 RPM, 1 Speed, 230/115 Volts, 6.6/13.2 Amps, 1.25 Service Factor, 56Y Frame, PSC, ODP Enclosure, Square Flange Pool Motor

A.O. Smith

Based on 253 reviews Check latest price

Product description

Common applications are: pool and spa pumps, -Inch1081-Inch low service factor.

  • 1 HP
  • 3450 RPM
  • 230/115 volts
  • 6.6/13.2 Amps

User questions & answers

Question: will this replace an ao smith 7-177474-01 p56Y
Answer: Primarily, what you see, is the diameter of the motor housing. 56y is larger. You can get the same power capability out of either but whether the motor will mount to your pump properly is the question. And a 1 hp with a service factor (sf) of 1.25 is not the same as a 1 hp with a service factor of say 1.65. You need to multiply the hp by the service factor for each motor to get comparable ratings. 1hp x 1.25sf =1.25; 1hp x 1.65sf = 1.65, not the same. 1hp x 1.65sf = 1.65; 1.5hp x 1.1sf = 1.65, same.
Question: Could this be used outdoor without cover from the rain
Answer: I am a Pool Pro, I personally have tried to install this very pump from XtremepowerUS. I was to be paid $75 for the install. Well it took me all day to install, and was called back in under a week because the pump stopped working. This thing was the WORST experience of my career! I WILL N E V E R ATTEMPT TO INSTALL ONE OF THESE $170 PUMPS EVER, E V E R AGAIN!
Question: Is there a difference between y 56 y and 56y
Answer: Not sure about warranty, but you need to know some electrical since it does not come with cord attached.
Question: what is the difference between 48y and 56y frame on a 1 hp 2 speed motor
Answer: This is only a one speed and it only last me about 3 days and then it blew up and water went everywhere.

Waterway Executive Spa Pump Side Discharge 56-Frame 2 Inch 3.0 Horsepower 230 Volts 2-Speed 3721221-1D

Waterway

Based on 49 reviews Check latest price

Product description

The Waterway Executive 56 - 3HP Dual-Speed 56 FR Spa Pump, 2" Intake, 2" Discharge, 230V - spa pump has increased efficiency with its 2-Speed design.. With its 56-Frame construction, the Executive spa pump features a cooler operating temperature which delivers added strength and a longer motor life. With features such as a large 2" intake for better water flow, a split capacitor for minimum energy consumption, highly versatile wet end can be rotated every 90, and Viton seals for durability, this

  • Executive wet end designed specifically for 56-frame motors
  • Two double shielded ball bearings with moisture resistant grease for quieter operation and longer life
  • Two speed motors have four sets of insulated windings for increased efficiency
  • 56-frame motor for added strength, cooler operating temperature, and longer motor life
  • Larger 2" intake for improved flow performance and reduced noise

User questions & answers

Question: What does the plug look like? Wondering if it will have to be rewired with my old plug or not
Answer: use you old plug. outlet thread O.D. measures 3.1" thank you, pumpwarehouse
Question: What’s the overall length of the pump
Answer: 16-1/2 inches
Question: will this pump fit in my Marquie spa
Answer: I am not sure, I put it in a diamond back spa.
Question: Will this pump work in a hot tub and get good strong pressure for back relief
Answer: We haven’t gotten into the tub yet because it’s too hot but the pressure from the jets appears very strong. We have a 4-8 person Jacuzzi.

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