3/4 HP 2 Speed 115V Thru Bolt Motor - BN36



Part # BN36

By Magnetek

  5 Average  



Part # BN36

Alternate Part #'s 10-177781-02, 12562, 158923, 159860, 159963, 164007, 164076, 164085, 164248, 164249, 164312, 164460, 164613, 164798, 164854, 164905, 164922, 165361, 165377, 173415, 177388, 177781, 181326, 182273, 182712, 182713, 182834, 182990, 186100, 186554, 196295, 1D159, 317P279, 317P289, 317P293, 317P380, 35-6481, 35-6485, 4405120408, 5KC33NN2899X, 5KC39JN2895X, 5U145, 7-159963-01, 7-159963-02, 7-177781-02, 7-181326-01, 7-181326-02, agl75fl2, B022, B024, B028, B036, BN-36, BN024, BN24, BN36, BO22, C1277, C1278, C1322, C1453, C1902, C48A02A24, C48K2A15, CBS2072, H639, H909, M-181, M-191AG, M-197AG, MTG-H639, S48A12A24, S48J2A14A2, S48K2A10, S48K2A10A1, S48K2A10A2, S48K2A10A3, S48K2A10A4, S48K2A15, S48K2A15A1, S48K2A15A2, S48K2A15A3, S48K2A21, S48K2A2A4, S48K2A2A7, S48K2A2A8, S48K2A3, S48K2A30, S48K2A30A1, S48K2A30A2, S48K2A31, S48K2A32, S48K2A32A1, S48K2A32A3, S48K2A38A1, S48K2A42, S48K2A43, S48K2A44, S48K2A44A1, S48K2A44A2, S48K2A45, S48K2A45A1, S48K2A45A2, S48K2A45E1, S48K2A5, S48K2A5A2, S48K2A5A3, S48K2A5A4, S88-554, SP1510Z2E, SP1510Z2EK5, SPL75FL2, SPX1510Z2E

Product Description

Application: Above Ground Pools & Spas Replaces: Sta-Rite, Hayward, American Products, Hydra Bath, Pac Fab, Jacuzzi, Doughboy, Etc... Features: All copper windins, Auto protector, Open drip proof, Stainless steel threaded shaft, Thrubolt pump mount, "1081" design, 60 HZ , 115V, H.P = 3/4 High Speed .10 Low Speed, Full load Amps = 8.8 High speed 2.1 Low Speed, Frame 48Y, Threaded Shaft



Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

Motor Name:
0.75 HP BN36 & BN36SS Replacement Pool Motor
75/ .1 HP
3450/1725 RPM
115 V
8.8/2.6 amp
Service Factor:
Total HP:
0.75 HP
Stock #:
BN36 or BN36SS
Overload Protector:
Dimension Letter:
12.08 in.
Commonly Used On:
Sta-Rite, Hayward, American Products, Hydra Bath, Pac Fab, Jacuzzi, Doughboy

?     Asked on 10/19/2018 by

I have a Speck Model E-71 pump (ProLine-branded, current motor PE71-II-H) and I want to downsize it to 3/4 HP because the motor is obviously oversized for my 15k gallon pool and 75 GPM filter. Will this motor fit? I will need the shaft seal Mechanical Seal 5/8" - 2921606204 and Impeller, E-75-i, 3/4 Hp (2921923096)? I can do the 2-speed wiring. Thanks!

A     Answered on 10/19/2018 by InyoPools Product Specialist Lennox H.

Hi. Yes, those following parts are correct for reducing the pump's horsepower. For the dual speed motor, you will need the Two-Speed Toggle Switch Assy. - Lo/Off/Hi - 18313301 which includes wiring instructions. 

?     Asked on 9/7/2018 by jeff

does this motor replace the 1 hp motor for my jacuzzi cfr50 above ground pool filter

A     Answered on 9/7/2018 by InyoPools Product Specialist Lennox H.

Hi, Jeff. We're unable to confirm with the Part, Model or Cat number from off of the existing motor. 

?     Asked on 6/2/2018 by dan

hi can i replace part #7-193233-02 withmotor part # 7-177781-02 ty

A     Answered on 6/2/2018 by InyoPools Product Specialist Lennox H.

Hi, Dan. Unfortunately, those motor are NOT interchangeable. 

?     Asked on 5/26/2018 by Rose Musto

Thank you for your prompt reply. How can I tell if the impeller has not seized? Is there anything else I should check before replacing the motor? Also, if I were to replace the entire 355 pump, what would be a viable replacement. Thank you.

A     Answered on 5/28/2018 by InyoPools Product Specialist Lennox H.

Hi, Rose. You can manually turn the motor shaft to see if it turns freely. It if does not then the motor is seized. You can use the FMHP Pump - 02107000-1010 as an alternate replacement. 

?     Asked on 5/25/2018 by Rose Musto

We're using our 355 pool/spa pump for a garden pond and waterfall. It has done the job well. This spring, the pump would not turn on. It is also the first time we left it outside for the winter. I'm debating between purchasing a new pump or replacing the motor. My pump motor part number says - 7-177781-01. Will your 7-177781-02 work with it? Also what does 1081/1563 pump duty mean? Do you think it is worth replacing the motor or could something else be wrong? Thanks for your help.

A     Answered on 5/26/2018 by InyoPools Product Specialist Patrick P.

Hi Rose, I would suggest just replacing the motor as this really the only thing that goes wrong on the pumps. Yes the 7-177781-02 will replace your 7-177781-01 motor. 1081 mean that the motor is listed to the UL1081 safety standards for pool pump motors.

?     Asked on 5/22/2018 by Sue

Hi, We just got a used MagneTek Pool pump filter system for our 24' above ground pool. All of our pool stuff burned a barn fire, and I'm trying to figure out what I need to use the MagneTek filter. What size hoses, etc. I can't find much info on this system (we had a Hayward before). Any help you can give is appreciated!

A     Answered on 5/26/2018 by InyoPools Product Specialist Lennox H.

Hi, Sue. MagneTek only makes motors, not pump. If you have your existing pump housing, you can use the Flex Hose Kit, 6 Ft - 155151.

?     Asked on 4/9/2018 by Laura Segovia

hi i need a new motor, part # 7-177613-20 serial # BK6-23 Which one do i need? I cant find it anywhere, please help

A     Answered on 4/9/2018 by InyoPools Product Specialist Hector F.

The replacement motor would be the model BN24

?     Asked on 3/17/2018 by Michael Pipkins

Hello, I have a part # 7-177781-02 serial number 026093M. The motor has a high pitch squeal, I believe the bearing need to be replaced.

A     Answered on 3/19/2018 by InyoPools Product Specialist Kevin G.

Hello, you will two of the 5270-31 motor bearings. 

?     Asked on 12/16/2017 by poolboy

Is this a genuine AO Smith motor ? TIA

A     Answered on 12/18/2017 by InyoPools Product Specialist Lennox H.

Hi, Poolboy. Yes, this motor is manufactured by Century formerly A.O. Smith. 

?     Asked on 10/8/2017 by Bill

Our hot tub is leaking where the pump attaches to the motor, It is a 1 1/2 inch on center discharge pump and It appears to me to be one unit but I am not sure. The motor I am replacing is: Century B036, Part # 7-165361-01, RPM 3450/1725, volts 115, Model 225-728( the 8 may be a 5 or an S), Serial # 391282/L02, HP 3/4. Do you know if this unit is available with a 1 1/2 center discharge pump attached?

A     Answered on 10/9/2017 by InyoPools Product Specialist Lennox H.

Hi, Bill. You can use the Waterway Spa Pump (Center Discharge) - 342041015 as a replacement pump.

?     Asked on 5/29/2017 by

will this replace a jacuzzi pump Parts #10-186554-01

A     Answered on 5/29/2017 by InyoPools Product Specialist Patrick P.

Yes this is the correct replacement motor for a jacuzzi part #10-186554-01

?     Asked on 5/23/2017 by

Hi guys i sent in a question back in jan. of this year.about my new motor will not go from back to low speed after running on high. you mention the impeller might be getting stuck so i rebuilt the pump with a new housing and seals and it did again not right away but after being running. Is it possible the motor is just have a bad spot in the windings or is my impeller tighten down too much . Is there a amount you tighten the impeller too Please help I dont want to go all summer this way

A     Answered on 5/27/2017 by InyoPools Product Specialist Lennox H.

Hi. It is possible that the motor is bad causing the motor not to go from high to low speed and vice versa. The impeller should be hand tighten onto the motor shaft and should spin freely with little to no resistance.

?     Asked on 4/19/2017 by Toby

Hello I have a beat in 36 pump but it says that it is one horsepower and the only one you have is three quarter horsepower mine is a 2 speed do you have one like mine

A     Answered on 4/19/2017 by InyoPools Product Specialist Scott W.

What is your pump model?

?     Asked on 1/18/2017 by Terry Wilson

I bought this motor last summer to replace the one on my system, It worked great for around two months then it started to to get 'get stuck" when switching to the second speed. If I spun the shaft less than a quarter turn it would work. It finally got to the point where it doesnt do that . It is a hayward system for a hot tub can you tell what is wrong I drained the hot tub before fall and right now the unit is in my basement

A     Answered on 1/19/2017 by InyoPools Product Specialist Adam Y.

Good morning Terry, It sounds like the impeller is getting stuck/ jammed.

?     Asked on 11/8/2016 by Fred

I have a Waterway HiFlo single speed pump BN25 can I us this pump as a substitute? I would like to go to a 2 speed pump the dimensions are very close to each other. RPM on the BN25 is 3450 the BN36 has RPMs of 3450/1725. Will this pump work or can you suggest another pump motor? Thanks.

A     Answered on 11/8/2016 by InyoPools Product Specialist Scott W.

The BN36 would fit your Hi-Flo but going from a 1HP to a 3/4HP you would have to change the impeller as well to fit the horsepower.

?     Asked on 10/23/2016 by Lucy

Is this motor "full rated?"

A     Answered on 10/24/2016 by InyoPools Product Specialist Adam Y.

Good morning Lucy, This motor is not Full-rated it is a 2speed motor.

?     Asked on 10/23/2016 by Lucy

Is this motor "full rated?"

A     Answered on 10/24/2016 by InyoPools Product Specialist Adam Y.

Good morning Lucy, This motor is not full rated it is 2 speed. If you have any other questions feel free to ask.

?     Asked on 8/1/2016 by Don

Can I replace the capacitor? Do you sell them?

A     Answered on 8/6/2016 by InyoPools Product Specialist Lennox H.

Hi Don, We do not have the replacement capacitor for this motor.

?     Asked on 6/4/2015 by Paul Whelan

When I plug in the pump, the motor starts going very slow and then stops. I replaced the capacitor and it still does the same think. The dealer where I bought the new capacitor told me it was a run type. Is there another somewhere inside the motor?

A     Answered on 6/4/2015 by InyoPools Product Specialist Patrick P.

Hi Paul, Some motors have a run capacitor and a start capacitor however this BN36 motor only has a run capacitor. If you have a different motor then the BN36 let us know and we can determine if your motor has a start capacitor.

?     Asked on 5/31/2015 by

Model # on my pump is S7LGT9-3-LH. Will this motor work on my pump?

A     Answered on 5/31/2015 by InyoPools Product Specialist Alex V.

Hello, We will need more information. Please email us a picture of the existing motor label.

?     Asked on 1/18/2012 by Guest

I'm trying to find a replacement motor for my pool pump but my model number doesn't match what you have listed as the model number. My model number begins with a C48 and yours begins with an SP. Please help.

A     Answered on 1/18/2012 by InyoPools Product Specialist Patrick P.

What we have listed on our chart pages is the pump model number. The model number you have will just identify the motor. If you look on the plastic housing on the pump there should be a sticker which will have the pump model number. You can usually find this by the discharge port on the pump. Once you locate it you can choose the correct replacement motor. Be certain to change the shaft seal and gaskets as needed. You can use our >How to guide if you need help. 

?     Asked on 1/12/2012 by Guest

Why should I purchase a Tune Up Kit?

A     Answered on 1/12/2012 by InyoPools Product Specialist Patrick P.

A Tune Up Kit includes all of the essential replacement seals and gaskets for the pump. The seals and gaskets should be replaced when installing a new motor on your pump. New seals will prevent the pump from leaking water or losing the prime. A Tune Up Kit will protect your motor and ensure that the pump is working efficiently.

?     Asked on 1/12/2012 by Guest

Why do I need to purchase a new shaft seal?

A     Answered on 1/12/2012 by InyoPools Product Specialist Patrick P.

We strongly recommend replacing the shaft seal. The purpose of a shaft seal is to prevent water from running down the shaft of the motor and into the motor housing. Water will damage the bearings and cause the motor to fail. A new shaft seal should be installed whenever a motor is replaced. The motor manufacturer can deny the warranty if the motor fails to due to water damage from a faulty shaft seal. To find your shaft seal you will need to visit our Pool Pump Parts Page or the Spa Pump Parts Page and select your make and model.

?     Asked on 1/11/2012 by Guest

What is Service Factor?

A     Answered on 1/11/2012 by InyoPools Product Specialist Patrick P.

Service Factor(SF) is a multiplier that when multiplied by the horsepower of the motor indicates the total permissible horsepower loading that may be carried when the motor is operating at rated voltage and frequency. The most important thing to remember when replacing a motor is that the replacement motor's horsepower times its service factor must be equal to or greater than the original motor's horsepower times its service factor. The Service Factor rating can be found on the motor label. See Step 4 of our How to Read a Pool Motor Label guide.

?     Asked on 5/16/2007 by Guest

Can you replace single speed pump motor with dual speed pump motor?

A     Answered on 5/16/2007 by InyoPools Product Specialist Patrick P.

Yes but you can't go with a higher HP than the single speed motor. For example if you have a 1 HP single speed you cannot go with a 1.5 HP dual speed motor; you would be able to use a 1 HP dual speed motor. Customer would need to purchase a toggle switch or timer to switch from high speed to low speed.


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