Century 1.0 HP Square Flange Up Rate EE Motor - B863SE



Part # B863SE

By Century Motors

  4.82 Average  



Part # B863SE

Warranty 1 Year

Dimensions 13" L x 6.5" W x 6.5" D

Alternate Part #'s 11801, 1203165412, 177939, 177976, AE100EL, AE100ELL, B2661, B661, SQ210UE, AOSB2661, MGT-60-5146

Product Description

**NOTE: This B863SE is No Longer Available, it will be substituted with the B2661 - Century 3/4 HP Square Flange Full Rate EE Motor.**

Century Centurion replacement motors for Pentair WhisperFlo, energy efficient, up rated pumps. Specifications: HP = 1, RPM = 3450, Voltage = 115/208-230, Amps = 11.2/6.0-5.6, Service Factor = 1.25, Frame = 56Y, Shaft = Threaded.

**NOTE: This B863SE is No Longer Available, it will be substituted with the B2661 - Century 3/4 HP Square Flange Full Rate EE Motor.**

Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

Motor Name:
1 HP
1 HP
3450 RPM
115/230 V
12.6/6.3 amp
Service Factor:
Total HP:
1.25 HP
Stock #:
B863SE or B2661
Overload Protector:
Dimension Letter:
11 - 1/4 in.
Commonly Used On:
Sta-Rite Max-E-Glas, Max-E-Glas II, Dura-Glas, Dura-Glas II, Dyna-Glas, Dyna-Max Pentair Whisperflow, Pinnacle and Anthony AR2 Series
Energy Efficient:
Energy Efficient
Pump Model:
WF-24 & CFII-NI-1A
Whisperflo & Challenger

?     Asked on 11/14/2019 by Sean

I am replacing the motor on my Whisperflo WF-24 1hp serial 1-30-G03 just want to confirm this will work. Also how long is shipping typically? Thanks.

A  Answered on 11/15/2019 by InyoPools Product Specialist Lennox H.

Hi, Sean. This B863SE which has been replaced by the B2661 motor can be used as a replacement for the WhisperFlo WF-24 model pump. You will also need to get the Whisperflo Tune Up Kit - GOKIT32 or GOKIT32SALT. Motors will ship the same or next business days depending on when the order has been placed and usually delivered within 1-3 business days.

?     Asked on 2/4/2019 by

Is this the right motor for the Pentair CHII-N1-1A? The hp and sf match the motor I have.

A  Answered on 2/5/2019 by InyoPools Product Specialist Lennox H.

Hi. The correct replacement motor is the PL2853 or the B2853. You will also need the Challenger CH Series Tune Up Kit - GOKIT5

?     Asked on 5/21/2018 by

Do your motors carry a warranty?

A  Answered on 5/21/2018 by InyoPools Product Specialist Hector F.

Yes, these single speed motors carry the manufacturer's one year warranty which you can view the details here

?     Asked on 2/17/2018 by Paul Millar

I have the purex triton whisper flo model wf-4 c 1hp. Would this be compatiable?

A  Answered on 2/19/2018 by InyoPools Product Specialist Hector F.

You would actually want to use the model motor B841

?     Asked on 7/8/2017 by Steve Kramer

Is the 1 HP Motor EE - Up-Rate - B863SE motor a good replacement for the motor on Pentair pump WF-24C?

A  Answered on 7/12/2017 by InyoPools Product Specialist Patrick P.

Yes the B863SE which is now called a B2661 is the energy efficient replacement motor for the WF-24C. When replacing your motor we also suggest a Pentair Whisperflo Seal Kit.

?     Asked on 7/4/2017 by dirk

hello I have a Jandy pool pump system the pump is made by AO Smith 1hp SHPF 1.0 B863SE model # the problem I'm having is air getting into system, I have lubed the seal of the lid or pump filter gasket, I have tried everything to identify leak can find nothing could the pump be failing? the pump is 7 years old, the pump is quiet, but seems to be not turning over water properly. thankyou

A  Answered on 7/5/2017 by InyoPools Product Specialist Lennox H.

Hi, Dirk. A failing pump or motor will not cause an air leak. I would recommend using our How to Identify and Correct Air Leaks guide for more troubleshooting suggestions. 

?     Asked on 6/11/2017 by Terry

With what motor do I replace a whisper flo 24 c motor 1 hp service factor 1.25?

A  Answered on 6/11/2017 by InyoPools Product Specialist Hector F.

You can use this motor to replace that original model pump motor.

?     Asked on 6/5/2016 by vince

is this motor 1 hp EE replacement for pentair 177474

A  Answered on 6/5/2016 by InyoPools Product Specialist Patrick P.

Hi Vince, yes this is the energy efficient replacement for the Pentair 177474 motor.

?     Asked on 5/23/2016 by Clay Berryman

Is this the energy efficient option to replace a Pentair Part# 7-177474-01, Frame P56Y Type CX, Form KJM, Code J, Volts 230/115, AMPS 7.1/14.2, ENCL DP, Class B, Serial # 056083M? And what seal kit is recommended?

A  Answered on 5/23/2016 by InyoPools Product Specialist Matt S.

Clay, the B863SE is the compatible replacement for your B847 standard efficiency pool pump motor.

?     Asked on 2/27/2016 by Cruz Fontanez

I have a Whisper flow from Pent-air pump. I replace the pump motor about 3 years ago, now I got to replace it again. The one I have Is a model number, HSQ165, 1HP,115/230 Volts, amps 18.8/9.4,frame 48y. I like to put a Whisper flow pump motor on it, but I don't what kind I can buy. It's a Square flange. Thank You for all your help and have a nice day.

A  Answered on 3/3/2016 by InyoPools Product Specialist Lennox H.

Hi Cruz, Based off of the info provided the Pentair WhisperFlo OEM Motor WFE-4 1HP Almond would be the original Whisperflo motor.  That motor will have to be special ordered.I would also recommend getting the Pentair/Purex Whisperflo Tune Up Kit.

?     Asked on 11/21/2015 by Philip

I am wanting to replace a 1 HP Marathon 5KC38SN6084AX 3450RPM SF 1.5 with a 56Z frame. I don't see a 56Z frame as an option. What is compatible and what is the energy efficient version?

A  Answered on 11/23/2015 by InyoPools Product Specialist Lennox H.

Hi Philip, The 56Z frame has been replaced with the 56Y's. The A.O. Smith 1 HP EE Up Rate Motor will be the energy efficient replacement for the Marathon 5KC38SN6084AX motor.

?     Asked on 2/16/2012 by Guest

I just finished replacing the shaft seal on my booster pump. As soon as I turned the pump on water was leaking from the shaft seal. Is it defective or am I doing something wrong?

A  Answered on 2/16/2012 by InyoPools Product Specialist Patrick P.

Depending on the model, the installation of a booster pump shaft seal can be slightly different than a pool pump shaft seal. Some booster pump and pool pump shaft seals require that a silicone sealant be used on the outer areas of the metal seat of the shaft seal. The seal will need to be lightly hammered into the body of the pump. You can use a 1 inch PVC coupling or a piece of 1 1/4 inch PVC pipe and a rubber mallet. This procedure will apply to any pool pump or booster pump using a >PS-1000 style shaft seal.

?     Asked on 1/19/2012 by Guest

I'm trying to replace the motor on my pool pump but all these numbers and abbreviations on the motor label are really confusing me. What do they mean?

A  Answered on 1/19/2012 by InyoPools Product Specialist Patrick P.

Replacing a pool pump motor is not as difficult as it seems. You can try looking here. If you need help figuring out what the information on your label means. If you are still having difficulty figuring it out you can call us at our toll free number or you can send us a photo of your motor label here.

?     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.


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