A.O. Smith 2 HP Square Flange 56Y Up Rate Motor - B855

$232.99

IN STOCK
FREE SHIPPING

Part # B855

By Century Motors

  4.66 Average  

Details

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Part # B855

Warranty 1 Year

Dimensions 13" L x 8" W x 6.5" D

Alternate Part #'s 10-177897-22, 1103675400, 177897, 182115, 193268, 1D191, 5U126, 7-177897-22, 8-177897-22, A0104700, B694, SQ120U

Product Description

A.O Smith, Century and Magnetek replacement motors for your swimming pool pumps. INYOpools.com is one the largest pool pump replacement motor retailers in the world. Our replacement pool motors are made to all of the top manufacturers specifications. We stock thousands of motors which are designed to work on pool and spa pumps from manufactures like: Sta-Rite, Pac Fab, Hayward, Purex, American Products, Jandy, Jacuzzi, and more. If you need assistance choosing the proper replacement motor for your pump then feel free to Call us at 1-877-372-6038 and we will find the correct motor for you. Call 1-877-372-6038 for expert advice.

Note: NOT California Title 20 Compliant. 

California Title 20 Compliant Options:

Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

Motor Name:
2 HP B855 & B2855 Replacement Pool Motor
HP:
2 HP
Speed:
Single
RPM:
3450 RPM
Volts:
230 V
Amps:
10 amp
Service Factor:
1.1
Total HP:
2.2 HP
Frame:
56Y
Stock #:
B855 or B2855
Shaft:
Threaded
Overload Protector:
Auto
Dimension Letter:
C
Dimensions:
13.4 in.
Commonly Used On:
Sta-Rite: Max-E-Glas, Max-E-Glas II, Dura-Glas, Dura-Glas II, Dyna-Glas, Dyna-Max. Pentair: Whisperflo, Challenger, Pinnacle and Anthony AR2 Series
Top

?     Asked on 10/1/2019 by Francisco Castellanos

I want to replace my Century Centurion A.O. Smith motor (CAT B129, Serial #CA08-02, PART 7-164304-24 , TYPE CX FR P56J, 1.5HP, SF1.30, PH1, HZ60, RPM3450, volts230/115, AMPS SF9.2/18.4, TIME: CONT. ENCL: DP FORM KJM,CODE H, INSUL CLASS B, AMB 50'C) WITH A.O. SMITH 2HP SQUARE FLANGE 56Y Up Rate Motor-B855. My pump is a Hayward self priming pump. the pump serial number is not legible. My motor makes a hummimg noise but does not push water.Might I have to replace the pump as well?
 Reply

A  Answered on 10/1/2019 by InyoPools Product Specialist Hector F.

Unfortunately the B855 is not a compatible replacement for your B129. Please click here to be directed to your single speed model motor replacement. Also, most commonly the reason for a motor to hum and not move any water is due to either the start capacitor failing or the motor has failed. You can disassemble the motor from the pump housing to inspect the parts and bench test it to be sure, and also test the capacitor
 Reply


?     Asked on 9/27/2019 by

B855 is what I need 2.2 hp. Does the one your selling me have ser# /part# 177897
 Reply

A  Answered on 9/27/2019 by InyoPools Product Specialist Hector F.

Yes, the B855 does have 177897 as an alternate part number.
 Reply


?     Asked on 9/16/2019 by E Koh

Hi, I got a new B855 motor and installed with all new US Seal PS1000 seals and gaskets for a Whisper Flo pump. However water is leaking through the bottom of the motor enclosure. I have followed closely the step by step instructions for replacing the seals and installing the motor. Can you help? Thanks.
 Reply

A  Answered on 9/17/2019 by InyoPools Product Specialist Hector F.

So these seals can easily be compromised if touched, wet or dirtied on the ceramic sides of the seal. You may be able to clean it off with rubbing alcohol and a clean cloth. Also, that seal requires some silicone to be used on the seal plate where that portion of the seal is placed into the seal plate. 
 Reply


?     Asked on 9/12/2019 by AdK

Hi, I found three electrical wires connected to the old motor, two are yellow colors and one green. I assume both yellow wires are hot. Does it matter which yellow wire is connected to Zone 1 or 3 on the motor? Thanks.
 Reply

A  Answered on 9/12/2019 by InyoPools Product Specialist Hector F.

Most likely the two yellows are hot however I would recommend using a multimeter on those leads to test and be sure. If so, then you are correct that at 220/240 voltage each lead would not matter if either is on terminal 1 or 2. 
 Reply


?     Asked on 8/30/2019 by John P

Good Afternoon, looking to replace my Pentair Part No. 7-177476-20. Should probably purchase a seal kit for the pump also. DO you have recommendations. I presume this is the motor I require.

 Reply

A  Answered on 8/30/2019 by InyoPools Product Specialist Lennox H.

Hi, John P. This B2855 motor can be used if you're using 230 volts. The SuperFlo Tune Up Kit - GOKIT78 is what you will need. 
 Reply


?     Asked on 8/28/2019 by

Hello, what is the right run capacitor size for this motor (2HP, B855 model)? My capacitor leaked and the label is smeared. Thanks!
 Reply

A  Answered on 8/29/2019 by InyoPools Product Specialist Lennox H.

Hi. The 30 MFD 370 VAC Run Capacitor - 628318-308 is the correct replacement for the B855 motor.  
 Reply


?     Asked on 8/16/2019 by Roger Ira Aghai

can we get additional warranty?
 Reply

A  Answered on 8/16/2019 by InyoPools Product Specialist Hector F.

Unfortunately, there is no extended warranty on these motors that we offer. You can view the warranty details on this warranty card.
 Reply


?     Asked on 8/8/2019 by cynthia

will this motor(B855) replace the B124 motor
 Reply

A  Answered on 8/9/2019 by InyoPools Product Specialist Joe S.

Good day if you have a B124 you will need to order PART # 5205X Motor 56c Keyed Full 2 Hp (b124).
 Reply


?     Asked on 7/25/2019 by Tom

Will this pump replace modelk48n2pa105c4.
 Reply

A  Answered on 7/25/2019 by InyoPools Product Specialist Lennox H.

Hi, Tom. It will NOT, the SQ1202 or B2748 are your options. 
 Reply


?     Asked on 7/9/2019 by Thomas Brashier

Will this motor replace a Pentair WF-28 motor
 Reply

A  Answered on 7/9/2019 by InyoPools Product Specialist Lennox H.

Hi, Thomas. Yes, this B855 (230V Only) will operate a Pentair Whisperflo WF-28 model pump. You will also need to get the Whisperflo Tune Up Kit - GOKIT32 or GOKIT32SALT.
 Reply


?     Asked on 7/7/2019 by Miles P.

Hi - Can you tell me if this motor will be a suitable replacement for my Pentair Challenger pool pump motor and what is the best seal kit to purchase with it? I've attached a picture below.

 Reply

A  Answered on 7/7/2019 by InyoPools Product Specialist Lennox H.

The A.O. Smith 1.5 HP Square Flange 56Y Full Rate Motor - B2858 is the correct motor for replacement. The Pentair Shaft Seal OEM 5/8" - 354545S can be installed on both CHII or CFII model Challengers. Please check the service tag on the pump, not the  motor for the model number verification of CHII or CFII. If it confirms CHII you may order the Gokit5 or Gokit5Salt If you have the CFII Series, you will need to itemize all O-Rings.
 Reply


?     Asked on 7/5/2019 by jose

i have a b855 motor and I noticed that it has a white wire already installed , I have to put one of the hot wire also in the same place of the white wire?
 Reply

A  Answered on 7/6/2019 by InyoPools Product Specialist Lennox H.

Hi, Jose. Yes, that is correct. 
 Reply


?     Asked on 7/1/2019 by Mike

I have a Jandy pump model phpf1.5. Will this motor work?
 Reply

A  Answered on 7/1/2019 by InyoPools Product Specialist Patrick P.

Yes, this is the correct replacement motor for the Jandy phpf1.5. You will also need a shaft seal when you replace your motor. Please take a look at the serial # on your pump and if your serial # is before Before P08FF0001 then you will need this Before P08FF0001 Shaft Seal and if your serial # is After P08FF0001 then you will need this After P08FF0001 Shaft Seal. We put together this Video on How to Replace a Pool Pump Motor which you may find helpful when you tackle this project.
 Reply


?     Asked on 6/30/2019 by Vin

Would this be the correct replacement pump for 7-193987-24. See photo attached

 Reply

A  Answered on 7/1/2019 by InyoPools Product Specialist Matt S.

Yes, the B855 is a suitable replacement for your 7-193987-24.
 Reply


?     Asked on 6/22/2019 by Terry Sauder

What is the correct sized capacitor for the B855?
 Reply

A  Answered on 6/23/2019 by InyoPools Product Specialist Lennox H.

Hi, Terry. The B855 motor uses the 30 MFD 370 VAC Run Capacitor - 5VR0303
 Reply


?     Asked on 6/19/2019 by Eric

I have a Jandy Stealth SHPM 2.0 pump S/N J06FI1393. Motor is A.O Smith S/N CB08-29 Part Number 7-193994-06. The manual says replacement motor should be B865SE which appears to be unavailable and replaced by a different newer model. Can you confirm which motor will fit my pump based on the info provided? Pictures attached.

 Reply

A  Answered on 6/19/2019 by InyoPools Product Specialist Matt S.

The B865SE 2-HP Uprated has been discontinued, but the current replacement is the B2842 1.5HP Full rated Energy Efficient. Both of these motors have matching total horsepower ratings of 2.2- HP (Listed HP x Service Factor (SF) = Total HP). This B855 will work, but it would cost more to run because it is a standard efficiency and not an EE.
 Reply


?     Asked on 6/4/2019 by Jack

Can you tell me what motor and everything else I need to replace this motor?

 Reply

A  Answered on 6/5/2019 by InyoPools Product Specialist Patrick P.

Hi Jack, You will require the PL2853 1.5 HP Replacement Motor for your 38448322 Ultra Flo Pump using a 177474 motor. You will also require this American Products Ultra Flo Seal Kit. We also put together this Video on How to Replace a Pool Pump Motor which you may find helpful when you tackle this project.
 Reply


?     Asked on 6/3/2019 by Connie Bowley

I am replacing my Century pool pump motor B855 and need to replace the seals and O-rings. The label on the pump is damaged so I can't read the model number. The pump is a Pentair WhisperFlo, can you tell me which seals and O-rings I need and is there a kit I can order?
 Reply

A  Answered on 6/8/2019 by InyoPools Product Specialist Hector F.

You can use the GOKIT32 for a chlorine swimming pool and GOKIT32SALT for a saltwater swimming pool.
 Reply


?     Asked on 6/2/2019 by Jimmy

See photo. Looking to replace this motor. Please tell me which motor I should order. Also, what other parts/gaskets do I need to replace motor?

 Reply

A  Answered on 6/2/2019 by InyoPools Product Specialist Patrick P.

Hi Jimmy, This is NOT the correct replacement motor for the motor included in your photo. You will require this B2843 2 HP Replacement Motor You will also need this Jandy Stealth Shaft Seal We also put together this Video on How to Replace a Pool Pump Motor which you may find helpful when you tackle this project.
 Reply

  • Commented on 6/3/2019 by Product Owner

    Thank you so much. Correct pump shaft seal ordered.....and thanks for the link to the instructional how to replace the pump video!
     Reply

    • Commented on 6/3/2019 by InyoPools Product Specialist Patrick P.

      Thanks Jimmy, glad we could help!
       Reply


?     Asked on 5/31/2019 by

What is the correct Body, Tank W/cover,basket,and O-ring for this pump?
 Reply

A  Answered on 5/31/2019 by InyoPools Product Specialist Steve M.

We apologize, but the Century Motors A.O. Smith 2 HP Square Flange 56Y Up Rate Motor - B855 can fit hundreds of pump body variations, there is not one body specific to this motor. In order to find the replacement parts you need, please send a photo of your entire pump wet-end to upload@inyopools.com so we can review and identify. 
 Reply


?     Asked on 5/28/2019 by PATRICIA L HOWLIN

Need a replacement motor for an A O smith 177897-22 unit, also need to know what seals/gaskets are needed to install it, see attached pictures. Also how quickly will it ship.

 Reply

A  Answered on 5/28/2019 by InyoPools Product Specialist Patrick P.

Hi Patricia, Yes this is the correct replacement motor the motor included in your photo. You will also need a Waterway Mustang Shaft Seal when you replace your motor. We put together this Video on How to Replace a Pool Pump Motor which you may find helpful when you tackle this project.
 Reply


?     Asked on 5/18/2019 by Samantha Lyle

I am trying to replace my Jandy JHPU2.0-2 pump motor. Will this model work for me?
 Reply

A  Answered on 5/18/2019 by InyoPools Product Specialist Lennox H.

Hi, Samantha. Based on the model provided, the B2977 motor which is a dual speed or the PL2230 single speed motor will work with your model pump. Whichever motor you use, you will still need to get the Jandy JHP + JHPU Series Tune Up Kit - GOKIT77.   
 Reply


?     Asked on 5/6/2019 by

Is the B855 on your site the correct replacement for my old B855? Will I need any additional parts not included in the package in order to install? Thanks.

 Reply

A  Answered on 5/6/2019 by InyoPools Product Specialist Hector F.

Yes our B855 will be the same as your B855. We also recommend to replace the seals and gaskets but in order to cross reference those you will need the model name or number of the front pump housing that the motor bolts to. If that information is not legible then you can always email pictures of that to upload@inyopools.com so we can assist in identifying that. 
 Reply


?     Asked on 5/1/2019 by DENNIS

Need a pump seal assembly for A.O. Smith 2 HP Square Flange 56Y Up Rate Motor - B855. Can I use anyone or what do you reccomend
 Reply

A  Answered on 5/1/2019 by InyoPools Product Specialist Lennox H.

Hi, Dennis. The seal is specific to the pump housing, not the motor. Please provide the make and model of the pump housing so that we can locate those seals. 
 Reply


?     Asked on 4/30/2019 by Fred D. Schmitt

Need a replacement motor for an AO Smith 2 HP, 3600 rpm DP Y56J P/N 7-184590-22 3/60/230-460
 Reply

A  Answered on 4/30/2019 by InyoPools Product Specialist Patrick P.

Hi Fred, What type of application is the motor being used on?
 Reply


?     Asked on 4/21/2019 by bryan

i need to replace a century 177897 which i purchased from you several years ago (bearings are shot). what options do i have for either a energy efficient or variable speed pump in its place? thanks
 Reply

A  Answered on 4/25/2019 by InyoPools Product Specialist Lennox H.

Hi, Bryan. Your replacement options are the ECM27SQU (Variable Speed) or the B2842 (EE Single Speed) motor. 
 Reply


?     Asked on 4/5/2019 by Ed

What would be the proper replacement motor and shaft seal? Jandy Stealth
 Reply

A  Answered on 4/6/2019 by InyoPools Product Specialist Lennox H.

Hi, Ed. We will need to know the model and serial of your Stealth pump in order to locate the proper parts.
 Reply


?     Asked on 3/8/2019 by Brent

What is the right capacitor for this motor?
 Reply

A  Answered on 3/8/2019 by InyoPools Product Specialist Lennox H.

Hi, Brent. The 30 MFD, 370 VAC Run Capacitor - 628318-308 is the correct replacement capacitor for this B855 motor. 
 Reply


?     Asked on 2/21/2019 by Perry Dayco

Hi there! Is this the right replacement for Magnetek Century Centurion part no. 7-177451-03? Thanks.
 Reply

A  Answered on 2/21/2019 by InyoPools Product Specialist Lennox H.

Hi, Perry. This B2855 motor can be used as an alternate replacement for Part #  7-177451-03. This B2855 motor use more energy. The direct replacement is the B2842 which is an energy efficient. Please see the Note in the product description if you reside in the state of California. 
 Reply

  • Commented on 2/21/2019 by Product Owner

    Thanks Lennox, does it come with warranty? and also can you tell me the seal I need to use with it?
     Reply

    • Commented on 2/26/2019 by InyoPools Product Specialist Lennox H.

      Perry, The motor has a 1 year warranty. The pump housing model is required in order to locate the seals. 
       Reply


?     Asked on 2/19/2019 by mARK

My Poll Pump Motor is making high pitch wine, it's a Pentair Part 7-177452-03 (Picture Attached), could you please advise what the replacement motor would be and cost in Almond Color? Also could you please advise what the pump seal kit would be and the cost? Thank you for your help. Kind Regards, Mark O'Brien

 Reply

A  Answered on 2/19/2019 by InyoPools Product Specialist Lennox H.

Hi, Mark. The replacement OEM motor is Part # 071316S and the seal kit is Part # GOKIT32 or GOKIT32SALT
 Reply


?     Asked on 2/10/2019 by jt

I have an old 2.0HP Century Centurion motor Part# 10-158367-04 what motor would replace this, and is there a more energy efficient motor to replace with that isn't $$$$$. Thanks you for your time, Joshua Cook

 Reply

A  Answered on 2/11/2019 by InyoPools Product Specialist Patrick P.

Hi Joshua, the appropriate replacement motor for your motor would be the B124 2 HP Full Rate Keyed Shaft Motor this is the only motor offered that would work as a replacement to your motor.
 Reply


?     Asked on 2/6/2019 by

Hello Which motor can replace the one in the attached image? Thank you

 Reply

A  Answered on 2/6/2019 by InyoPools Product Specialist Lennox H.

Hi. This motor can be used as a replacement if you're using 230 volts. If you have 115 volts, you will need the B2859 or the SPX3215Z1MR motor. You will also need the TriStar Tune Up Kit - SPXHKIT100
 Reply


?     Asked on 12/24/2018 by sihan lin

Is this A.O. Smith B855 a replacement for my old PAC LAB part# 7-168787-07?

 Reply

A  Answered on 12/24/2018 by InyoPools Product Specialist Lennox H.

Hi, Sihan. You can use this B2855 or the Century 1.5 HP Motor EE Full Rate - B2842 which is the direct replacement. 
 Reply


?     Asked on 10/22/2018 by Karen

Hello, great website! I need to replace my motor. I have a Jandy SHPM2.5, serial #R10FH1331. The current motor is an A.O. Smith Century Centurion with part number 7-193995-07. Would like to confirm that the B855 is the correct replacement motor and R0479400 is the correct replacement seal. I have a label on my motor that says 'rated hp 2.5 x sf 1.04 = total motor hp 2.6. I don't see that same info on the B855. Thank you very much!
 Reply

A  Answered on 10/23/2018 by InyoPools Product Specialist Lennox H.

Hi, Karen. This B855 is not the correct replacement, you will need the B2840 - 2.5 H.P Square Flange 56Y Up Rate Motor along with the Shaft Seal OEM - R0479400
 Reply


?     Asked on 10/11/2018 by

Will the motor on your site replace this? (Your link below) It's still working but no more warranty, we are looking for that go to place when %^&$ hits the fan, thanks in advance http://www.inyopools.com/Products/03000017039422.htm?gclid=EAIaIQobChMIqsGYroj_3QIVBZ7ACh1xRwysEAQYAyABEgJ8F_D_BwE

 Reply

A  Answered on 10/11/2018 by InyoPools Product Specialist Andy O.

Hello Joe- Yes,  the A.O. Smith 2 HP, 56Y Frame, Up-Rate Motor - B855 is the correct replacement motor. We also recommend changing the seals which would be a Tune Up Kit Pentair/Purex Whisperflo - GOKIT32
 Reply


?     Asked on 9/26/2018 by Scott

I have a Pentair WhisperFlo system but my pool guy replaced my motor with a Century B855. It has shot craps and I'm finding my salt water generator has caused the cover plates to literally disintegrate. What Whisperflo motor replaces a Century B855. Also the seal plate, impeller are brittle as well. Thanks
 Reply

A  Answered on 9/27/2018 by InyoPools Product Specialist Lennox H.

Hi, Scott. You can use the Whisperflo OEM Motor - 355012S to replace the B855 motor. The Seal Plate - 074564, Impeller - 073129, Diffuser - 072927 are all also compatible. 
 Reply


?     Asked on 8/27/2018 by ken

The motor I have is a Pentair part # 7-168454-25. this is the motor that I need to know start capacitor size.
 Reply

A  Answered on 8/27/2018 by InyoPools Product Specialist Lennox H.

Hi, Ken. The replacement capacitor is the 30 MFD 370 VAC Run Capacitor - 5VR0303.
 Reply


?     Asked on 7/7/2018 by Dirk

Hello, is there a variable speed motor that can replace my current motor on a Jandy SHPM2.0? Current motor is a Century Centurion part # 0-193994-06, type CD, frame Y56Y, 230V.7
 Reply

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

Hi, Dirk. The Century V-Green - ECM27SQU will be the replacement variable speed replacement motor that you can use to replace Part # 0-193994-06.  
 Reply


?     Asked on 6/4/2018 by David

I need to replace the motor on the Pac Fab Challenger 2 HP, is the Century B855 56y square flange 2 HP the correct motor??
 Reply

A  Answered on 6/4/2018 by InyoPools Product Specialist Lennox H.

Hi, David. It's possible. In order to confirm, I will need to know the motor Part, MOD or CAT #. You can use our How to Read Pump Motor Labels guide. 
 Reply


?     Asked on 5/27/2018 by thomas

if this is 220 volt motor is that 5 amps on each leg
 Reply

A  Answered on 6/8/2018 by InyoPools Product Specialist Andy O.

Hello Thomas- Yes the A.O. Smith 2 HP, 56Y Frame, Up-Rate Motor - B855 is a 230v motor.
 Reply


?     Asked on 5/27/2018 by Joe Shankle

Can a Century 193994 be replaced by a B855 Motor?
 Reply

A  Answered on 5/27/2018 by InyoPools Product Specialist Lennox H.

Hi, Joe. Yes, this B2855 motor can be used to replace Part #193994.
 Reply


?     Asked on 1/24/2018 by Ron

My motor is full of rust and has a broken stator. Will this replace my A.O smith 7-193987-24 and what kit do I need, if my pump is Jandy PHPM2.0
 Reply

A  Answered on 1/25/2018 by InyoPools Product Specialist Lennox H.

Hi, Ron. Yes, this motor can be used as a replacement for P/N 7-193987-24 if you're using 208-230 volts. If you're using 115 volts you will need the B2859
 Reply


?     Asked on 9/16/2017 by Mark

I have a Centurion 7-165201-07. Can I replace it with this or do I need to stick with a B843 or B2843? Also, the sticker on my whisperflow has deteriorated away and I can't see the model number. Will the GoKit work on any WhisperFlow?
 Reply

A  Answered on 9/20/2017 by InyoPools Product Specialist Lennox H.

Hi, Mark. The Century B843 motor is the correct replacement, you can not use this B855 motor. The Whisperflo Tune Up Kit - GOKIT32 or GOKIT32SALT is the kit you'll need for your pump. 
 Reply


?     Asked on 9/16/2017 by Tom

Do you have an AO Smith pump - PN - 7-177897-22 in stock? Is there a two speed version of this same pump - in stock? and price? Thx
 Reply

A  Answered on 9/20/2017 by InyoPools Product Specialist Lennox H.

Hi, Tom. This B855 motor is the correct replacement for Part #7-177897-22. You can use the Century B983 dual speed motor which requires P/N 2512558-001 or T106R
 Reply


?     Asked on 8/21/2017 by Scott

Looking for replacement motor, current is a 7-193990-07 Type CXPM Frame Y56Y PH=1, 60HZ RPM 3450/1725 Volts 230
 Reply

A  Answered on 8/21/2017 by InyoPools Product Specialist Lennox H.

Hi, Scott. The Century B2983 Motor is the replacement for Part # 7-193990-07.
 Reply


?     Asked on 8/9/2017 by Ron

Would the AO Smith B855 be the right replacement for an Emerson 1081, 2HP 56Y (EB843) pool pump? Emerson has SF 1.3 vs. the AO Smith SF1.1 It connects up to a Pentair Whisperflo pump
 Reply

A  Answered on 8/9/2017 by InyoPools Product Specialist Alex V.

Ron, The replacement for the EB843 would be the Century B843. The B855 is not a suitable replacement. 
 Reply


?     Asked on 6/26/2017 by Ruben

Would this be my replacement motor I have a century two speed AO Smith part # 7-193990-07 type CXPM Y56Y 2HP 230 V RPM 3450/1725 HZ 60. I was looking on the pictures and I only see L1, L2 & B mine shows 1, 2 & 3, 4 number 4 has a yellow wire for low speed would it go to the B connector on the new motor. Can you help me out with this question. Thank you Ruben
 Reply

A  Answered on 6/26/2017 by InyoPools Product Specialist Alex V.

Ruben, Can you please attach a photo of your motor label? There are additional specs we will need to confirm. 
 Reply


?     Asked on 6/21/2017 by Richard

I have a Jandy Stealth SFPF2.0CP with broken shaft on Century Centurion Serial CB08-17 Part #7-193995.07. Not sure what my options are for a replacement motor
 Reply

A  Answered on 6/22/2017 by InyoPools Product Specialist Patrick P.

Hi Richard, You would require this B2843 2 HP Full Rate Energy Efficient Replacement Motor and this Jandy Stealth Shaft Seal.
 Reply


?     Asked on 6/18/2017 by Les

need replacement pool pump motor; 1st replacement lasted 15mths Century Centurion A.O.Smith cat:B855 type:CX FR:Y56Y 230v Amps SF10.0 2HP SF1.10 1ph 60hz 3450rpm ...replacement or something better??
 Reply

A  Answered on 6/20/2017 by InyoPools Product Specialist Patrick P.

Hi Les, I would go with the B748 2 HP Full Rate Motor as this motor is going to be a stronger motor and will not be pushed to its limits, thus resulting in longer life.
 Reply


?     Asked on 6/5/2017 by Julie

My B855 pump. Is making a loud noise and running hot ... is it worth it to replace the bearings? Yes the pool still running. so so if I change the pump again which seal should I use for a salt water pool? My pump is only 1 and half years Old.
 Reply

A  Answered on 6/11/2017 by InyoPools Product Specialist Patrick P.

Hi Julie, My suggestion would be to replace your B855 motor. The bearing replacement is a pretty involved project and the cost savings is not huge. If you could let us know the make and model of your pump then we could suggest the proper seal kit.
 Reply


?     Asked on 4/10/2017 by Kantipudi, Rao

My pool motor is US Motor model k63CXESF 4793, 2 HP, S.F1.3,RPM4793,Amps10.6/10; Frame56Y; 1081 Pool Motor, Exireme-1 model. Does your yourA.O.Smith 2Ho,56Y frame works for my pool. Thanks for your reply.
 Reply

A  Answered on 4/10/2017 by InyoPools Product Specialist Scott W.

The direct replacement would be part number B843.
 Reply


?     Asked on 4/2/2017 by Gary

How, where do I order the correct gaskets kit for the Centurian B855 pool pump?
 Reply

A  Answered on 4/3/2017 by InyoPools Product Specialist Lennox H.

Hi, Gary. We will need the pump housing model number in order to locate the correct seals. Centurion B855 is the motor info which can be used on many different pumps.
 Reply


?     Asked on 4/1/2017 by Stephen

I have a Jandy SHPM2.0 2HP. This looks like the right motor to replace. I think also the correct seal is R0479400 - please confirm? Anything else I'd need to do the job or should replace while doing it?
 Reply

A  Answered on 4/3/2017 by InyoPools Product Specialist Lennox H.

Hi, Stephen. The B855 is the correct replacement motor for the SHPM2.0 pump. If the serial number on you pump is P08FF0001 and later then p/n R0479400 would also be correct or you would need p/n R0445500. I would also recommend replacing the Diffuser And Impeller Hardware - R0446500 and the Backplate O-ring - R0446300.
 Reply


?     Asked on 3/21/2017 by CLYDE

HOW WELL DOES THIS MOTOR RETRO FITS TO A FHPM2.0 FLOW PRO
 Reply

A  Answered on 3/22/2017 by InyoPools Product Specialist Hector F.

Yes that is the correct replacement motor for this FloPro as long as you are replacing the original motor. If it has been changed since the original purchase then you will need to try and locate the motor model and or part number to confirm.
 Reply


?     Asked on 3/12/2017 by Jeremy

Will this motor replace the JEP 2.0 R0474403? Is it capable of the variable speed?
 Reply

A  Answered on 3/13/2017 by InyoPools Product Specialist Scott W.

Part number 35-295-1252 would be the direct replacement motor and would need to be special ordered from Jandy which could take 3-4 weeks for delivery. We have a variable speed replacement that is part number ECM27SQU. The shaft seal for that motor install is part number 5020-087.
 Reply


?     Asked on 3/11/2017 by HUNG V NGUYEN

I got A.O.SMITH POOL PUMP WITH PARTS#159988-06, CATB130 BUT I SAW ONLINE YOU GOT PARTS#B855 THE DIFFERENT IS AROUND THE HEAD B855 JUST GOT 4 SCREWS (BOLD) ONLY MINE IS GOT 6 SCREWS SOO MY QUESTION IS OK TO FIT ON MINE THANKS GIVE ME A CALL 214-4750367
 Reply

A  Answered on 3/13/2017 by InyoPools Product Specialist Scott W.

According to the information you provided the correct replacement motor is part number 5224X.
 Reply


?     Asked on 1/9/2017 by Jim

I have a 2008 Jandy stealth pump with an A O Smith motor B2843. Can the B855 be used as a replacement ? Should you replace the impeller, defusser and shaft seal ?
 Reply

A  Answered on 1/10/2017 by InyoPools Product Specialist Adam Y.

Good morning Jim, The service factor on the B855 is lower giving you a lower total HP. But Yes, You can use it as a replacement as it is not that far off and has the same flange size. It is only a $20.00 difference.
 Reply


?     Asked on 10/12/2016 by carlos

I have an A.O.Smith pump. Model K48N2Pa105C4 Serial Number 08111FM. It is leaking, What would it cost to repair it, I assume new gaskets, or what does a new one cost, Is it pretty easy to repair or replace. What would be the new motor needed if I go with replacement? thanks
 Reply

A  Answered on 10/13/2016 by InyoPools Product Specialist Alan M.

Hello Carlos- The model number you provided is for a motor, the A.O. Smith 2 H.P Square Flange Full Rate Motor - SQ1202. You can click on the link to see the current pricing. Unfortunately, the model number of the motor will not identify the pump, at this motor will fit on over 10 different pumps. I would need to know the make and model of your pump in order to identify the replacement parts you will need or the cost of a new pump, if it is currently available.
 Reply


?     Asked on 9/26/2016 by Jack

I have a Franklin 1081 pool pump motor. The bearings are starting to squeal. I know the motor is at least 25 years old. I'm thinking replacing the bearings might be wasting time and money on a 25-30 year old pump as I might just be chasing more problems. Or it might be a great motor that can last 50 years. What do you think? My pool is 22k gallons 18 X 36 X 7 deep in case you recommend new pump. I have a fairly new Hayward filter model C3025.
 Reply

A  Answered on 9/29/2016 by InyoPools Product Specialist Scott W.

Bearings are inexpensive compared to a new pump or motor. Me personally, I would try to keep that motor going as long as possible. They don't make motors that last 25 years anymore.
 Reply


?     Asked on 9/13/2016 by Jerry

I have a 2 hp A.O. Smith motor # 168454 I need to replace. 3450 rpm,10.5 A . 56y frame with a Challenger #346201 High pressure pump mounted on it. Would the B855 the pump I need? Thanks
 Reply

A  Answered on 9/14/2016 by InyoPools Product Specialist Scott W.

Yes, the B855 would be the replacement for that and the shaft seal to go along with it is part number 354545S; always want to replace shaft seal anytime you replace the motor.
 Reply


?     Asked on 9/13/2016 by Sunkim

I am little bit confused ,I just replaced pump motor century B 855 and wiring is different from old one (pant airCHII) Please guide me how the wires should be wired?
 Reply

A  Answered on 9/14/2016 by InyoPools Product Specialist Stacey M.

Hello, there is a how to video on how to hook this up.
 Reply


?     Asked on 8/19/2016 by Walter

I have a WFDS-8 and the motor windings are burned, bad motor. What is the replacement motor if I don't want to go with 2 speed and a single speed motor is fine to use with my timer. I think the Pentair number is 075236S, is this correct?
 Reply

A  Answered on 8/20/2016 by InyoPools Product Specialist Alex V.

Walter, The WFDS-8 is a 2HP full rated 2 speed pump. If you want to go with a single speed, you would need the B843 motor. I would also recommend a tune up kit.
 Reply


?     Asked on 8/18/2016 by Anguel

I have a Challenger PAC-FAB 2HP (35-5460) pool pump. Unfortunately, the label on the motor has faded beyond being readable. Is this motor a proper one for my pump?
 Reply

A  Answered on 8/19/2016 by InyoPools Product Specialist Alan M.

The A.O. Smith 2 HP, 56Y Frame, Up-Rate Motor - B855 will be the correct replacement motor for the Pac-Fab Challenger 2HP pump. We would also recommend that your replace the seals on your pump when ever you replace the motor with the Tune Up Kit Pentair Challenger Pump - GOKIT5.
 Reply


?     Asked on 8/6/2016 by karen

I have a century centurion A.O. Smith. what motor to I need - 2HP, 1.3 SF, Serial CAO/1- 26, Part 7 -177452 -03, Type CX, Fr Y56Y, HZ 60, Form KJM, Volts 208-230, RPM 3450, AMPS 11.0-10.2, Time CONT., ENCL DP
 Reply

A  Answered on 8/12/2016 by InyoPools Product Specialist Lennox H.

HI Karen, The B2843 is the correct replacement motor based on the info provided.
 Reply


?     Asked on 7/12/2016 by Gene S

I recently purchased the above named motor from your company, while removing the wiring from the old motor I took pictures of the wiring configuration. The pictures came out dark and difficult to use. I have three wires, green black and red, can you assist me with the correct placement of those wires on my pump motor.
 Reply

A  Answered on 7/17/2016 by InyoPools Product Specialist Lennox H.

Hi Gene S, The "Black" and "Red" wires will each occupy either L1 and L2 and the "Green" goes to the ground.
 Reply


?     Asked on 6/28/2016 by Marsha

I have a 14 year old WhisperFlo WF-28, 2HP, 1.1SF pump. The motor on it now is an AO Smith Century Centurion B748, which I believe is a full-rated 2HP, but it looks like the AO Smith Century B855 (uprated) is the motor that is recommended for this pump. Should I purchase a B748 or a B855? Should I be concerned about the impeller?
 Reply

A  Answered on 7/3/2016 by InyoPools Product Specialist Alex V.

Marsha, The B855 would be the correct replacement motor based on the pump model. If they did not replace the impeller, when they upgraded the motor, you would not need to change it.
 Reply


?     Asked on 6/14/2016 by

I need a pump motor that is used in a SVL56 waterway?? Serial #BZ08-4 Part 7 177897-22 Any suggestions on the correct replacement?? Which tune up kit as well??
 Reply

A  Answered on 6/14/2016 by InyoPools Product Specialist Patrick P.

This is the correct replacement motor your SVL56 waterway pump. There is not a tune up kit for your pump but you will need this SVL56 waterway Shaft Seal.
 Reply


?     Asked on 6/6/2016 by Andres

can I replace my century centurion AOL Smith motor #B854 with a B855?
 Reply

A  Answered on 6/7/2016 by InyoPools Product Specialist Patrick P.

Hi Andres, You can but you would also need to upgrade your impeller. Do you know which pump you have, it should say Pentair Whisperflo, Challenger, Dura Glas, etc..
 Reply


?     Asked on 4/8/2016 by Jean

What motor would be the right one to replace U.S. Motors 1081, CAT # EB859, HP 2.0, RPM 3450, Volts 230/115, HZ60, Amps 10.8/21.6, Frame 56Y, INS Class B, and SF. 1.10? Thank you for your help.
 Reply

A  Answered on 4/8/2016 by InyoPools Product Specialist Alan M.

Hello Jean, The A.O. Smith 2 HP, 56Y Frame, Up-Rate Motor 230/115 (B859, B2859) would be the correct replacement for your EB859 motor.
 Reply


?     Asked on 3/12/2016 by

Dear Sir, Can this motor be replaced for US Motor Emerson 1081 EB843 Frame 56Y Class B RPM 3450 HP 2 Volts 208 - 230 Amps 10.6 - 10,0 S.F. 1,30 Thanks
 Reply

A  Answered on 3/15/2016 by InyoPools Product Specialist Lennox H.

Hi, The A.O. Smith 2 HP Motor EE - Full Rate (B843) would be the correct replacement motor.
 Reply


?     Asked on 2/12/2016 by Tim

I have a pentair WF-28 / 011774 pump and the bearings are shot. Looking to replace the motor. Motor # is 196240, 2 hp., S.F. 2.2 hp, 230v, 3450 rpm. Please advise the correct motor for replacement and any parts kits needed. thanks
 Reply

A  Answered on 2/12/2016 by InyoPools Product Specialist Andy O.

Tim- The correct motor for your WF-28/011774 Whisperflo Pump 2 HP will be the B855 A.O. Smith 2 HP, 56Y Frame, Up-Rate Motor. The seal kit you will need for the whisperflo is the Gokit 32.
 Reply


?     Asked on 1/2/2016 by Mark

Hello, I have a Jandy Stealth 2.0 HP pump and motor, AO Smith Century Centurion. I have selected this motor based on the information on the motor label matching all the information on my motor. However, my Jandy pump manual says my SHPM 2.0 motor is model B865SE and your motor is model B855. Also your list of "Commonly used on" does not include Jandy, and the B865SE is not listed in the Alternate Part numbers. Is this motor a suitable replacement? Thanks for any help you can provide. Mark
 Reply

A  Answered on 1/5/2016 by InyoPools Product Specialist Andy O.

Mark- The B865SE is discontinued and no longer available. You can substitute it with the A.O. Smith 2 HP, 56Y Frame, Up-Rate Motor B855.
 Reply


?     Asked on 1/2/2016 by

Seeking the correct motor replacement for Jandy Stealth 2HP pump. Existing motor is A.O. Smith Century Centurion O-193994-06. Frame Y56Y, Volts 208-230, Amps SF9.6-8.8, RPM 3450. Motor does show the SF rating. I assume I need this up-rated 2HP motor?
 Reply

A  Answered on 1/6/2016 by InyoPools Product Specialist Lennox H.

Hi, The A.O. Smith 1.5 HP EE Full Rate Motor (B2842) will be the replacement for p/n 0-193994-06. The B855 motor can also work but it will use more amps which will cost more to operate.
 Reply


?     Asked on 11/5/2015 by Jason

I have this motor. When I turn it on the motor hums and the shaft spins slowly. Then after about 20 seconds the safety in the motor cuts it off. I replaced the capacitor but still same result. When off the shaft spins freely in either direction. Any ideas? Motor is 5 years old. Was running 10-12 hours a day until it stopped a few days ago. Thanks
 Reply

A  Answered on 11/12/2015 by InyoPools Product Specialist Charlie R.

Jason,If a ne capacitor didn't solve your issue, sounds like buying a new motor may be your best option. 5 years is a pretty good life line for a motor operating that consistently.
 Reply


?     Asked on 10/15/2015 by Apps

Does this pump has 2 Capacitors? One for Start and One for Run? My pump is not starting but when I turn the shaft once then it works fine. Should I change the run capacitor as I dont see any other one?
 Reply

A  Answered on 10/16/2015 by InyoPools Product Specialist Lennox H.

Hi Apps, The B855 motor only have a 30 MFD 370 V Run Capacitor, no start capacitor.
 Reply


?     Asked on 9/30/2015 by Bob

I have a Centurion Part# 8-177081-40 Pool and Spa Duty motor that I need to replace. It is a Y56Y frame 230/115 Volt. What A.O. Smith motor should I order. Also what gaskets do I need to replace when switching out the motor? Thank You
 Reply

A  Answered on 10/6/2015 by InyoPools Product Specialist Lennox H.

Hi Bob, The A.O. Smith 1.5 HP Standard Motor - Full Rate (B2858) would be the correct replacement motor. We will need to know the manufacture and model of the pump that the motor is attached too to get you the correct gaskets.
 Reply


?     Asked on 9/24/2015 by

Does the motor comes with pump included or it is something we have to order separately ? We need a 2HP motor/pump to replace current century centurion.
 Reply

A  Answered on 9/24/2015 by InyoPools Product Specialist Bob D.

Part # B855 is the motor only. Not exactly sure what you need for a pump but you'll see a few options under "Parts" at the bottom of the page.
 Reply


?     Asked on 9/19/2015 by

My pool pump motor is running really hot. Do you think a bearing replacement is the fix or a new motor
 Reply

A  Answered on 9/23/2015 by InyoPools Product Specialist Lennox H.

Hi, If the motor is suddenly overheating you can follow some of the recommended troubleshooting steps we have in our Why Is My Motor Running Hot? blog. If non of these solve your problem then the motor will have to ve replaced.
 Reply


?     Asked on 9/8/2015 by

My old motor has locked up after about 6 years. It appears you have a replacement for $245+ but my frame says Y56Y and your listing only says "56Y". Is this the same thing? Otherwise everything seems the same.
 Reply

A  Answered on 9/9/2015 by InyoPools Product Specialist Alex V.

Hello, The Y56Y and the 56Y are the same frame. As long as the specs match, this motor will work. Be sure to replace the pump seals as well.
 Reply


?     Asked on 8/28/2015 by Ed

Is this motor already preset for 230 volts or is there a switch that has to be placed for 230 volts? Also I have a red, black and green ground coming to the motor. Would the Red and the black wires go to L1 and L2? The reason I ask is because internally there is a white wire on L2. The terminals in the motor are "B", "L1", "L2", and "A". Your help is greatly appreciated.
 Reply

A  Answered on 8/31/2015 by InyoPools Product Specialist Lennox H.

Hi Ed, The motor comes set for 230 volts. When wiring the motor for 230 volts both lines are115 volts so it will not matter if the "red" or "black" wire goes to "L1" or "L2". The "green" would go to the ground.
 Reply


?     Asked on 8/28/2015 by Jesse

What motor bearing part number do I need to order for this B855 motor? When I replace the bearings, what else should I replace?
 Reply

A  Answered on 8/31/2015 by InyoPools Product Specialist Lennox H.

Hi Jesse, You would need (1) 304 Bearing (6304) for the Shaft End and (1) 203 Bearing (62032RS) for the Opposite Shaft End. It is also recommended that you replace the shaft seal and the o-rings within the pump housing.
 Reply


?     Asked on 8/28/2015 by

Does the motor come with any gaskets?
 Reply

A  Answered on 8/28/2015 by InyoPools Product Specialist Alex V.

Hello, The motor does not come with any gaskets. The gaskets will depend on the pump model number.
 Reply


?     Asked on 8/20/2015 by Ed

My pool motor is making a grinding sound ... water is being pumped. It is a Century Centurion Part # 7 - 159988 -06 , 2 HP , SS# 028083M Type CX , 230 volts, Amp. sf 10.5 About 15yrs old. Is my motor bad? What do you have and how much?
 Reply

A  Answered on 8/24/2015 by InyoPools Product Specialist Lennox H.

Hi Ed, It sounds like the bearings is going bad on the motor. Since the motor is 15 years old I would recommend replacing the entire motor. The A.O. Smith 2 HP Full-Rated 56J Motor (B130) would be the correct replacement motor based on the part # 7-159988-06.
 Reply


?     Asked on 3/18/2015 by Ivan Wong

My motor fails to start. I check the motor and the capacitor is damage. The mfd and voltage range don´t see well. Can you help me with the range of the capacitor? Thanks.
 Reply

A  Answered on 3/19/2015 by InyoPools Product Specialist Robert M.

Hello Ivan - The run capacitor for the B855 motor is part number 5270-05.
 Reply


?     Asked on 9/10/2014 by Guest

What is the flow rate of the B855?
 Reply

A  Answered on 9/10/2014 by InyoPools Product Specialist Patrick P.

The flow rate is determined by the pump model (listed on the pump housing). The B855 flow rate will vary depending on the pump model.
 Reply


Top
Difficulty

Est. Repair Time

Less than 1 hr

Tools Needed

Screwdriver, Pliers, Socket Set, Wrench Set

Pump Went Out

Written on 3/18/2019 by Guest

Followed the instructions from Inyopools.com and it worked like a charm!

Were these instructions helpful? 
 

Difficulty

Est. Repair Time

2 to 4 hrs

Tools Needed

Screwdriver, Wrench Set, Adjustable Wrench

My water level went below the skimmer line and my pool motor burned up.

Written on 8/20/2017 by Guest

Being a female and not all that hip on motor repair, I looked at many youtube repair videos. I knew what kind of motor I needed because I was replacing one and I wanted the same as I had. I ordered the motor and gasket pack and it arrived very quickly. So I turned off the electricity FIRST! then I disconnected the electrical connections to the motor. Took all the bolts out and took the motor off the pump parts. My main problem is the impeller had fused to the motor shaft which presented a big problem. Couldn't get it to unscrew. I did however finallyhave to demolish the impeller and had to dremmel the metal cap that was on the impeller to get it off. This was a very hard project. Took me several hours. But then I just looked at the videos again and put all the pieces back together per the videos. The youtube videos are amazing. Even someone inexperienced can do this repair with the step by step instructions. Also, very helpful is to take pictures of each step and what things look like and how wires are connected. You can refer back and say, oh, this goes like this and this was like this. Very smug with myself for having done this alone. So don't pay those pool people to do this for you. It may take a lot longer than the videos, but if you take your time and are careful and deliberate, you can get it done. Just remember the electricity!!!

Were these instructions helpful? 
 

Difficulty

Est. Repair Time

1 to 2 hrs

Tools Needed

Screwdriver, Socket Set, Strap wrench

2     0

Old motor burned up.

Written on 5/24/2017 by David G.

Pretty straight forward if you have basic skills and tools. The most difficult part for me was removing the impeller from the shaft on the old motor. It was so tight that I cracked the impeller with a pipe wrench (my bad). Had to order a new impeller and go buy a strap wrench that fit over the outer edge of the impeller to break it loose. The good thing about the Challenger motor is that you don't have to remove the back end and move internal parts to access the end of the shaft. (The INYO video uses a Hayward motor which is more involved.) It has a small plastic cover over the shaft end that sticks out the back of the motor. Easy to grip when turning the impeller. Otherwise the video shows just how simple it can be.

Were these instructions helpful? 
 

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