A.O. Smith 2 HP, 56Y Frame, Up-Rate Motor 230/115 (B859, B2859)

$291.99

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Part # B859

By A. O. Smith

  4.92 Average  

Details

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Part # B859

Manufacturer Code B2859

Dimensions 14" L x 8" W x 6.5" D

Alternate Part #'s 0-193987-24, 10-177476-20, 16-177476-28, 177217, 177476, 18254, 186019, 187334, 193987, 196240, 5KCR39UN6190X, 5KCR48UN2108AX, 7-177217-25, 7-177476-20, 7-177476-26, 7-177476-28, 7-F56AA13A04-25, 7-F56AA41A01-24, 8-177476-20, 90106949, 90106949r000, B2859, C1247, EB859, EUSQ1202, P719, V18254

Product Description

A.O. Smith Centurion replacement motor for pool pumps. Specifications: Voltage = 230/115 Max Amps 11.2/22.4, Single Speed, Switchless, RPM = 3450, Threaded Shaft, Frame = 56Y, Service Factor = 1.10. Used on the following models: 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.

Motor Image Motor Image

Product Specifications

Motor Name:
2 HP B855 & B2855 Replacement Pool Motor
HP:
2 HP
Speed:
Single
RPM:
3450 RPM
Volts:
230/115 V
Amps:
11.2/22.4 amp
Service Factor:
1.1
Total HP:
2.2 HP
Frame:
56Y
Stock #:
B859 or B2859
Shaft:
Threaded
Overload Protector:
Auto
Dimension Letter:
C
Dimensions:
14.4 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
Notes:
California Title 20 NON COMPLIANT (Not available for sale in CA)
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?     Asked on 2/14/2019 by Steve

Have AO Smith 177476 motor which has sadly expired. What will the California idiots allow me to replace this with? Thanx - Steve
 Reply

A  Answered on 2/14/2019 by InyoPools Product Specialist Hector F.

You can use either a dual speed motor part number B983 which can use a toggle switch which is listed in the product details or you can use a dual speed timer for it being part number T106R. Lastly, you can also use a variable speed motor part number ECM27SQU which will not any toggle switch or secondary timer. 
 Reply


?     Asked on 12/31/2018 by Rich G

Hello: I need to replace my current pump that is a square flange 1.5HP Century C48D43A04. I wanted to try to get an upgraded replacement as I wasn't happy with the performance of my current one that has gone bad in just over 3 years. Would this (A.O. Smith 2 HP, 56Y Frame, Up-Rate Motor 230/115 (B859, B2859) pump be compatible with my current pump? Thanks very much! Rich G.
 Reply

A  Answered on 12/31/2018 by InyoPools Product Specialist Joe S.

Good morning, based on the number provided C48D43A04 the A.O. Smith 2 HP, 56Y Frame, Up-Rate Motor 230/115 (B859, B2859) would be the correct motor. One thing to always keep in mind is changing the shaft seal and or the seal plate of the pump.
 Reply


?     Asked on 10/15/2018 by Peter

I am in California and have a Century Centurion CAT B859 Part 7 -177217 - 25 2 HP. Is there an alternative drop in replacement?
 Reply

A  Answered on 10/16/2018 by InyoPools Product Specialist Alex V.

Peter, If you live in California, you will need to replace your single speed motor with a 2-speed motor in order to be in compliance with your local laws. You can replace your B859 with the B985. Please note that the B985 motor will only operate on 230v. You will either need a 2-speed switch or a 2-speed timer to operate the high and low speed. Also, be sure to change your shaft seal when you replace the motor. 
 Reply


?     Asked on 8/16/2018 by Dan J

What's the warranty conditions for this pump?
 Reply

A  Answered on 8/16/2018 by InyoPools Product Specialist Lennox H.

Hi, Dan J. To view the warranty terms and conditions, see the Motor Warranty Video.
 Reply


?     Asked on 7/19/2018 by

So is this model replacement for AO Smith 7-177476..?
 Reply

A  Answered on 7/19/2018 by InyoPools Product Specialist Lennox H.

Hi. Yes, this B2859 is a replacement for Part # 7-177476.
 Reply


?     Asked on 7/1/2018 by Jay

Is this the best replacement for a "Century, part :7-F56AA13A04-25, Serial : 31213J2, FR: Y56Y, Type: CX, HP: 2.00, SF: 1.1, CODE: G, RPM: 3450, VOLTS: 230/115, HZ: 60, INSU CLASS: F, PH: 1, ENCL: ODP, AMPS: 10.5/21.0, AMB: 50 C, TIME : CONT, FORM: KJM"? Thanks
 Reply

A  Answered on 7/1/2018 by InyoPools Product Specialist Lennox H.

Hi, Jay. This B2859 motor is the direct replacement for Part # 7-F56AA13A04-25. 
 Reply


?     Asked on 5/29/2018 by

I need to replace a Century Centurion motor part 7-193987-24, type CX, Frame Y56Y, PH-1, HZ 60, RPM 3450, Volts 230/115 , AMPS SF 11.2/22.4, Time -Cont, ENCL- DP, Form KJM, Code K, INSUL Class B, AMB 50. What is replacement motor info?
 Reply

A  Answered on 5/29/2018 by InyoPools Product Specialist Lennox H.

Hi. This B859 can be used as a replacement for Part # 7-193987-24. 
 Reply


?     Asked on 5/29/2018 by doug

which pump and capacitor would replace a Century O-193987-24? Thnx.
 Reply

A  Answered on 5/29/2018 by InyoPools Product Specialist Lennox H.

Hi, Doug. You can use this B859 motor as a replacement. The replacement Capacitor is p/n 628318-308
 Reply


?     Asked on 5/27/2018 by Mike

I purchased a replacement motor for my pool pump (P/N B859 replaced the original F56AA13A04). I'd like to rebuild the old one as a back up. Can you tell me what bearing part numbers go with this pump? Thanks, Mike
 Reply

A  Answered on 5/27/2018 by InyoPools Product Specialist Patrick P.

Hi Mike, You would need two 203 Motor Bearings. We do have these two Bearing Videos which should help you out when you tackle this project. Video #1 How to Replace Pool Motor Bearings and Video #2 How to Replace Pool Motor Bearings.
 Reply


?     Asked on 4/20/2018 by David

I have an AO smith pump SP3215Z2ME, part 7-K56AA24A04-05, y56Y, 2.5 HP, two speed pump i need to replace. Do you have a suitable replacement?
 Reply

A  Answered on 4/20/2018 by InyoPools Product Specialist Parker B.

Hi David. This will be the most suitable replacement for your motor. Motor, 2hp Maxrate 2-speed Tristar 208/230v (, sp3215z2mer) - SPX3215Z2MER and please do not forget to replace the shaft seal. If you need assistance identifying your shaft seal you may contact our office with the full model number of the pump.
 Reply


?     Asked on 3/5/2018 by robert johnson

Hi. I have a Century Centurion spa pump, that sounds like it's in the early stages of bearing wear. Looking to get a replacement motor to have on standby. What I have: CAT B2842 Serial 133103M Part 7-196256-06 Type CX FR Y56Y HP 1.5 SF 1.47 PH 1 HZ 60 RPM 3450 VOLTS 208-230 AMPS SF 9.6- 8.8 TIME CONT ENCL DP FORM KJM CODE H..... Do you have a recommendation? Thanks.
 Reply

A  Answered on 3/5/2018 by InyoPools Product Specialist Kevin G.

Hello, the replacement motor that you will need is the B842. Along with this, you will need to purchase a shaft seal and that is determined by which model pump you have. 
 Reply


?     Asked on 10/12/2017 by robert c snyder

I have a Pentair WhisperFLow pump and need a new 2 HP motor. What is the correct motoor for this pump. B855 or B859.
 Reply

A  Answered on 10/12/2017 by InyoPools Product Specialist Lennox H.

Hi, Robert. Between the B855 and B859 motor you can use either, the difference is that the B855 is rated for 230 volts only and the B859 is rated for 115/230 volts. Also, confirm the service factor (SF) of your existing motor, both of these motors have an SF of 1.10. I will also recommend that you get the Whisperflo Tune Up Kit - GOKIT32 or GOKIT32SALT
 Reply


?     Asked on 9/14/2017 by

I need to replace the motor on my Pentair WF-28, 1.1 SF, 2 HP pump. The almond pump does not seem to have the original motor but a black A.O. Smith motor which might have been replaced by the previous owner. The label from the motor is not available. Which motor should I order? B859/B2859 OR B855/2855? What is the difference between the two. What additional seals/kits will I need? This is the first time I am doing it by myself.
 Reply

A  Answered on 9/14/2017 by InyoPools Product Specialist Lennox H.

Hi. I would recommend the B859/B2859 since it's a dual voltage motor if you're not sure of the operating voltage. The B855 motor is rated at 230 volts only and the B859 motor is rated at 115/230 volts. You will also need to get the Whisperflo Tune Up Kit - GOKIT32 or GOKIT32SALT
 Reply


?     Asked on 7/23/2017 by Ralph

I cant seem to find a replacement for Century Centurion Part 0-193987-24. Will your part B859 work. =the motor fits into a Jandy pump PHPM2.0 2.00X1.13=2.25
 Reply

A  Answered on 7/24/2017 by InyoPools Product Specialist Alex V.

Ralph, There are several options for a replacement motor. If you are replacing a 56Y frame motor, this will be an exact replacement. If you are replacing a 48Y frame motor, you would need the USQ1202. Please be sure to replace the shaft seal when you replace the motor. 
 Reply


?     Asked on 7/18/2017 by Steve

Hello I have a Pentair Superflo SF- N1- 2A /340040 with 177476 what is the correct replacement pump and what other parts kit should I order. Thank you
 Reply

A  Answered on 7/18/2017 by InyoPools Product Specialist Lennox H.

Hi, Steve. This Century B859 Motor along with the Superflo Tune Up Kit - GOKIT78 are the parts you will need to get your pump running again. 
 Reply


?     Asked on 7/16/2017 by

I have a Hayward SPX3215X20Z1PE with a century 7-F56AA13A04-25 2-HP MOTOR. Is this motor a direct replacement for this motor and pump.
 Reply

A  Answered on 7/18/2017 by InyoPools Product Specialist Lennox H.

Hi. The SPX3215Z1MR motor is the direct replacement for the SPX3215X20Z1PE.
 Reply


?     Asked on 6/18/2017 by Bob Parrott

I have a A.O. Smith 7-F56AA13A04-25. I just want to make sure this is a direct replacement .
 Reply

A  Answered on 6/19/2017 by InyoPools Product Specialist Lennox H.

Hi, Bob. This Century B859 Motor is the direct replacement for Part # 7-F56AA13A04-25.
 Reply


?     Asked on 2/25/2017 by

I have an old worn out Pool and Spa Duty motor with the following information: Part: 7-196256-06 Serial: 011103M Type: CX FR: Y56Y HR: 1.5 What would be proper replacement motor and will I need to replace the shaft seals and/or other parts before I can move forward?
 Reply

A  Answered on 2/27/2017 by InyoPools Product Specialist Scott W.

Do you have the model of your pump, not the motor? If not, if you could attach a picture of the complete pump so I can identify what you have to make things easier finding the motor and seals.
 Reply


?     Asked on 2/16/2017 by Lee

My motor part number is 0-193987-24, just double checking to make sure this is the correct replacement, it will be running A Jandy Pro Series pump model number PHPM2.0. Do i need any other parts to complete my rebuild?
 Reply

A  Answered on 2/16/2017 by InyoPools Product Specialist Hector F.

That is the correct motor replacement and we advise to replace the shaft seal, back plate o-ring and the diffuser/impeller hardware. You may need the old or new style shaft seal. If the serial number on your front pump housing reads with a Pxxxxx or earlier then you would use the old style part number 5020-086. If not then use the new style part number 5020-087.
 Reply


?     Asked on 1/4/2017 by Mike C

Originally asked: "I have a AO Smith with Part# O-193987-24 Rated 2.00 X 1.13 = 2.26 HP. Will this fit as a replacement?". Thanks for the quick response, and sorry for the delayed reply. The filter I've got is a Flow Pro FHPM2.0 "Self Priming".
 Reply

A  Answered on 1/4/2017 by InyoPools Product Specialist Scott W.

Yes, that would be the replacement motor. Just make sure you replace the shaft seal when you do the motor installation as well. That part number is 5020-087.
 Reply


?     Asked on 12/28/2016 by Mike C

I have a AO Smith with Part# O-193987-24 Rated 2.00 X 1.13 = 2.26 HP. Will this fit as a replacement?
 Reply

A  Answered on 12/28/2016 by InyoPools Product Specialist Adam Y.

Good afternoon Mike, Yes this will be the correct replacement. If you can let me know what type of Pump this is going onto. Then I can let you know what seal kit you need.
 Reply


?     Asked on 8/27/2016 by

I have a Century Centurion A.O. Smith Part 7-193994-06 1081 Pool Pump Duty Mount Horiz with vent Holes Down Motor and need a replacement is there new part numbers to purchase by it is a 3450 RPM, 230 Volt, 8.8 amp motor
 Reply

A  Answered on 9/14/2016 by InyoPools Product Specialist Lennox H.

Hi, The B859 or the B842 motor can be used as a replacement for p/n 7-193994-06.
 Reply


?     Asked on 6/24/2016 by

I have ordered a new a. o. Smith pump motor. Does new motor include a new gasket? Should I order a GOKIT or just order a new gasket. The pump will be attached to PENTAIR pump.
 Reply

A  Answered on 6/29/2016 by InyoPools Product Specialist Lennox H.

Hi, The replacement motors do not include any gaskets. We will need to know the model of the Pentair pump in order to get you the correct gokit or seals.
 Reply


?     Asked on 6/16/2016 by Andrew

I have a 7-177476-20 2hp motor and need a capacitor for it. What would be the pn?
 Reply

A  Answered on 6/16/2016 by InyoPools Product Specialist Patrick P.

Hi Andrew, can you pull any part #'s or specs. off of your current capacitor? If so could you email those to us as that would help us determine the capacitor you need.
 Reply


?     Asked on 5/14/2016 by Blake

I need to replace my A O Smith motor with part no: 7-177803-02. I will also need the pump and the strainer. This was a 105 hp motor. What motor replaces this and how much?
 Reply

A  Answered on 5/16/2016 by InyoPools Product Specialist Lennox H.

Hi Blake, The BN50 will be the correct replacement for p/n 7-177803-02. We will need to know the model of the pump housing in order to locate the replacement strainer.
 Reply


?     Asked on 4/6/2016 by Rick Reed

17+ yr old pump motor for waterfall stopped working. Can you pls help me with the exact replacement motor to buy? What other parts do I need? Only info I have: MagneTek Century Centurion Pool and Spa Duty. PART: 7-177476-20 AMPS: 11.2/22.4, FR: Y56Y, RPM: 3450, TYPE: CX, HZ: 60, TIME: CONT, CODE: G, ENCL: DP, PH: 1, SERIAL: BT9-30, INSUL CLASS: B, AMB: 40 C FORM: KJM,
 Reply

A  Answered on 4/7/2016 by InyoPools Product Specialist Lennox H.

Hi Rick, The B859 motor is the correct replacement motor for P/N 7-177476-20.
 Reply


?     Asked on 3/14/2016 by John m

I have a 13 year old century centurion 177476-20 on my spa. Breaker trips after about 3 minutes of operation. Would you suggest I rebuild or replace.
 Reply

A  Answered on 3/17/2016 by InyoPools Product Specialist Lennox H.

Hi John, With the motor being 13 years old I would recommend replacing it.
 Reply


?     Asked on 12/4/2015 by Matt

I need the replacement bearings part number(s) for this motor. Can you help me on this?
 Reply

A  Answered on 12/7/2015 by InyoPools Product Specialist Lennox H.

Hi Matt, This motor uses (1) 304 Bearing (6304) on the shaft end and (1) 203 Bearing (62032RS) on the opposite shaft end.
 Reply


?     Asked on 11/10/2015 by Tony

I need to replace a motor a A.O. Smith Centurion with following specs: part 7 -193987 -24 type CX FR Y56Y HZ60 RPM3450 Volts230/115 AMPS SF 11.2/22.4 TIME CONT ENCL DP FORM KJM CODE K Insul Class B AMB 50C 1081 Pool Pump duty mount Horizwith vent holes down The serial number is 139093M. It is on a Jandy pump. The info on the Jandy label says Rated HP x S.F = Total Motor HP. 1.50 X 1.50 = 2.25
 Reply

A  Answered on 11/13/2015 by InyoPools Product Specialist Lennox H.

Hi Tony, The A.O. Smith 2 HP, 56Y Frame, Up-Rate Motor 230/115 (B859) or the A.O. Smith 1.5 HP Standard Motor - Full Rate (B858) would be suitable replacements for the motor you currently have.
 Reply


?     Asked on 8/12/2015 by

Hello, I need to know the exact specifications for the motor needed for a Jandy PHPM2.0, Serial # R09FH0345. I think this is the correct one, but I need to be absolutely sure. Thanks.
 Reply

A  Answered on 8/14/2015 by InyoPools Product Specialist Lennox H.

Hi, The A.O. Smith 2 HP, 56Y Frame, Up-Rate Motor 230/115 (B859, B2859) would be the correct replacement motor for your Jandy PHpm2.0 Pump. You would also need to replace the OEM Shaft Seal (R0445500).
 Reply


?     Asked on 7/4/2015 by pedro Arrubla

Please confirm my order for a new motor with reference: A.O. Smith 2 HP, 56Y Frame, Up-Rate Motor 230/115 (B859, B2859), it WILL BE THE REPLACEMENT for my motor part # 7-193987-24 serial # 267073M Type CX FR Y56Y PH 1 Hz 60 Please email me to reconfirm or send me the exact replacement motor, asap best regards pedro
 Reply

A  Answered on 7/5/2015 by InyoPools Product Specialist Patrick P.

Hi Pedro, The B859 (B2859) would be the direct replacement motor for your 7-193987-24 motor.
 Reply


?     Asked on 6/13/2015 by Bob

Is this the proper motor for a Pentair WF-28/011774? The motor # on the label is 177476.
 Reply

A  Answered on 6/14/2015 by InyoPools Product Specialist Alex V.

Bob, The B2859 is the correct kit for the pentair WF-28 pump. I would also recommend the Whiperflo tune up kit.
 Reply


?     Asked on 5/19/2015 by Joe

What is the sizing requirement for HP on a motor for a pool of 11-12K gallon size? I was told that they (a company that change owners in the middle of my pool construction) had installed a larger than needed HP motor.
 Reply

A  Answered on 5/20/2015 by InyoPools Product Specialist Lennox H.

Joe, Here's a step by step guide on How to Size a Pool Pump for Your In-Ground Pool. Once you have calculated what size pump you need then you can make the necessary changes to your current pump.
 Reply


?     Asked on 4/21/2015 by JR Dobson

Do you have a replacement form1.5 hp part 7 177476 20? 1081 pool pump duty mount horizontal. What If so what else would I need and how $$? JR Dobson
 Reply

A  Answered on 4/22/2015 by InyoPools Product Specialist Robert M.

Hello JR - The replacement motor is model B858. The cost is $264.99.
 Reply


?     Asked on 4/18/2015 by Kim

What tune-up kit do I use with this motor?
 Reply

A  Answered on 4/19/2015 by InyoPools Product Specialist Alex V.

Kim, The tune up kit is based on the pump housing model not the motor. If you can get us the pump model, we can help you find the correct kit
 Reply


?     Asked on 1/12/2012 by Guest

Why should I purchase a Tune Up Kit?
 Reply

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.
 Reply


?     Asked on 1/12/2012 by Guest

Why do I need to purchase a new shaft seal?
 Reply

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.
 Reply


?     Asked on 1/11/2012 by Guest

What is Service Factor?
 Reply

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.
 Reply


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