A.O. Smith 3/4 HP Square Flange 56Y Up Rate Motor - B2852

$156.99

IN STOCK
FREE SHIPPING

Part # B852

By Magnetek

  4.75 Average  

Details

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Part # B852

Warranty 1 Year

Manufacturer Code B2852

Dimensions 12" L x 8" W x 6.5" D

Alternate Part #'s 0-193984-25, 10-177214-24, 1103645400, 168451, 16858, 177214, 17721400, 177842, 177970, 1863580J, 187331, 193266, 193984, 196232, 196237, 196248, 54002, 5KC36MN2533BX, 5KC36MN2533X, 7-177214-24, 7-186236-20, 7-193266-20, 717721424, 8-177214-24, 8-177970-20, 8-193266-20, 90106915, A0104800, A100DL, A100DLL, B2852, B691, C1244, C48J2EC105, EB852, F56AA36A01, P716, SQ107U, SQD75UP1, USQ1072, V54002

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.

Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

Motor Name:
3/4 HP B852/B2852 Replacement Pool Motor
HP:
.75 HP
Speed:
Single
RPM:
3450 RPM
Volts:
115/208 - 230 V
Amps:
10.8/5.4 amp
Service Factor:
1.25
Total HP:
.94 HP
Frame:
56Y
Stock #:
B852/B2852
Shaft:
Threaded
Overload Protector:
Auto
Dimension Letter:
C
Dimensions:
12.4 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
Model:
Whisperflo & Challenger
Pump Model:
WF-23 & CFII-NI-3/4A
Top

?     Asked on 7/28/2019 by

Will this pump replace my Jandy skimmer pump—Model FHPM.75?
 Reply

A  Answered on 7/28/2019 by InyoPools Product Specialist Lennox H.

Hi. Yes, this B2852 motor is the correct replacement for the Jandy FloPro FHPM.75 pump. 
 Reply


?     Asked on 7/23/2019 by Brandy

Will this motor replace a magnetek Cat B227SE part # 10-184980-22?
 Reply

A  Answered on 7/23/2019 by InyoPools Product Specialist Hector F.

The 5210X is the replacement single speed motor for your model.
 Reply


?     Asked on 7/20/2019 by david

My friend has a 2008 Pentair whisperflow 3/4 Horsepower pump wfe-3 which is having noises from the motor. From the specs, this ao smith motor seems to be the correct replacement alternative to the pentair. Could you please confirm? Also, which gasket kit would be appropriate. Thanks for your advice

 Reply

A  Answered on 7/20/2019 by InyoPools Product Specialist Lennox H.

Hi, David. You will actually need the B2661 motor along with the Whisperflo Tune Up Kit - GOKIT32 or GOKIT32SALT
 Reply


?     Asked on 6/25/2019 by Corey Jacob

Are these normally hot to the touch? Just installed mine an hour ago and it feels very hot.
 Reply

A  Answered on 6/25/2019 by InyoPools Product Specialist Hector F.

Yes, these motors run at approximately 140 degrees. If it exceeds normal operating temperature the thermal overload load will cause it to shut down. 
 Reply


?     Asked on 6/25/2019 by Stuart

This motor appears to be an appropriate replacement for the one on my Jacuzzi pump that services the waterfall feature of my pool. The only difference is that mine does not have the small housing on the top of the motor. I assume this is a capacitor? Will I need a special tool to separate the pump from the motor?

 Reply

A  Answered on 6/25/2019 by InyoPools Product Specialist Matt S.

Yes, the hump on the motor is the capacitor housing, going by your pictures; it should not interfere with your install. There is no need for extra tools, following the instruction in this guide and you shouldn't have a problem: How To Replace the Motor on Your Pool Pump.
 Reply


?     Asked on 6/24/2019 by Deolinda

Which motor do I need to replace my old sta rite dyna glas 3/4 hp motor?

 Reply

A  Answered on 6/24/2019 by InyoPools Product Specialist Matt S.

Hello - the 3/4 HP Square Flange 48Y Full Rate EE Motor - QC1072 is the replacement motor for your K48K2PA105C1.
 Reply


?     Asked on 6/18/2019 by Jon Graef

Which motor replaces the one pictured?

 Reply

A  Answered on 6/18/2019 by InyoPools Product Specialist Lennox H.

Hi, Jon. The Letro Booster Pump Motor - B667 is the correct replacement. 
 Reply


?     Asked on 5/12/2019 by Bob

I need a replacement motor for a Centurion for Pac Fab motor 168451-24 3/4hp SF 1.27. What motor should I get?

 Reply

A  Answered on 5/12/2019 by InyoPools Product Specialist Hector F.

The replacement single speed motor is model SQ1052
 Reply


?     Asked on 10/29/2018 by Russell

what is the correct replacement motor for a Pentair WF 23 3/4 hp, 1.27 service factor. The part number on the motor is 75232. Another number on the motor looks like 86236-20.

 Reply

A  Answered on 10/29/2018 by InyoPools Product Specialist Lennox H.

Hi, Russell. This B2852 motor is the correct aftermarket replacement for your motor. 
 Reply


?     Asked on 9/10/2018 by Gordon Pitney

I need a replacement motor for a 6 year old Spa-Rite 3/4 HP Super Max motor Part # 355371S what is the best quality motor to get that is easily replaced
 Reply

A  Answered on 9/10/2018 by InyoPools Product Specialist Lennox H.

Hi, Gordon. This Century B2852 motor is a great quality replacement. I would also recommend that you get the SuperMax Tune Up Kit -  GOKIT78
 Reply


?     Asked on 8/11/2018 by

Is this the correct replacement motor for a whisperflo model WF-23. Do you recommend replacing the shaft seal if I replace the motor even though the current seal is less than a month old? Thanks! Bill
 Reply

A  Answered on 8/11/2018 by InyoPools Product Specialist Lennox H.

Hi, Bill. This B852 is the correct replacement motor for the WF-23 pump. The seals are all available in the Whisperflo Tune Up Kit - GOKIT32 or GOKIT32SALT
 Reply


?     Asked on 5/31/2018 by Janice

Do you know the gallons per minute on this motor?
 Reply

A  Answered on 5/31/2018 by InyoPools Product Specialist Lennox H.

Hi, Janice. The flow rate is calculated using the pump and motor info, not the motor only. 
 Reply


?     Asked on 5/15/2018 by Jonathan powell

How long is warranty on this motor? And do y'all offer an extended warranty?
 Reply

A  Answered on 5/15/2018 by InyoPools Product Specialist Charlie R.

Jonathan, The motor comes with a standard one year warranty. No, we do not offer extended warranties. 
 Reply


?     Asked on 9/28/2017 by Vanessa

Does this motor fit a Jandy SHPM .75?
 Reply

A  Answered on 9/28/2017 by InyoPools Product Specialist Lennox H.

Hi, Vanessa. Yes, this B852 motor will fit the Jandy SHPM.75 pump. 
 Reply


?     Asked on 9/5/2017 by

What is the capacitor I need for a AO smith B2852
 Reply

A  Answered on 9/7/2017 by InyoPools Product Specialist Lennox H.

Hi. This B852 motor uses the 30MFD 370VAC Run Capacitor - 628318-308
 Reply


?     Asked on 7/28/2017 by Patrick

Can you tell me the proper run capacitor for this motor...the label on the one in it now is unreadable. Thanks.
 Reply

A  Answered on 7/28/2017 by InyoPools Product Specialist Lennox H.

Hi, Patrick. This B852 motor uses the 25 MFD, 370 Volt Run Capacitor
 Reply


?     Asked on 6/10/2017 by Paige

Will this motor replace a Pac-Fab Challenger 3/4 HP 355338?
 Reply

A  Answered on 6/14/2017 by InyoPools Product Specialist Lennox H.

Hi, Paige. I was able to confirm that this motor will replace the following Challenger Motors, 35-5384 or 355019S. The motor will have a Century p/n that we can use to locate the correct motor.
 Reply


?     Asked on 5/1/2017 by Dennis

Is there a 2-speed or a variable speed motor that could replace this motor?
 Reply

A  Answered on 5/1/2017 by InyoPools Product Specialist Lennox H.

Hi, Dennis. You can use the B2980T dual speed motor w/ controller or the ECM16SQU VS motor.
 Reply


?     Asked on 4/19/2017 by Penny

Need a replacement motor for centurion switchless motor, this motor is old and I only have some info the rest has disappeared, pool and spa duty, hp3/4, type cs, time cont, code j, encl dp, sp 1.25, amps sf5.4/10.8, serial bu3-21, insul class b, hz 60.ph1. Can you please help me? I think this is the replacement but want to be sure. Thanks
 Reply

A  Answered on 4/19/2017 by InyoPools Product Specialist Lennox H.

Hi, Penny. Based on the info provided this B852 motor can be used as a replacement. However, to be sure please send photos of the motor label and pump to upload@inyopools.com.
 Reply


?     Asked on 2/19/2017 by Patrick

Do you have anything for corrosion prevention for the motor. Living on the Gulf of Mexico, the salt even corrodes glass!
 Reply

A  Answered on 2/20/2017 by InyoPools Product Specialist Alan M.

Unfortunately, there is nothing we carry to prevent corrosion on the motor. I would recommend a Protective Pool Motor Cover - R221016 to keep the elements off of your motor as much as possible as well as not allowing runoff rainwater from the roof to fall directly on it.
 Reply


?     Asked on 11/12/2016 by Carl Hopkins

What motor do I need to replace an AO Smith 7-177449-03 3/4 HP. It goes on a Whisper Flo WFE-3 pump.
 Reply

A  Answered on 11/14/2016 by InyoPools Product Specialist Stacey M.

Hello Carl, it looks like from what your numbers match to is a 3/4 HP Motor EE - Full Rate (B661, B2661) and pump seal Tune Up Kit Pentair/Purex Whisperflo - GOKIT32. Unless you have saltwater then Saltwater Tune Up Kit Pentair/Purex Whisperflo - GOKIT32SALT.
 Reply


?     Asked on 8/13/2016 by Bob

How many capacitors does the AO Smith 3\4 hp B852, B2852 have? Know about the run capacitor on top, but is there a start capacitor in the back of the motor under the electrical cover also? Got a humming, non starting pump motor to repair, any help appreciated. Thanks.
 Reply

A  Answered on 8/21/2016 by InyoPools Product Specialist Lennox H.

Hi Bob, The B852 motor only has a run capacitor and no start switch. The only thing could be the motor windings.
 Reply


?     Asked on 6/11/2016 by

Is this the motor I need for the whisperflo 0.75 hp pump
 Reply

A  Answered on 6/12/2016 by InyoPools Product Specialist Matt S.

The Pentair WhisperFlo has four 3/4 HP variations. What is the part catalog or model number on your current motor's label?
 Reply


?     Asked on 4/19/2016 by

My old pool label reads A.O.Smith CAT serial CA04-08 Part 7-186236-20 Type CX FR:P56Y, HP---, SF---, PH 1, HZ 60, RPM 3450, Volts 230/115, AMPS 5.4/10.8, Time: CONT, ENCL: DP, FORM: KJM, CODE: N, AMB: 40. It seems like this pump will replace my old one but I wanted to make sure before I purchased this.
 Reply

A  Answered on 4/20/2016 by InyoPools Product Specialist Hector F.

Yes that is a correct motor replacement for your current model.
 Reply


?     Asked on 7/31/2015 by

will this fit a challenger pump
 Reply

A  Answered on 8/1/2015 by InyoPools Product Specialist Lennox H.

Hi, The A.O. Smith 3/4 HP, 56Y Frame, Up-Rate Motor (B852, B2852) will fit a Pentair Challenger Pump. You would also need to confirm that this motor is ok to use with your current Impeller.
 Reply


?     Asked on 5/23/2015 by

How do we remove old pump. Removed all 4 bolts but pump won't disconnect from pool housing.
 Reply

A  Answered on 5/23/2015 by InyoPools Product Specialist Patrick P.

Our Video and Step by Step Guide on How to Replace a Pool Motor goes over this pretty well. Take a look at this video and let us know if you still need help.
 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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Difficulty

Est. Repair Time

1 to 2 hrs

Tools Needed

Screwdriver, Nut Drivers, Socket Set, Wrench Set

Bearings were shot in old motor

Written on 5/24/2018 by Guest

Went to page to decide witch motor I needed. Placed order and received it next day. It took me about 1 hour to install

Were these instructions helpful? 
 

Difficulty

Est. Repair Time

2 to 4 hrs

Tools Needed

Screwdriver, Socket Set, Wrench Set

0     1

Old pump motor was getting very loud.

Written on 10/18/2017 by Guest

Gave inyopools.com all of the info off of the old motor and they sent me the perfect replacement. They also sent me an email with a video link on how to properly replace the motor. With the video and a little help from my neighbor the replacement process was a breeze.

Were these instructions helpful? 
 

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