Part # B852
Warranty 1 Year
Manufacturer Code B2852
Dimensions 12" L x 8" W x 6.5" D
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, feel free to use our Live Chat feature.
Compatible With
Note: NOT California Or New York Title 20 Compliant.
Other Options: (Not Compliant)
California and New York Title 20 Compliant Option:
What is Service Factor?
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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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Why do I need to purchase a new shaft seal?
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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.
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Why should I purchase a Tune Up Kit?
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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.
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How do we remove old pump. Removed all 4 bolts but pump won't disconnect from pool housing.
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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.
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will this fit a challenger pump
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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.
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Less than 1 hr
Socket Set
3 0
Step 1 Go to local pool store and get told the motor is bad and you might as well replace the pump as well... That will only be about $600.
Step 2 Check out Inyopools.com and enter in the relevant data. I found all the parts I needed and dropped them in the shopping cart... but wait, do I need this other gizmo???
Step 3 Chat with Inyopools.com. They looked at my shopping cart and ensured I had the right parts for my pump and I was now 100% confident.
Step 4 Parts arrive and I am ready to get to work.... but this pump seal, what side faces which way.
Step 5 Watch Inyopools.com videos on how to install a pump seal.
Step 6 Called Inyopools.com and the guy checked the part and the motor and we scoured over the exploded diagram and he explained to me how to install the pump seal.
Step 7 Installed pump seal and motor and plumbed everything back in. No leaks, no issues, no problem!
Less than 1 hr
Screwdriver, Socket Set, Wrench Set, Adjustable Wrench
Had a very easy disassembly and install with the pump and install kit you provided. Sent a separate message with same request....I need a pair of 3/4 hp 56 frame motors for my davits. Can you provide, would rather do business win INYO Pools.....
Thanks,
Supplied install kit and all accessories were perfect for the job!
Mike Raim
1 to 2 hrs
Screwdriver, Nut Drivers, Socket Set, Wrench Set
3 0
2 to 4 hrs
Screwdriver, Socket Set, Wrench Set
1 1
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.
The Most Helpful Review
44 6
(5 out of 5 stars) Pool Filter Motor
Reviewed By: DreamBigGoGreen from Bowie, Maryland ()
Pros: Customer service, shipping time, price and product
Cons: None that I can think of
Best of all is the wonderful customer service help provided by Inyopools. The product was here in the time specified and the price was considerably less than the 5 other companies I checked with first. The product was as specified and ordered and hasn't given me any problems to date. It was installed about a month ago.
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No problem, running fine
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Replacement for my pool pump motor exactly!
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(5 out of 5 stars) Easy install
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Motor came earlier than expected, easy install with new gasket kit , reminder , impeller screw is opposite rotation , also used a little trim adhesive to hold large gasket in place for final assembly
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(5 out of 5 stars) Perfect replacement
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Perfect replacement motor for our Pentair Superflo pump.
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(5 out of 5 stars) Works as expected.
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Works as expected.
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(5 out of 5 stars) Quiet pump
Reviewed By: Inyo Customer ()
My old pump motor started making a loud noise. Inyo advised my that it needed replacing. The instructions on their website were very easy to follow. I did have to figure out some new ground connections. The new pump is more efficient and quieter.
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