By Century Motors



Part # B848

Warranty 1 Year

Manufacturer Code B2848

Dimensions 14" L x 9" W x 6.5" D

Alternate Part #'s 0-193986-24, 0-196261-24, 1-177080-24, 10-168887-06, 10-168887-86, 10-177080-24, 10-177475-20, 1103665401, 12504, 135106, 164653, 164962, 168453, 168887, 177080, 17708000, 177216, 177475, 182789, 190022, 193986, 196336, 2K444, 35-40, 35-5340, 355022S, 355023S, 355340, 355340S, 5KC38SN2510BX, 5KC39UN2522X, 6K421, 7-168453-23, 7-168453-24, 7-168887-06, 7-177080-24, 7-177475-20, 7-177475-28, 7-196336-20, 717708024, 75234, 8-164653-20, 8-168453-20, 8-168453-23, 8-168453-24, 8-168887-06, 8-177080-24, 8-177080-40, 8-177475-20, 8-177475-28, A100EH, A100EHL, B2848, B2848V1, B746, B848, C1306, C48L2EB101A2, EB848, ESQ1102, MGT605112, P713, R0479311, S88-381, SQ110, SQ1102, SQD10FL1, V12504, AOSB2848V1, CRMB2848V1

Product Description

Century Centurion replacement motor for Pentair WhisperFlo and Challenger full rated pumps. Specifications: HP = 1, RPM = 3450, Voltage = 115/230, Amps = 16.0/8.0, Service Factor = 1.65, Frame = 56Y, Shaft = Threaded. *Please Note: This is the correct replacement motor for the Challenger 1 HP full-rated pump.

Note: NOT California Title 20 Compliant. 

Dual Speed Options: (Not Compliant)

California Title 20 Compliant Option:


Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

1.0 HP
115/230 V
5.9/11.8 amp
Service Factor:
Total HP:
1.65 HP
Century (A.O. Smith)
3450 RPM
Commonly Used On:
Pentair WhisperFlo and Challenger
NOT California Title 20 Compliant

?     Asked on 1/11/2012by 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.

?     Asked on 1/12/2012by 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 1/12/2012by 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 1/19/2012by 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 2/16/2012by 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.


Est. Repair Time

1 to 2 hrs

Tools Needed

Screwdriver, Socket Set, Wrench Set, 1/2 inch socket and open wrench

2     0

Pool Pump Motor Finally Quit

Written on 4/20/2019 by Guest

After 10 years of service my pool pump motor finally quit. I had replaced the seals and bearings once a few years ago. I turned off the power at the breaker removed the motor and end of pump. Removed pump impeller, installed new seal on impeller and reassembled. The new motor is so quiet that I have to put my hand on it to see if it is running.

Were these instructions helpful? 


Est. Repair Time

2 to 4 hrs

Tools Needed

Screwdriver, Pliers, Socket Set, Wrench Set, Adjustable Wrench

1     1

Pump Motor Failed

Written on 12/30/2018 by Guest

Removed and dismantled old motor according to detailed instructions provided by INYO. A bit tricky, but all came out and new motor installed with no leaks or problems!!

Were these instructions helpful? 


Review Summary

 (Average 4.9  out of 5 stars)
39 Rating
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