Century 1.5 HP Square Flange 56Y Full Rate Motor - B849



Part # B849

  4.75 Average  



Part # B849

Warranty 1 Year

Alternate Part #'s 10-168345-25, 10-168787-07, 1103675401, 135107, 164960, 168787, 177477, 177896, 17789600, 190023, 193268, 35-5333, 7-168345-25, 7-168787-07, 7-168787-87, 7-177896-22, 717789622, 8-168345-25, 8-168787-01, 8-168787-02, 8-168787-06, 8-168787-07, A0104700, A100FH, A100FHL, B747, C1307, MGT605113, S88-382, SQ115, _B849, AOSB849, B2849, MGT-60-5113

Product Description

Century 1.5 HP Square Flange 56Y Full Rate Motor - B849

Note: NOT California Title 20 Compliant. 

California Title 20 Compliant Options:

Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

Motor Name:
1.5 HP B849 & B2849 Replacement Pool Motor
1.5 HP
3450 RPM
230 V
10 amp
Service Factor:
Total HP:
2.25 HP
Stock #:
B849 or B2849
Overload Protector:
Dimension Letter:
13.4 in.
Commonly Used On:
Pentair, Sta-Rite, Jandy and Waterway

?     Asked on 5/5/2022by Inyo Visitor

is this a direct replacement for jandy b864se ?

A  Answered on 5/5/2022 by InyoPools Product Specialist Craig C.

Hello.  The Century 1.0 HP Square Flange 48Y Full Rate EE Motor - QC1102 is the direct replacement motor for the B864SE.  

?     Asked on 9/9/2021by Randy Hutson

What is the warranty-one year I assume??

A  Answered on 9/9/2021 by InyoPools Product Specialist Craig C.

Hello Randy.  The Century Motors 1.5 HP Full Rate Motor model B849 has a 1-year manufacturer's warranty covering material/manufacturing defects.

?     Asked on 8/23/2021by James

I need to get new pool pump motor for old Centunon for PAC-Fab 8-168345-25. Is this what motor I need?


A  Answered on 12/30/2021 by InyoPools Product Specialist Joe S.

Good afternoon, yes the Century 1.5 HP Square Flange 56Y Full Rate Motor - B849 would be the correct replacement motor.

?     Asked on 8/15/2021by Peter Hagen

What would be replacement pump for Century AO Smith Part#: 7-193994-06 Jandy Stealth SHPF 1.5

A  Answered on 1/14/2022 by InyoPools Product Specialist Joe S.

Good day, the correct motor would be the Century 1.5 HP Square Flange 56Y Full Rate EE Motor - B2842.

?     Asked on 6/29/2021by Ernesto Saucedo

I have Century B849 230v motor, can it be converted to 115v

A  Answered on 7/2/2021 by InyoPools Product Specialist Robert M.

The B849 is 230v only and cannot be converted to run on 115V.

?     Asked on 5/25/2020by Dennis

I have to replace a motor on a Purex triton Whiosper Flo Model WFE-6 pump, the motor I am replacing is a Century B849. It appears the B2842 or the B849 will work? Which is the best option and/or are there other options for motors that would be better?


A  Answered on 11/3/2020 by InyoPools Product Specialist Hector F.

Hi Dennis, yes either of these motors are options for your motor part number 177896. Another motor option I would suggest is the variable speed motor ECM27SQU. Also, it is recommended to replace the seals when replacing a motor. For your Pentair Whisperflo pool pump in a chlorine swimming pool, it would be the GOKIT32 and for a saltwater pool, it would be the GOKIT32SALT

?     Asked on 5/5/2020by WIlliam

Could you tell me the differences between the Century B849 and the Century B2842? Thanks

A  Answered on 5/6/2020 by InyoPools Product Specialist Alex V.

William, The B842 motor has a lower amp rating which means it will cost less to operate. They both have the same total horsepower. 

?     Asked on 8/28/2019by Kristal Fenske

Does this motor have a plug to plug into an outlet?

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

Hi, Kristal. It does not, you will have to either hardwire it or provide the power cord. 

?     Asked on 5/9/2019by Matt

Hi, my current motor is a Centurion 8-168787-07 seen below. The spaces for HP and SF are left blank in the label. Is this pump motor the correct replacement?


A  Answered on 5/10/2019 by InyoPools Product Specialist Michelle B.

Hello, Yes, that would be the correct motor.

?     Asked on 4/2/2019by KM

Can you tell me the part numbers for both the run and start capacitor for the A.O. Smith motor B849? Thanks.

A  Answered on 4/4/2019 by InyoPools Product Specialist Hector F.

This motor only has a run capacitor part 5270-05

?     Asked on 9/4/2018by Chris

I need to replace this motor on a waterfall pump. Is there a more energy efficient option?

A  Answered on 9/6/2018 by InyoPools Product Specialist Lennox H.

Hi, Chris. The Century B2842 is an energy efficient option to this B2849.

?     Asked on 12/19/2016by Jim

Adam, Thank you for your assistance. I think the best is for me to buy a new motor rather than tackle the bearings. Do I also need the repair kit which has the various O rings, etc. ? Thanks, Jim

A  Answered on 12/20/2016 by InyoPools Product Specialist Adam Y.

Good morning Jim, Yes I would recommend replacing the seal and o-rings. The shaft seal is the most important but since you have it out you might as well replace everything. If you let me know what type of pump you have I can refer the correct kit.

?     Asked on 12/13/2016by Jim

I have the AO Smith Part #7-177896-22, HP 1.5, SF 1.50 and FR Y56Y. Recently it started making a very loud noise while it is pumping. It continues to pump the water for my pool, but makes this loud noise. Can the pump be repaired or does it need to be replaced?

A  Answered on 12/13/2016 by InyoPools Product Specialist Adam Y.

Good afternoon Jim, Sounds like bearings. This is repairable but a little technical we do sell the bearings and have a how to guide on our site with a video. You can purchase the bearings also part#6203. I would recommend taking it to a professional motor repair shop if you are unsure.

?     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.


Est. Repair Time

Less than 1 hr

Tools Needed

Screwdriver, Wrench Set

Old motor was loud and noisy.

Written on 5/24/2021 by Guest

I ordered the new motor and replaced it very easily with the new one. Once the motor was installed, I turned on the pool and it worked perfectly without any problems.

Were these instructions helpful? 


Review Summary

 (Average 4.75  out of 5 stars)
4 Rating
5 star:
4 star:
3 star:
2 star:
1 star:

The Most Helpful Review

The Most Recent Reviews