Century 1.5 HP Full Rate NorthStar Replacement Motor - SN1152



Part # SN1152

By Century Motors

  4.84 Average  



Part # SN1152

Warranty 1 Year

Alternate Part #'s 187582, 193233, 193686, 998003, ESN1152, SN1152, SP1615Z1BNS, SP1615Z1BNSC, SPX1615Z1BNS, 35-150-3150, AOS-60-6001, AOSSN1152

Product Description

Full rated 1.5 HP motor; 3450 rpm, 208-230/115; 11.0-10.2/20.4 full load amps; 1.60 service factor; 56J frame

Note: NOT California Title 20 Compliant. 

California Title 20 Compliant Options:

  • Dual Speed - SPX1620Z2M
Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

Motor Name:
1.5 HP SN1152 or SP1615Z1BNSCReplacement Pool Motor
1.5 HP
3450 RPM
208 - 230/115 V
11.0 - 10.0/20.4 amp
Service Factor:
Total HP:
2.4 HP
Stock #:
SN1152 or SP1615Z1BNSC
Dimension Letter:
13.85 in.
Commonly Used On:
Hayward Northstar Pump
Pump Model:
NOT California Title 20 Compliant

?     Asked on 10/25/2022by Don McGuire

I need to find the proper replacement motor for the attached motor nameplate.... I found one on your site but it listed a "Type C" and my nameplate says "Type CX"


A  Answered on 10/25/2022 by InyoPools Product Specialist Hector F.

Hello Don, yes this is the correct replacement motor for your motor part number 193686. We also recommend replacing the seals and gaskets when replacing a pool pump motor. Here is our "Finding the Tune-Up Kit for Your Pool Pump" guide that should assist you with that. 

?     Asked on 12/2/2021by Will Duggan

Motor works great! Thank you. However, I think the gasket didn't seal well. Which gasket would I purchase that would fit, before I take it apart, grease the new gasket, and install again? Thank you in advance.


A  Answered on 12/3/2021 by InyoPools Product Specialist Stephen B.

Thank you for contacting Inyo Pools, The Housing Gasket - G-95 or to replace all the gasket and seals Tune Up Kit Hayward Super Pump - GOKIT3 are the correct parts for your pool pump.

?     Asked on 5/4/2020by John Van Cott

I have a Northstar pump motor by a.o.smith, Century Centurion, SP1615-Z-1-BNSC, Serial BZ07-23, HP 1.5, SF 1.60, Code K, RPM 3450, Volts 208-230/115, HZ 60, PH 1, encl DP, Amps SF 11.0-10.2/20.4. (Pump Serial Number is SP4015ns) BASED ON THE ABOVE I NEED A REPLACEMENT MOTOR. PLEASE ADVISE WHAT TO ORDER. THANKS, JOHN


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

John, The SN1152 is the correct replacement motor. I would also recommend replacing the shaft seal when you change out the motor. 

?     Asked on 4/9/2020by Werner Nagel

Can I use the kit spx4020ckit with the sn1152 Pump or works the sp4015ckit better

A  Answered on 4/10/2020 by InyoPools Product Specialist Matt S.

The Hayward Impeller Kit, 2.0 THP - SPX4015CKIT is the correct impeller kit for the SN1152. The Hayward Impeller Kit, 2.5 THP - SPX4020CKIT is too large for the 1.5 HP fullrate motor.

?     Asked on 9/10/2019by Magnum Force Inc. - Ron Jenkins

What is the secret to figuring out what year your pump is and why is it hidden?

A  Answered on 9/10/2019 by InyoPools Product Specialist Joe S.

 Here is the How to Read Date Codes on Motor Nameplates & Labels

?     Asked on 5/19/2019by D.Doyle

I have a A.O.Smith Pool pump motor. Part # 7-193233-02 Serial # BZ 11-12. The motor is separated from the pump. When power is applied to the motor it hums, but does not spin. If the shaft is spun manually, the motor spins and sounds & appears to be operating normally. Is this something that can be repaired with parts and service? Or will it be necessary to replace the motor ?

A  Answered on 5/20/2019 by InyoPools Product Specialist Michelle B.

Hello, You can try to replace the capacitor, http://www.inyopools.com/Products/07501352014036.htmIf that does not fix the motor, you will need to replace.

?     Asked on 1/4/2015by billy shores

What is up rated and full rated mean when it comes to 1.5 hp Hayward Northstar pump?

A  Answered on 1/5/2015 by InyoPools Product Specialist Robert M.

Hello Billy - The full rated motors have a higher service factor and the result is a higher effective horsepower. You will need to look at the service factor rating of your current motor. If it is 1.6, you will need a full rated motor. If it is 1.25, you will need the uprated motor.

?     Asked on 10/24/2014by Inyo Visitor


A  Answered on 10/24/2014 by InyoPools Product Specialist Brian M.

I am sorry, but contacting the manufacturer is the only way to get that specific information .They have yet to share it with us. Their number is 866-887-5216.

?     Asked on 1/18/2012by Guest

I'm trying to find a replacement motor for my pool pump but my model number doesn't match what you have listed as the model number. My model number begins with a C48 and yours begins with an SP. Please help.

A  Answered on 1/18/2012 by InyoPools Product Specialist Patrick P.

What we have listed on our chart pages is the pump model number. The model number you have will just identify the motor. If you look on the plastic housing on the pump there should be a sticker which will have the pump model number. You can usually find this by the discharge port on the pump. Once you locate it you can choose the correct replacement motor. Be certain to change the shaft seal and gaskets as needed. You can use our >How to guide if you need help. 

?     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 1/12/2012by 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 1/11/2012by 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.


Review Summary

 (Average 4.84  out of 5 stars)
6 Rating
5 star:
4 star:
3 star:
2 star:
1 star:

The Most Helpful Review

The Most Recent Reviews