A.O. Smith 1 1/2 HP Up Rated Northstar Replacement Motor - USN1152

$244.99

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Part # USN1152

By A. O. Smith

  5 Average  

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Part # USN1152

Dimensions 14" L x 6.5" W x 6.5" D

Alternate Part #'s 187630, 193221, 193685, 7-193685-02, EUSN1152, SP1610Z1MNS, SP1610Z1MNSC, SPX1610Z1MNS

Product Description

Uprated 1.5 HP motor; 3450 rpm, 208-230/115; 8.5-7.8/15.6 full load amps; 1.25 service factor; 56J frame

Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

Motor Name:
1.5 HP USN1152 & SP1610Z1MNSC Replacement Pool Motor
HP:
1.5 HP
Speed:
Single
RPM:
3450 RPM
Volts:
208 - 230/115 V
Amps:
8.5 - 7.8/11 amp
Service Factor:
1.25
Total HP:
1.88 HP
Frame:
56J
Stock #:
USN1152 or SP1610Z1MNSC
Dimension Letter:
C
Dimensions:
13.35 in.
Commonly Used On:
Hayward Northstar Pump
Flange:
Round
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?     Asked on 9/30/2017 by Paul

I have this pump motor on my hayward northstar pump. The motor is controlled by an Aqualogic system. Do you know if this motor can be converted to dual or multi-speed, and if so would that be a complicated change for my aqua logic? I was also thinking the dual speed controls might be independent of the Aqualogic controls. Thanks for your help.

A     Answered on 10/2/2017 by InyoPools Product Specialist Lennox H.

Hi, Paul. You can convert your single speed pump to a dual speed pump using the SPX1610Z2MNS motor. The SPX1610Z2MNS motor will have to be controlled by the AquaLogic controller. 

?     Asked on 9/1/2017 by Tim

I have a A.O. Smith Part # 7 - 187630 - 02 Serial # CB06-16. It simply stopped running, now will power on but hums loudly. It is a good 10 years old so thinking replacing the pump would be best. What is the direct replacement for it please? Thank you, Tim

A     Answered on 9/5/2017 by InyoPools Product Specialist Lennox H.

Hi, Tim. This USN1152 motor is the direct replacement for Part # 7 - 187630 - 02. 

?     Asked on 8/12/2017 by Larry

We need to replace our pool pump. Here is the info off the motor plate A.O smith Century Centurion 1081 Pool Pump SP161021BNSC Part # 7-193221-02 Do you have a direct replacement?

A     Answered on 8/15/2017 by InyoPools Product Specialist Lennox H.

Hi, Larry. Yes, this Century USN1152 Motor is the direct replacement to Part # 7-193221-02. 

?     Asked on 6/29/2016 by Gaye

What is the difference in a 1 speed vs 2 speed motor? I have a Hayward Northstar

A     Answered on 6/29/2016 by InyoPools Product Specialist Alan M.

A single speed motor runs a constant speed all the time. A dual speed or two speed motor has a high and low speed. The option allows you enjoy energy savings when running the motor on the lower speed setting.

?     Asked on 3/1/2016 by Rudi

I need a new motor, and motor id number almost fits. Hope you can help. tag on my burnt up motor reads: A.O.Smith SP1610-Z-1-MXBK Thank you

A     Answered on 3/3/2016 by InyoPools Product Specialist Megan C.

Hello, Rudi. The part# A.O.Smith SP1610-Z-1-MXBK references to the USN1152 A.O. Smith 1 1/2 HP Up Rated Northstar Replacement Motor. The Shaft-Seal will need to be replaced too. Keep in mind Hayward manufactured two North-Star pumps. You will need to verify the which model you have to correctly identify the Shaft-Seal needed. The easiest way to identify your pump model is by examining the Strainer Cover (Pump Lid) for a molded part number. Hold the Strainer Cover up towards sunlight or artificial light to view the part number. Click here to view Hayward Northstar 1998 to 2007. Click here to view Hayward Northstar Pump, 2008 to Current.

?     Asked on 11/2/2015 by Marty Moran

My terminal end bell for the USN1152 is worn out. Is there a replacement end bell available for this motor? Thanks!

A     Answered on 11/3/2015 by InyoPools Product Specialist Joe S.

Hello Marty the part need will be AOS18906802

?     Asked on 3/8/2015 by Chris

I have a Century Centurion produced usn1152 pool pump motor, but I need to replace the bearings. For some reason I can't find the bearing sizes. Any help?

A     Answered on 3/9/2015 by InyoPools Product Specialist Robert M.

Hello Chris - The USN1152 requires one 203 bearing and one 304 bearing.

?     Asked on 1/19/2012 by 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 1/18/2012 by 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 1/12/2012 by 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 1/12/2012 by 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 1/11/2012 by 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.

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