A.O. Smith Round Flange 3/4 HP Full Rate Motor - ST1072

$167.99

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Part # ST1072

By A. O. Smith

  4.88 Average  

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Part # ST1072

Dimensions 12.5" L x 6" W x 6" D

Alternate Part #'s 11028, 15443, 15925, 164564, 165111, 177024, 177842, 19135, 1K046, 317P809, 5KC33MN2514X, 5KCR39PN2906AX, 5KCR39PN2906X, 82305, 91723, B127, B137, B626, B638, B988, C1099, C1437, C488, C48J2N118, C48J2N122A1, C48J2N131HH, C48K2DA144, C48K2DB141A1, C48K2N102, C48K2N104, C48K2N106, C48K2N113, C48K2N117A1, C48K2N117A3, C48K2N117A7, C48K2N117A8, C48K2N119, C48K2N120, C48K2N122, C48K2N122A2, C48K2N124, C48K2N126, C48K2N142, C48K2N142A3, C48K2N142A4, C48K2N143B1, C48K2N143B3, C48K2N143B4, C48K2N143C2, CT107C, EB127, JD75FL1, M543, S88-171, SP1605Z1MP, SPX1605Z1M, ST1072, SW2558, V15443

Product Description

Voltage 115/230, Max Amps 115V = 15.0 230V = 7.5, Single Speed, Round Flange, RPM = 3450, Threaded Shaft, Frame = 56J Used on the following FULL RATE ENERGY EFFICIENT models: Hayward Super II Energy Efficient, Hayward Northstar Full Rate and Jacuzzi Magnum Full Rate pumps.

Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

Motor Name:
0.75 HP ST1072 Replacement Pool Motor
HP:
0.75 HP
Speed:
Single
RPM:
3450 RPM
Volts:
115/230 V
Amps:
15.0/7.5 amp
Service Factor:
1.5
Total HP:
1.13 HP
Frame:
56J
Stock #:
ST1072
Shaft:
Threaded
Overload Protector:
Auto
Dimension Letter:
AG
Dimensions:
11 in.
Commonly Used On:
Hayward Max Flow, Hayward Super Pump, Hayward Super II, Hayward Northstar and Jacuzzi Magnum
Flange:
Round
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?     Asked on 4/24/2017 by correct booster pump

I'm looking for the proper replacement booster pump for a Hayward Model 5060 series 8d07. The current motor has a SF of 1.85 and a HP of 3/4, totalling 1.3875 HP. According to your own info replacement motor HP should be equal to or greater then the original. But the motor you list as the replacement In another Q/A for the 5060, is the SPX2707Z1M with a square Flange. Also you list the ST1072 which has a round flange. Neither meet the HP requirment as my current motor. So which is it?

A     Answered on 4/25/2017 by InyoPools Product Specialist Scott W.

Hayward has part number SPX2707Z1M for the replacement motor for that booster pump, but you could also use part number SQ1072 for that booster pump. Also, that booster pump requires a square flange motor not a round flange motor. The shaft seal you will need for your motor install is part number 3260-105.

?     Asked on 4/24/2017 by capacitor

Does this motor have a starter capacitor under the motor housing? If "yes" what is the replacement part.

A     Answered on 4/25/2017 by InyoPools Product Specialist Patrick P.

Yes this motor does have a start capacitor which is located underneath the motor cover on the back of the motor. The capacitor # for this motor is a 610807-002 Start Capacitor We also have a Video on How to Replace a Pool Motor Start Capacitor which you may find helpful.

?     Asked on 8/31/2016 by Joe Cook

What is the difference between an UP rate motor and a Full rate motor?

A     Answered on 8/31/2016 by InyoPools Product Specialist Stacey M.

Hello Joe, there is a "how to" on Up rated and Full rated.

?     Asked on 6/30/2016 by Mike

I have a Hydramax 2 pump and the motor part # SP1607Z1BEP 3/4 HP Motor Frame is N56J 3450RPM. Is this motor compatible?

A     Answered on 6/30/2016 by InyoPools Product Specialist Megan C.

Hello, Mike. The PART#BN24 3/4 HP 115V Thru Bolt Motor and the PART#BN36 3/4 HP 2 Speed 115V Thru Bolt Motor are the options for replacement motors. The Hydramax Shaft Seal Assembly will also require replacement anytime you replace your motor. The part numbers available for those are PART#5111-03 (Generic) and the PART#5111-03C (OEM). You may click here to view the schematic, for all parts available to order for the pump.

?     Asked on 6/1/2016 by

I'm looking for a inground pool Hayward booster pump model C48K2N143B4, SER NO.8E06, Model 5060, is this pump? Thanks

A     Answered on 6/1/2016 by InyoPools Product Specialist Lennox H.

Hi, The SPX2707Z1M motor is the correct replacement for the Hayward 5060 pump.

?     Asked on 4/21/2016 by Robert Wilson

Hi, The replacement for my current motor is listed as UST1072. It seems the only difference from the ST1072 is the service factor. Can I use an ST1072 instead of a UST1072 or is the service factor a game breaker?

A     Answered on 4/22/2016 by InyoPools Product Specialist Hector F.

The ST1072 is a stronger motor so you may need to change the impeller if it was originally set up for the UST1072. Also the filter may not be able to handle the extra water pressure.

?     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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