A.O. Smith 2 HP Round Flange 56J Dual Speed Full Rate Motor - B2979

$430.99

IN STOCK
FREE SHIPPING

Part # 5389X

By Century Motors

  4 Average  

Details

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Part # 5389X

Warranty 1 Year

Manufacturer Code B2979

Alternate Part #'s 1105170400, 152687, 158227, 158568, 159819, 159820, 159945, 1620Z-2-MC, 1620Z-2-MSC, 165980, 177064, 177107, 177111, 177112, 177153, 181094, 181389, 181390, 190041, 190066, 190116, 190126, 190128, 190178, 190191, 190217, 190218, 19315, 193637, 35B1200, 5KCR48UN3017X, 7-177064-05, 8-177064-05, 8-177107-04, 817706405, A056480, B2979, B929, B940, B941, B959, B979, C1443, CT120T, EB979, F56AA72A01, K48M2N116, K48M2N116A3, K48M2N116A4, K48M2N116A5, K48M2N117, K56N2N102A1, K56N2N103, K56N2N103A6, K56N2PA109C1, MGT605118, SP-1620-Z2-MC, SP-1620-Z2-MSC, SP4015X202, STS1202, STS1202R, STS1202RV1, STS1202VRV1

Product Description

HIGH SPEED: 2.4 EFFECTIVE HORSEPOWER:MAGNETEK THREADED SHAFT, 56J FRAME, 2 SPEED CATALOG # B979 PART # 8-177064-05 ..... HORSEPOWER LABEL HORSEPOWER: 2.0-.25 SERVICE FACTOR: 1.20 LOW SPEED: .3 ..... DIMENSIONS LENGTH: 11" EXCLUDING SHAFT SHAFT LENGTH: 2 1/2" DIAMETER: 6 1/2" MOUNTING HOLES: (4) 5 7/8" CENTER TO CENTER .....CAPACITOR RUN CAPACITOR, 25 MF, 370 VOLTS *CURRENT MODEL* MOUNTING ON TOP OF MOTOR (OPT# 5270-08) ..... ELECTRICAL VOLTAGE: 230 VOLTS, SINGLE PHASE AMP DRAW : 10.6/3.2 AT 230 VOLTS. SHIPPING WEIGHT: 35 LBS

 **NOTE THIS MOTOR IS SHIPPED LESS HI-LO SWITCH. YOU MAY PURCHASE THE HI-LO SWITCH SEPARATELY BY ORDERING PART # 2512558-001.**

Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

Motor Name:
2 HP B979 Replacement Pool Motor
HP:
2/ .25 HP
Speed:
Dual
RPM:
3450/1725 RPM
Volts:
230 V
Amps:
11.0/1.6 amp
Service Factor:
1.2
Total HP:
2.4 HP
Frame:
56J
Stock #:
B979
Shaft:
Threaded
Overload Protector:
Auto
Dimension Letter:
C
Dimensions:
13.55 in.
Notes:
California Title 20 Compliant
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?     Asked on 9/23/2018 by Drew

Does this product include a shaft seal and all the accessory parts I will need to replace my pump motor? If not, can you direct me to them?
 Reply

A  Answered on 9/25/2018 by InyoPools Product Specialist Hector F.

These do not include the seals and gaskets. You can either call and provide us with the model name or number of the front pump housing that the motor bolts to, or if that information is not legible you can always email us pictures to upload@inyopools.com so we can assist you to identify it. 
 Reply


?     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?
 Reply

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.
 Reply


?     Asked on 1/12/2012 by Guest

Why should I purchase a Tune Up Kit?
 Reply

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.
 Reply


?     Asked on 1/12/2012 by Guest

Why do I need to purchase a new shaft seal?
 Reply

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.
 Reply


?     Asked on 1/11/2012 by Guest

What is Service Factor?
 Reply

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.
 Reply


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Difficulty

Est. Repair Time

1 to 2 hrs

Tools Needed

Socket Set, Wrench Set

Replaced My Defective Pump

Written on 2/21/2019 by Guest

Removed the existing pump.
Disconnected the existing wiring (took a photo of the existing wiring before removal).
Installed the new pump and seal.
Reinstalled the wiring.
Primed pump and started the pump.

Were these instructions helpful? 
 

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