Part # B981
Warranty 1 Year
Manufacturer Code B2981
NOTE THIS MOTOR (B981) IS SHIPPED LESS HI-LO SWITCH. YOU MAY PURCHASE THE HI-LO SWITCH SEPARATELY BY ORDERING PART # 2512558-001.
Century Centurion replacement motor for Pentair WhisperFlo, full rated, dual speed pumps. Specifications: HP = 3/4, RPM = 3600/1800, Voltage = 115, Amps = 12.4/2.2 amp, Service Factor = 1.67, Frame = 56Y, Shaft = Threaded.
Note: NOT California or New York Title 20 Compliant.
California and New York Title 20 Compliant Option:
Variable Speed - EVQ130
What is Service Factor?
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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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Why do I need to purchase a new shaft seal?
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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.
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Why should I purchase a Tune Up Kit?
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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.
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Can you direct me to the proper hi low switch for this motor?
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Unfortunately the manufacturer does not offer the switch for the 2 speed 220v motors any longer. If you already have a 220 volt timer (on/off) you would need an Intermatic T106R to switch from high to low speed. If you do not have a timer currently you would need the T10604R which is a 220v on/off timer and a high/low timer.
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How can I tell whether or not my motor is a dual or single speed?
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Most dual speed motors will have a toggle switch that will allow you to adjust the motor speed to either high or low. Another way to tell if your motor is dual speed is by looking at the RPM's on the motor specifications label. If there are two RPM's listed such as: 1725/3450 then motor is dual speed. If there is only one RPM, then motor is single speed.
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Less than 1 hr
Screwdriver, Socket Set, Wrench Set
1 0
Replacement was extremely easy.
Hardest part was getting an electrician scheduled to wire it up.
Old motor comes off with by removing a handfull of 14mm bolts.
Note- when removing the impeller from the motor there is a REVERSE THREAD screw. Remove this screw carefully!
Whole job takes basic tools and know how. Youtube tutorials available.
The Most Recent Reviews
(5 out of 5 stars) Check Voltage
Reviewed By: Inyo Customer ()
Unfortunately the pump did not work for our system (wrong voltage). Was delivered quickly and customer service was great during the exchange process.
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(5 out of 5 stars) Great Motor!
Reviewed By: Buckingham1 from Longwood, FL ()
Pros: Exact Match
Cons: none
An exact replacement for my existing motor... included instructions were very precise... this motor is very easy to install
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