Part # B748
Warranty 1 Year
Manufacturer Code B2748
Dimensions 13.5" L x 7" W x 9" D
Alternate Part #'s 0-168786-07, 0-193995-07, 0-196263-20, 10-168786-07, 10-184214-02, 10-186016-02, 10855, 1103075402, 135108, 164655, 164959, 168786, 184214, 186016, 186237, 190024, 193988, 193995, 355026S, 355027S, 355702, 5KCR48UN2494X, 6K495, 7-168786-07, 7-184214-02, 7-184214-82, 7-186016-20, 7-186237-01, 7-196263-20, 75236, 8-168786-05, 8-168786-07, 8-168786-40, 8-184214-02, 8-186016-02, 8-186237-01, A100GH, A100GHL, B2748, C1308, EB748, k63cxepp-4761, P715, SQ120, V10855, CRMB2748
Century Centurion replacement motor forPentair WhisperFlo and Challenger full rated pumps. Specifications: HP = 2, RPM = 3450, Voltage = 230, Amps = 11.5, Service Factor = 1.30, Frame = 56Y, Shaft = Threaded. *Please Note: This is the correct replacement motor for the Challenger 2 HP full-rated pump.
Note: NOT California Title 20 Compliant.
Compliant Options: Variable Speed 270 - NPTQ270
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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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?
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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.
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I just finished replacing the shaft seal on my booster pump. As soon as I turned the pump on water was leaking from the shaft seal. Is it defective or am I doing something wrong?
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Depending on the model, the installation of a booster pump shaft seal can be slightly different than a pool pump shaft seal. Some booster pump and pool pump shaft seals require that a silicone sealant be used on the outer areas of the metal seat of the shaft seal. The seal will need to be lightly hammered into the body of the pump. You can use a 1 inch PVC coupling or a piece of 1 1/4 inch PVC pipe and a rubber mallet. This procedure will apply to any pool pump or booster pump using a >PS-1000 style shaft seal.
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1 to 2 hrs
Screwdriver, Pliers, Socket Set, Wrench Set, Adjustable Wrench
Less than 1 hr
Screwdriver, Nut Drivers, Socket Set, Wrench Set, Adjustable Wrench
Shut power and water off rake clover off back unplug wires, take out the (8) 14 mm bolts pull pump out, remove screw in center bolt turns clockwise Remove two Phillip screw unscrew the propeller replace seal bearing install new pump in reverse order
1 to 2 hrs
Screwdriver, Socket Set, Wrench Set
1 0
All electric was shut off at the panel to the pool system. The original pump was easily removed after taking out the bolts around the connection and removing the wiring from the pump. The wires were already marked for reinstallation.
The connection point to the pump was cleaned and new seals were installed between pump housing and pump.
The new pump was slid into place, bolts reattached, and electrical wiring replaced at terminals.
The electric was returned to the pump. The jandy system was turned on and placed in pool mode.
The pump turned on and was faster to prime than the old pump, and is very quiet.
Less than 1 hr
Screwdriver, Socket Set, Wrench Set, Adjustable Wrench
1 0
1. Ensured power to the pump was turned off.
2. On the back of the motor, I removed the cover with a flat blade screwdriver.
3. Took a picture of the wires and removed by loosening screws.
4. Loosened clamp holding the motor assembly to the pump.
5. Put motor on the bench and shaft cap from the center of the back of the motor to expose the end of the shaft.
6. Removed the 3 screws from the diffuser and the mounting plate.
7. Removed the impeller screw (reverse threaded) with a screwdriver while holding the end of the shaft immobile
8. Removed the impeller by unscrewing it while holding the end of the shaft immobile
9. Remove seal plate with four bolts. The spring part of the shaft seal will come off.
10. Gently tap out the ceramic part of the shaft seal from the seal plate.
11. Inspect the shaft seal (2 pieces), seal plate, impeller, mounting plate, diffuser and all screws and bolts for damage and replace where needed.
12. Perform steps 10 through 1 in reverse order to reassemble and reinstall motor assembly.
13. Turn on power to the pump and listen to it purr!
1 to 2 hrs
Screwdriver, Pliers, Socket Set, Wrench Set, Adjustable Wrench
Inyopools help me find the right motor to replace a spa jet motor that was not working. I watched their video on replacing pump motors, and I followed it step by step. My spa jets are now working great thanks the detailed instructions.
1 to 2 hrs
Screwdriver, Socket Set
I called Inyo Pools and they said to send a few designated pictures of the motor. I did and after only a few hours, they called and emailed me stating this was a warranted items and a new motor would be shipped to me. As promised the motor was shipped and arrived within the week. I have always had a good experience with them from sales to technical support to warranties.
The Most Helpful Review
1 0
(5 out of 5 stars) powerful motor
Reviewed By: Celtic Pride from Sacramento,CA ()
Pros: Easy to install
To date the motor has been working extremely well. Powerful and pretty quiet.
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The Most Recent Reviews
(4 out of 5 stars) Great price for great motor
Reviewed By: Inyo Customer ()
Its a little louder than expected but still great
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(4 out of 5 stars)
Reviewed By: Inyo Customer ()
didn't last nearly as long as i expected only 2 years. could have been an external event but still disappointing
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(4 out of 5 stars) Good for what I needed
Reviewed By: Inyo Customer ()
It was a perfect fit and replacement for my Pentair Whisperflo 28 that operated my pool floor cleaning system. It is single speed and the energy savings are not there but I knew that when I bought it. Fast turnaround on the shipping.
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(5 out of 5 stars) good specs
Reviewed By: Inyo Customer ()
get specs to chose the right motor
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(5 out of 5 stars) Very nice motor. Quiet and easy to install.
Reviewed By: Inyo Customer ()
Very nice unit. Quiet and very easy to install. Hundreds cheaper than the OEM units we were looking at. Very happy with this new motor.
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(5 out of 5 stars) Best Price
Reviewed By: Inyo Customer ()
Was the best price will order again if needed
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(5 out of 5 stars)
Reviewed By: Inyo Customer ()
Fast delivery and did the job :-)
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