Part # B843
Warranty 1 Year
Manufacturer Code B2843
Century Centurion replacement motors for Pentair WhisperFlo, energy efficient, full rated pumps. Specifications: HP = 2, RPM = 3450, Voltage = 208-230, Amps = 11.0-10.0, Service Factor = 1.30, Frame = 56Y, Shaft = Threaded.
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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2 to 4 hrs
Screwdriver, Nut Drivers, Socket Set, Wrench Set
Cleaned area around the motor;
watched a few Youtube 'how to" videos;
turned off all electrical breakers to the pool;
removed all nuts/bolts to free the motor from pump basket area;
removed electrical wiring to the old pump;
removed impeller;
cleaned all surfaces;
installed impeller on new motor;
installed new gaskets;
installed motor to pump gasket area;
re-connected electric wiring;
added water to pump basket (10 minutes);
turned breakers back on;
turned on new motor and was much better;
1 to 2 hrs
Screwdriver, Pliers, Socket Set, Wrench Set, Adjustable Wrench
Ordered the Century 2 HP motor B2843 and the saltwater "Go Kit". Locked out the 220 power box. Removed the end plate off the old motor and removed the electrical wires. Un-bolted the motor & wet-in from the whisperFlo housing. Removed the diffuser ( 2 small "allen" screws). Removed the impeller screw, Used a strap-wrench from Harbor Freight to remove the impeller. Removed the flange bracket from the motor. Replaced the two bushings
(impeller & flange bracket) and re-assembled. Total job took 2 hours. INYO Pools service staff was great, their DIY videos were excellent felt like they were there beside me the entire project. Delivery of parts was on-time and the price for the entire project was less than a local pool shop wanted for just the service call to give me an estimate of repair. My savings with this DIY project was ~$1250... I Love INYO Pools....this company rocks !!!!!
4 to 8 hrs
Screwdriver, Pliers, Socket Set, Adjustable Wrench
I submitted photos of my old pump and motor to INYOPools since I couldn't determine the ratings of the old pump since the old labels were weathered and worn. INYOPools provided me with multiple choices to replace the motor.
After receiving the replacement that I ordered from INYOPools, I removed the old unit and transferred the pump head to the new motor following the detailed instructions provided. I cleaned and rebuilt the pump head using new gaskets and seals prior to attaching it to the new motor. My pump head was attached to my filtration system with screw in couplings so reattachment was easy. It took about half a day to complete.
1 to 2 hrs
Screwdriver, Nut Drivers, Socket Set, Large channel locks
2 0
Followed directions supplied with new motor and seal. The only issue I have is that they didn't say tondead head the pump. I knew to do that from 8 yrs of pool ownership, but I could see how some people might not and lose prime. That would have added more time to the job. Otherwise, followed every step within the instructions. I should have replaced the big O ring that seals the motor to the pump, but it wasn't recommended. I used some silicone lube which is like Vaseline made from silicone. Again, I didn't see that in the instructions but knew from other repairs. I bought new collars to attach the wire to the pump and wires as per directions. I would say 90 minutes start to finish. I also dug out around the motor. The old one was partially buried, which probably is the reason it failed. I would say this is a good home for a do it yourselfer as long as you are comfortable with crimping wires, etc. it is 220 after all. Also, I would order a new impeller, since they are not expensive and removing the old one required a delicate touch and two people. One to hold the implellet with large channel locks and another to secure the drive shaft with a lock wrench
1 to 2 hrs
Screwdriver, Nut Drivers, Pliers, Socket Set, Wrench Set, Adjustable Wrench
1 0
1 to 2 hrs
Screwdriver, Nut Drivers, Socket Set, Wrench Set
3 0
My family and I recently moved into a house that has a pool that has not been used in about 20 years. Of course the pool had a number of issues after sitting so long, one of which was a bad motor. Since all of the pool's equipment sits out in the open, most of the identifying marks were weather faded and unreadable. Therefore, I contacted a customer service rep at INYO who was able to provide all of the correct part numbers, based on my descriptions of the parts. The rep also recommended a couple of videos that would be the most applicable to my situation, and after viewing those, I was able to replace the pump motor and perform a tune up on the pump in about an hour. One of the most helpful things the rep told me was that the motor comes without any accompanying equipment, including a power cord. I found this very helpful because it clued me in to the fact that I also needed to order all the extra items I needed, rather than finding out when I opened the box. This saved me the trouble of having to place a second order, and then having to wait a couple of more days for those parts to come in. At any rate, I wired up the motor according to the included wiring diagram and followed the information I obtained from the videos on everything else and when I was done, the whole thing fired right up and has been running without any problems ever since.
The Most Recent Reviews
(4 out of 5 stars)
Reviewed By: Inyo Customer ()
Delivered quickly and in good condition. Motor is a great replacement for my original Pentair Motor.
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(5 out of 5 stars) Century Motor
Reviewed By: Inyo Customer ()
Motor came when they said. Easy install. Works perfectly. Best price. Will always use Inyo pools for all my pool needs. Thanks
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(5 out of 5 stars) Easy to install
Reviewed By: Inyo Customer ()
Easy to install.
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(5 out of 5 stars) Great service
Reviewed By: Inyo Customer ()
Great service, exactly what I needed and works great
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(5 out of 5 stars)
Reviewed By: Inyo Customer ()
motor delivered in 3-4 days, excellent condition, exactly as ordered, easy to install, started immediately , does not run hot.
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(5 out of 5 stars) Great Service!
Reviewed By: Inyo Customer ()
Motor arrived in three days! I needed help finding the right replacement motor and sent a picture of the motor I wanted to replace to upload@inyopools.com and received the correct motor number almost instantly. Great service! Also I will be following the "how to" video for installing the motor and seal which INYO sent to my email.
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1 0
(5 out of 5 stars) 2HP Motor B843
Reviewed By: Dorothea G. from Killeen, TX ()
Pros: very quiet
Cons: new rubber seals are separate purchase
Within 1 week I ordered 3 different motors. The B843 was the best of the 3 motors. We installed it immediately and it's very quiet and works perfectly!
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2 0
(5 out of 5 stars) Strong motor
Reviewed By: Harley Jr from San Jose, CA ()
This motor is quieter than the original and works better as well. Thanks Inyo!
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1 0
(5 out of 5 stars) Perfect motor
Reviewed By: Gerald M. from Oak Hill, VA ()
Pros: Customer Service, Howto videos
Cons: None
I am not super handy but with the customer support and the how to videos I was able to successfully replace my pump and all gaskets. I saved over $400 for what the pool company wanted to charge. More importantly, I understand how it works now and can easily do it again next time.
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1 0
(5 out of 5 stars) Great service and motor
Reviewed By: Mark in Texas from Houston, TX ()
Pros: Service, quality
Cons: none
The motor arrived as scheduled, at a great price, and has worked flawlessly. It was great to speak to a person to confirm that I was ordering the correct motor.
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1 0
(5 out of 5 stars) Perfect replacement for our old Pentair 17452-03. Everything fit perfectly.
Reviewed By: Marie V. from Needles , CA ()
Shipping was extremely fast. Customer service was great and the staff was very helpful.
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2 0
(5 out of 5 stars) Good quality motor, easy to install.
Reviewed By: KC - South Carolina from Fort Mill, SC ()
Very satisified with order process, delivery and quality. Pool motor died: Sat; Ordered online: Sun (Shipped Ground), Monday: Holiday, Shipped: Tues, Received: Thurs evening, Pool up and running: Sat a.m. Check installation help online for best results!!
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4 0
(5 out of 5 stars) Perfect Fit - Very Quiet
Reviewed By: MadSea from Jacksonville , FL ()
Pros: direct replacement - very quiet. Not sure of savings yet.
Cons: Missing Lub/oil warning on Go-Kit.
Inyo's site is great and call help the best. Replaced an dead motor with the EE model and was pleased with how quiet it ran. I did miss the "don't touch the ceramic disks" warning on-line, I had even lubed it with the supplied grease in the go-kit!!! good thing I had went on-line half way through so I could clean the disks before any run-time. There should be a note included with the Go-Kit. Shipping was Uber-quick -- 2 business days!
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0 1
(5 out of 5 stars) b843 pump
Reviewed By: Jacqueline A. from antelope, CA ()
Pros: Easy ordering and delivery time excellent
Cons: Different number on motor by one character
I have not installed the motor yet, due to the weather here. On the pump which it has the numbers B2843 - instead of just B843 not sure if this means anything or not.
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(5 out of 5 stars) Good pool motor
Reviewed By: Les K. from Santa Ana, CA ()
Got the product in timely fashion. Relatively easy to install and works well. It is quieter than the original and seems to pump more volume of water. Very happy with it.
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(5 out of 5 stars)
Reviewed By: John D. from Saint Augustine, FL ()
The WhisperFlo EE2 HP Motor works great and it is quiet, easy to install.
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(5 out of 5 stars) AO Smith High Effeciency replacement for Challenger Motor
Reviewed By: Cobra427sc from Houston, Tx ()
Pros: Easy intall, fast shipping, great price
Cons: non
The motor is excellent and is a direct replacement for the Pac-Fab Challenger 2.5 motor. Easy changeover, but the Inyo website is misleading unless you must move a bunch of plumbing, tho' it does a good job reminding you that the impeller comes off counterclockwise. I'd have liked a bit more website help on how the wires get moved from old to new, but the pump is a good price and not too difficult to replace. sdm
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2 0
(5 out of 5 stars)
Reviewed By: GREENHORNET from Arcadia, Fl. ()
Pros: quick ship, installed same day, runs great, no surprises
Cons: none
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3 0
(5 out of 5 stars) The replacement motor you want
Reviewed By: Jimbob from Raleigh, NC ()
Pros: Easy to install
Cons: none
I installed this motor on a five year old Pentair pump with failing bearings. It took me under an hour and I had never done it before. It's working great and is quieter than the pump was when it was new. You should replace the seal and use the kit they sell at INYO and you can replace some gaskets at the same time.
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44 6
(5 out of 5 stars) Pool Filter Motor
Reviewed By: DreamBigGoGreen from Bowie, Maryland ()
Pros: Customer service, shipping time, price and product
Cons: None that I can think of
Best of all is the wonderful customer service help provided by Inyopools. The product was here in the time specified and the price was considerably less than the 5 other companies I checked with first. The product was as specified and ordered and hasn't given me any problems to date. It was installed about a month ago.
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