Impeller for Pentair Challenger 1-1/2HP Full and 2HP Uprated CHII Series Pool Pump - 35-5315 - 355315



Part # 5002-05C

By Pentair Pool Products

  4.8 Average  



Part # 5002-05C

Manufacturer Code 355315

Dimensions 5.02" X 0.47"

Alternate Part #'s 35-110-1618, 35-5315, 355315, 40393, 788379658748, PAC-101-3128, PAC1013128, PEN355315

Product Description

IMPELLER, 35-5315 PAC FAB (355315)

Frequently Bought with this Impeller

Shaft Seal 5250-104

Shaft Seal Lubricant 

Product Specifications

1.5 Full & 2.0 Uprate HP
Pump Model:
Challenger CHII-N1

?     Asked on 4/1/2022by Terrie Goodloe

I am trying to replace the impeller on my Pentair Challenger High Performance Pump/CHII N 1.5A pump that has motor #196250 will this impeller work?


A  Answered on 4/1/2022 by InyoPools Product Specialist Craig C.

Hello Terrie.  The motor number provided, 196250, cross-references to a 1 1/2 HP Up Rate Motor, total horsepower 1.65.  The Pentair Pool Products Impeller 1.5 THP, 355369 would be the correct impeller.  Impeller 1.5 THP - 355369  The impeller 355315 is mated with motors 1.5 HP Full Rate, total horsepower 2.25.  When replacing the impeller, it is recommended that the motor shaft seal, seal plate gasket, and diffuser be replaced concurrent with the new motor.  The GOKIT5 contains the parts necessary to complete this project.  GOKIT5    Attached please find a Challenger CHII Series exploded parts diagram for reference.  Pentair Challenger Pump

?     Asked on 8/6/2021by Michael

I need a replacement impeller for a 30 year old Challenger 1.5 hp. The larger side that goes into the diffuser is the right size. What I’m replacing was threaded onto the pump shaft. What size is the threaded side of the impeller? This is nominally 1/2”


A  Answered on 8/6/2021 by InyoPools Product Specialist Craig C.

Hello Michael.  The thread size on the Pentair Challenger Impeller Series is 1/2".  The diameter of the material surrounding the threads varies according to the Impeller HP reference and Challenger model.  Attached, please find an exploded parts diagram for the Pentair Challenger CHII and CFII Series.  Please note Key 5, impellers.  Select the appropriate impeller, the dimensions are detailed, press "SIZE" icon.    Pentair / Pac Fab Challenger CHII / CFII Series

?     Asked on 5/26/2020by Jose G Zuazua

Hi, I have Pentair Challenger pump with a Century 2.0 HP Square Flange 56Y Up Rate Motor - B855 that I ordered from you. What is the correct diffuser and impeller for this? Thank you.

A  Answered on 5/27/2020 by InyoPools Product Specialist Hector F.

This will depend on the model name or number of the front pump housing wet end that the motor attaches to. 

  • Commented on 5/27/2020 by Product Owner

    It’s a Pentair 355468 front housing. Thanks

    • Commented on 5/29/2020 by InyoPools Product Specialist Patrick P.

      Hi Jose, is there a model number that starts with CFII or CHII if so then could you please supply that to us? This is the info. needed to make the appropriate suggestion. Just click the reply link below to supply this info.

?     Asked on 7/21/2019by bruce m Ferrell

I have a pentair challenger pump with an ao smith model B2984T motor. Which diffuser and impeller should I be using

A  Answered on 7/21/2019 by InyoPools Product Specialist Lennox H.

Hi, Bruce. You will need P/N 355604 based on your motor and the Diffuser you purchased in 2016. 

  • Commented on 7/21/2019 by Product Owner

    Thanks for your reply.

?     Asked on 5/21/2019by Steve R. Kubacki----S & H Electric, LLC

I have a 2 HP Challenger Pac. Fab commercial pump for city swimming pool. It has a high head impeller - #35-5431 I have had a problem finding this impeller before. That company sent me a #35-5604 which did not work...can you help me?? Thank you, Steve - S & H Electric

A  Answered on 5/26/2019 by InyoPools Product Specialist Lennox H.

Hi, Steve, Impeller # 35-5431 is obsolete and will have to be replaced with the Diffuser - 35-5545 & Impeller - 35-5604

?     Asked on 5/17/2019by Bobby

I have a 35-5315 Impeller with a 2HP motor and it has a SF of 1.10. Will this impeller do the same job as the 35-5604 or has someone possibly down sized the pump?

A  Answered on 6/30/2019 by InyoPools Product Specialist Megan C.

You have the correct impeller for the total horsepower of the motor.  This guide will assist with impeller sizing

?     Asked on 4/24/2017by Jim

Hi, is this a left hand thread in the brass insert that threads on the shaft?

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

The impeller will screw on clockwise and comes off counter clockwise.

?     Asked on 5/2/2015by john

Can this impeller replace the 35-5369?

A  Answered on 5/2/2015 by InyoPools Product Specialist Lennox H.

John, P/N 35-5369 is for a Pac Fab Challenger 1HP Full Rated/1.5HP Up Rated and P/N 35-5315 is for a Pac Fab Challenger 1.5HP Full Rated/2HP Up Rated. So you want to change impeller you may also need to change your motor also.


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