Tune Up Kit Pentair Challenger Pump (CH Series) - GOKIT5



Part # GOKIT5

By Aladdin

  4.64 Average  



Part # GOKIT5

Alternate Part #'s 65005, APCK1046, GO KIT 5

Product Description

Standard tune up kit for the Pentair Challenger pump includes the shaft seal and all o-rings, gaskets and lubricant.

We highly recommend replacing the shaft seal, o-rings and gaskets when replacing your motor.  If you use your old shaft seal, it will not mate up properly with the new motor and may leak.

This Tune Up Kit Works on These Pumps:

  • Pentair & Pac-Fab Challenger CH series Pumps  1/2 HP - 3 HP single and dual speed models.

Tune Up Kit Includes:

  • Motor Shaft Seal
  • Pump Lid O-Ring
  • Housing Gasket (round gasket, if square gasket is needed you must order it separately)
  • Diffuser Gasket (round gasket, if square gasket is needed you must order it separately)
  • Lubricant

For more Pool Pump Motors


?     Asked on 6/23/2017 by robert burke

how do I replace seal on 2hp pump, I have got the impeller off

A     Answered on 6/24/2017 by InyoPools Product Specialist Lennox H.

Hi, Robert. You can use our How To Replace a Pool Motor Shaft Seal or How To Use a Tune up / GO-KIT guides for instructions. 

?     Asked on 5/14/2017 by George

Want to buy a go-kit for B855 motor (replacing Pentair Challenger High Performance motor CHII-N1-2A 346201 Uprated) It seems to be the Pentair Pac Fab Challenger GO-KIT-5. But below is the complain on GO-KIT5 "... not for Challenger!, The outer cover seal in this kit is NOT a replacement for a Pentair Challenger! The gasket provided is a ROUND cross section and the Challenger requires a SQUARE cross section...." Therefore I need your confirmation on whether this kit is viable.

A     Answered on 5/15/2017 by InyoPools Product Specialist Lennox H.

Hi, George. This tune up kit GOKIT5 is for the Challenger "CH" Series pump which is what you have.

?     Asked on 5/11/2017 by

I just replaced my pool pump motor with 3/4 HP Standard Motor - Full Rate (B847, B2847) I need to order a diffuser O ring do I order for High head or Medium Head?

A     Answered on 5/11/2017 by InyoPools Product Specialist Lennox H.

Hi. That would be based on the pump model that you have. If you can provide me with the diffuser p/n I can tell you which one you need.

?     Asked on 5/10/2017 by kevin

Will this kit work for CFII N1 2A/343240 Pentair 2 H.P. motor? and the pump housing gasket is round but flat edged with a bevel in the center

A     Answered on 5/10/2017 by InyoPools Product Specialist Lennox H.

Hi, Kevin. This kit is not compatible with the CFII N1 2A/343240 model pump. The CF Series pump requires the square gasket Diffuser Gasket - 355030 and Housing Gasket - 355329.

?     Asked on 4/26/2017 by david allen

I think i need a repair kit for: main pump impeller: Challenger Pentair 2 hp chii n2a, 1-07-f05 / 34-6201 booster: Century Centurion LA01N, Serial 1-12-G05 Main pump impeller sounds gravelly (about 4 cycles/sec - not continuous); but has good suction and pressure (I think the motor is ok). Booster pump started whining recently, continuous. Seems like this is the motor (maybe a bearing?). Would appreciate your help. Thanks, david allen 903-245-0192

A     Answered on 4/27/2017 by InyoPools Product Specialist Scott W.

I recommend opening up your Challenger to take a look at the impeller, it does not sounds like an impeller problem it sounds like the motor bearings and on your booster pump you will need to replace the motor and shaft seal which are part number 3285-81 and 5250-106. If you find the impeller is fice you will also need to replace the motor and shaft seal on your Challenger which are part numbers B855 and 354545S.

?     Asked on 4/6/2017 by


A     Answered on 4/6/2017 by InyoPools Product Specialist Scott W.

Yes, that GOKIT5 would be the correct seal kit for your Challenger.

?     Asked on 3/31/2017 by Bernie

I apologize, I wrote that I just ordered the USQ1102 (AOSUSQ1102) - A.O. Smith 1 H.P Square Flange Motor but did not state the pump. It is a Pac-Fab Challenger (CFII-N1-1A) which seal kit do I need

A     Answered on 3/31/2017 by InyoPools Product Specialist Scott W.

Yes, the GOKIT5 is the correct seal kit for your Pentair Challenger.

?     Asked on 3/31/2017 by Bernie

I have just ordered the USQ1102 (AOSUSQ1102) - A.O. Smith 1 H.P Square Flange Motor. Which seal kit do I need

A     Answered on 3/31/2017 by InyoPools Product Specialist Scott W.

If you have the Pentair Challenger then the GOKIT5 is the correct seal kit for you.

?     Asked on 2/8/2017 by

I have the PAC FAB Challenger. Do I need GoKit 5 or GoKit 73?

A     Answered on 2/9/2017 by InyoPools Product Specialist Hector F.

They GOKIT73 has the squared off diffuser gasket at the cross section and the GOKIT5 has all o rings and gaskets that are rounded at the cross section. Technically there are two Challenger kits. 

?     Asked on 1/1/2017 by Rick

What I can read is PAC-FAB 2 HP and then ABEL 35-546. On the inside, on the inside of the back plate there are numbers: 35-5303 (3 inserts) and 35-5497 (6 inserts). Question: what GO-Kit do I get? It was attached to a 2 HP motor.

A     Answered on 1/3/2017 by InyoPools Product Specialist Adam Y.

Good afternoon Rick, You are looking for a Tune Up Kit Pentair Challenger Pump - GOKIT5

?     Asked on 12/9/2016 by Craig

I have a Pentair Challenger pump and Centurion B2854. Is this the right tune-up kit? Thanks.

A     Answered on 12/9/2016 by InyoPools Product Specialist Scott W.

Yes, that is the correct tune up kit for the challenger.

?     Asked on 10/25/2016 by Douglas Veazey

I have a AO Smith UST 1152 Pool Pump Motor with a Challenger pump: Model CH11-N1-3/4A attached. The motor runs, but the pump is not working. Do you recommend the Tune Up Kit Pentair Challenger Pump - GOKIT5 or something else?

A     Answered on 10/26/2016 by InyoPools Product Specialist Lennox H.

Hi, Douglas. It depends on what is causing the pump not to pump water. Once you determine the cause we can assist you with resolving the issue. You can use our 8 Answers to “Why Is My Pool Pump Not Working?” Blog to assist you with figuring out why your pump isn't working.

?     Asked on 9/20/2016 by Dr C

I have pentair challenger pump and Centurion AO Smith B2848 motor, will above gasket work with it. Thanks

A     Answered on 9/21/2016 by InyoPools Product Specialist Scott W.

Yes, that would be the correct seal kit for your challenger.

?     Asked on 9/18/2016 by Dr C

Need tune up kit for AO smith centurion B2848 hp 1, rpm 3450

A     Answered on 9/20/2016 by InyoPools Product Specialist Stacey M.

Hello, If you look on the wet end of your pump it will give you a make and model of your pump, this particular GOKIT goes to an Pentair Challenger.

?     Asked on 8/29/2016 by Robert Burke

I have a 2hp PAC -FAB pump is 20 yrs.old , I replaced thr motor 3 yrs. ago put new impellar in this year can not find any leaks all lines are clear . It will not pull water from skimmer that is fartherish from pump can not get good volumn at discharge . Strainer will not completely fill get air in filter .

A     Answered on 8/31/2016 by InyoPools Product Specialist Scott W.

It might be the wrong impeller that you have. They have a medium head and high head impeller. If you happened to purchase the wrong impeller to match up with your diffuser and motor than that would be the problem with why it's not pulling the water.

?     Asked on 8/25/2016 by robert burke

I have a 2hp pac fab pump, I can not get the bubbles out of the strainer so the filter gets air in it , I can not get a good suction and do not have very good volume of water . I replaced impeller and defuser but not much help new motor .Pump is 20 years old.

A     Answered on 8/30/2016 by InyoPools Product Specialist Scott W.

I apologize for the delayed response. You have an air leak somewhere whether it's the seals in the pump that are bad or a leak in the plumbing.

?     Asked on 6/16/2016 by jamice williams

I have a new sand filter, 15,000 gallon pool and 2 hp motor. It makes a noise gets louder at times and if I place my foot on it slightly right behind the basket area it seems to quieten down, the I remove my foot & it gets loud again. does it need replacing ?????I believe its over 3 years..old

A     Answered on 6/18/2016 by InyoPools Product Specialist Lennox H.

Hi, The bearings are going bad in the motor, you can either replace the bearings or the entire motor.

?     Asked on 6/12/2016 by Renee

Hi. I have a Pentair-Model # CHII-N1-1A/346204. It was making a really loud noise, so I replaced the bearings. It is really quiet now, but now it is leaking a lot of water. What seals would I need to replace. The large seal is square. Thank you for your help. Renee

A     Answered on 6/12/2016 by InyoPools Product Specialist Patrick P.

Hi Renee, We would suggest this tune up kit and replace all the gaskets and o-rings that are included in this kit. It is most like the spring loaded shaft seal that is causing the problem.

?     Asked on 6/5/2016 by

I have a Challenger Pac/Fab 1.5 hp model CH11-N2-1.5A, serial #2-23-G86. Will this kit work on it?

A     Answered on 6/5/2016 by InyoPools Product Specialist Patrick P.

Yes, this is the correct tune up kit for your Pac-Fab Challenger 1.5 hp model CH11-N2-1.5A.

?     Asked on 6/5/2016 by Eric weber

How do identify if my challenger motor is greater than 3hp. The labels are a little bleached. My pool is small and only 6ft deep so I doubt I have a larger engine. Not sure. Thanks

A     Answered on 6/5/2016 by InyoPools Product Specialist Alan M.

Hello Eric, There is a minuscule chance that your motor on your pool, less than 40,000 gallons is 3HP or greater. There is no real way to determine the size of your motor from a label that has faded or by visually inspecting the motor. You can take dimensions of your pool, filter size, pipe size, and attached features (spa, solar panels) and factor that information into determining a motor size. We would also recommend changing the seal on your pump when changing the motor.

?     Asked on 5/5/2016 by Joseph

will this kit fit my Centurion (A.O.smith) 1 HP B853 model?

A     Answered on 5/5/2016 by InyoPools Product Specialist Hector F.

As long as you have the Challenger pump then yet this kit will work. Please keep in mind that some of the Challenger models have the housing and diffuser gaskets squared from a cross section perspective and those style gaskets are sold separately.

?     Asked on 9/16/2015 by Michael

Salt water and regular seals: what's the difference other than price? Could this be why the bearings in my existing motor failed? Is there a way to tell if the existing seals in my other motors are salt water or not? If they are not should I replace them on the working motors? Can I get a kit containing the salt water parts? Do I need to? Why isn't this more prominently advertised? I just about bought the kit and if I hadn't read the comments maybe it would have been a big mistake?

A     Answered on 9/17/2015 by InyoPools Product Specialist Andy O.

Michael, The only difference between the standard and salt water kits is that the shaft seal is made  with VITON instead of standard rubber. Viton can withstand harsh minerals better than the standard rubber seals. There is no saltwater tune up kit for the challenger yet, but we do offer the salt water shaft seal. The bearings on your motor failed more than likely because your shaft seal did at one point. These salt water seals are so new manufacturer's don't even offer them yet.

?     Asked on 7/13/2015 by chuck

is the seal included in o ring kit for salt water pools

A     Answered on 7/14/2015 by InyoPools Product Specialist Joe S.

Hello Chuck, GOKIT5  does not include a salt water shaft seal

?     Asked on 6/10/2015 by Myla

Is the right kit for the B854/B2854 pent air challenger motor? 1.5 hp, 1.1, RPM = 3450.

A     Answered on 6/10/2015 by InyoPools Product Specialist Joe S.

The GOKIT5 will work on both versions of the Challenger pump up to 3HP

?     Asked on 12/23/2014 by Martin

I have a Challenger pump but not sure about model #. What kit do I need to rebuild it?

A     Answered on 12/23/2014 by InyoPools Product Specialist Alex V.

Martin,  The GOKIT5 will work on both versions of the Challenger pump up to 3HP.

?     Asked on 10/15/2014 by Guest

My pump is not priming even after cleaning impeller. Will purchasing this kit aid in fixing that problem?

A     Answered on 10/15/2014 by InyoPools Product Specialist Patrick P.

The seal kit can help with loss of prime. I can't guarantee that it will solve your problem. The loss of prime could be from an air leak at the valves or plumbing in front of the pump.

?     Asked on 2/13/2012 by Guest

I recently changed my pool motor and gaskets. I made sure to lubricate all the gaskets with vaseline. A few days later water is leaking from the pump. What did I do wrong? Help please!!

A     Answered on 2/13/2012 by InyoPools Product Specialist Patrick P.

You never want to use vaseline on any rubber gaskets or o-rings. Vaseline is petroleum based and will deteriorate the rubber quickly. Whenever you change the motor on a pool pump it is recommended that you replace the gaskets and shaft seal as well. A >Go-kit contains the shaft seal, packet of non-petroleum based lubricant and gaskets you will need for your pump. If you already have the gaskets, you can purchase >Magic Lube.


Est. Repair Time

1 to 2 hrs

Tools Needed

Nut Drivers, Socket Set, Wrench Set

1     0

Pump motor replacement and pump tune up.

Written on 5/8/2017 by Guest

My family and I recently moved into a house that has an in ground pool that has not been used in over 20 years. All of the pool equipment (pump, filter, etc.) sits out in the open and as a result, most of the identifying marks and labels had faded to the point they were unreadable. Therefore, I contacted a customer service rep at INYOPOOLS and based on my description, the rep was able to determine the correct replacement pump motor and pump tune up kit I needed. The rep then directed me to the videos that would best demonstrate how to perform the repairs I was facing. I received the motor and tune up kit a couple of days later and completed the repairs without a problem.

Were these instructions helpful? 


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