Pentair Shaft Seal OEM 5/8" - 354545S



Part # 354545S

By Pentair Pool Products

  5 Average  



Part # 354545S

Dimensions 2.5" L x 1.75" W x 1.75" D (5/8" I.D.)

Alternate Part #'s 35-4545, 354545

Product Description

This original Pentair brand 5/8" mechanical shaft seal is used on the Pentair Superflo and the following Pentair / Pac Fab pumps:  Dynamo, Dynatron, Challenger, Pinnacle and Dynamite.  This is a type A shaft seal.


?     Asked on 8/27/2019 by

What are the correct replacement bearings for pump motor AO Smith 2HP SQ1202? Thank you.

A  Answered on 9/12/2019 by InyoPools Product Specialist Hector F.

The front bearing part number is 5270-32 and the rear end bearing is part number 5270-31

?     Asked on 8/12/2019 by jerry

how do you remove the impellor from a pentair challanger motor shaft to replace the shaft seal

A  Answered on 8/13/2019 by InyoPools Product Specialist Jessica C.

Hi, Jerry. There is a video on How To Remove Stubborn Pool Pump Impellers as well as How To Replace a Pool Motor Shaft Seal for your replacement. 

?     Asked on 6/4/2017 by

i have a dynamo high performance 1.5 hp above ground pool pump, we are needing the pump shaft gaskets . Do you have those? not sure if this is the part # for our pump but is has p/n 340210, serial # 0306207130016L.

A  Answered on 6/9/2017 by InyoPools Product Specialist Patrick P.

This would be the correct shaft seal for your Dynamo pump.

?     Asked on 4/17/2017 by Haskell Davis

my pentair pool pump 1.0 HP SF-Ni - 1a1340038 I believe i need a shaft seal. What all do I need?

A  Answered on 4/17/2017 by InyoPools Product Specialist Scott W.

I need your pump model to recommend the correct shaft seal for your pump.

?     Asked on 8/8/2016 by frank fontenot

is this suitable for salt water pools?

A  Answered on 8/16/2016 by InyoPools Product Specialist Lennox H.

Hi Frank, This shaft seal is compatible with saltwater pools.

?     Asked on 1/25/2012 by Guest

How do I change the shaft seal on my pool pump?

A  Answered on 1/25/2012 by InyoPools Product Specialist Patrick P.

Changing the shaft seal is quite simple. Here's How To Replace a Pool Motor Shaft Seal.


Est. Repair Time

Less than 1 hr

Tools Needed

Screwdriver, Pliers

Bad Motor Seal

Written on 6/27/2019 by Guest

Installing this new seal was easy on my motor. After removing the back cover of the motor and immobilizing the shaft and removing the impeller, the shaft seal simply slid off. The new one replace very easily.

Were these instructions helpful? 


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