Polaris P55 OEM motor shaft seal for the PB4-60 booster pumpPolaris Booster Pump OEM Shaft Seal In stock$3399
Polaris P55 OEM motor shaft seal for the PB4-60 booster pump
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Polaris Booster Pump OEM Shaft Seal

Ask a questionMPN P55
$3399
In stock
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Quick overview

  • Genuine Polaris The OEM shaft seal, Polaris part P55.
  • PB4-60 booster pump Made for the Polaris PB4-60, the booster that drives the pressure side cleaners.
  • Motor shaft seal Seals where the motor shaft passes into the wet end of the pump.
  • The leak fix A booster pump dripping between the motor and the volute is almost always a failed shaft seal.
  • Small part, big job An inexpensive seal that saves a motor from being ruined by water tracking down the shaft.
  • Generic option exists A generic PS1000 style seal also fits this pump, sold separately, for anyone not set on OEM.
Full description and specifications ↓

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Product details

This is the Polaris P55, the OEM motor shaft seal for the PB4-60 booster pump. The PB4-60 is the pump that supplies pressure to a Polaris pressure side cleaner, and this seal is what keeps water on the wet side of it.

The failure it fixes

The shaft seal sits where the motor shaft passes into the volute. When it wears, water finds its way along the shaft and shows up as a drip between the motor and the pump body. That is not just a nuisance leak. Water tracking down the shaft ends up in the motor bearings, and a seal left too long is how a cheap repair becomes a motor replacement.

Doing the job

Have what you need before you open the pump. The o-rings are worth inspecting while it is apart, and a silicone lubricant makes reassembly cleaner. If you are not committed to the factory part, a generic PS1000 style seal also fits this pump and is sold separately.

From Pool School

How to Prime a Pool PumpFrom the breaker to a full pot, each manufacturer's time limit, and what to check when it won't catch prime. Read Replace the Pool Pump Motor or the Whole Pump?The manufacturers' tests first, what each repair replaces, and the federal motor rule. Read
Specifications
Brand Polaris
Manufacturer part number P55
UPC 738919002258
Type Motor shaft seal
Part type Pool pump part
Fits Polaris PB4-60 booster pump
Shipping weight 0.1 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Which pump is this for?
The Polaris PB4-60 booster pump, the unit that supplies pressure to a Polaris pressure side cleaner. Polaris part number P55.
Is there a cheaper alternative?
Yes. A generic PS1000 style shaft seal will also fit this pump. This listing is the genuine Polaris OEM seal.
How do I know the seal has failed?
Water dripping from between the motor and the pump body is the classic sign. Left alone it runs down the shaft into the motor bearings and takes the motor with it.
Should I replace anything else at the same time?
It is worth checking the o-rings while the pump is open, and having some silicone lubricant on hand for reassembly. A seal replacement is far easier when everything you need is on the bench first.
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