U.S. Seal Mechanical Seal, 5/8" ID (Generic), PS-4231-OS In stock$19⁹⁹

Generic 5/8 inch inside diameter carbon and ceramic mechanical shaft seal for Jandy pumps

U.S. Seal Mechanical Seal, 5/8" ID (Generic), PS-4231-OS

Name: U.S. Seal Mechanical Seal, 5/8" ID (Generic), PS-4231-OS
Brand: US Seal
SKU: USS-OLD-4231
Price: 19.99 USD
Availability: InStock

Ask a questionMPN PS-4231-OS

$19⁹⁹

In stock

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Quick overview

Measure before you order The ceramic on this seal has a 5/8 inch inside diameter, and the wrong bore will not sit on the shaft.
For the newer Stealth shaft Revision P and higher motors have no step where the impeller mounts, and that is the shaft this seal suits.
Older revisions differ Revision N and lower used a double stepped impeller shaft and take a 13/16 inch inside diameter seal instead.
Carbon and ceramic faces The standard pairing for a pool pump shaft seal, running against each other on a film of water.
Jandy Pro Series fitment Listed for Jandy Pro Series pumps including the FHPM and the VS FloPro.
Generic replacement An aftermarket seal built to the same dimensions, not a factory branded part.

Full description and specifications ↓

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Product details

This is a generic mechanical shaft seal with a 5/8 inch inside diameter on the ceramic, in the usual carbon and ceramic pairing. It is listed for Jandy Pro Series pumps including the FHPM and the VS FloPro.

Two seals, two shafts

The Stealth impeller was originally made with a different shaft. Revision N and lower had an impeller with a double stepped shaft, and those older pumps need a shaft seal with a 13/16 inch inside diameter on the ceramic. Revision P and higher have no step where the impeller goes onto the motor shaft, and those newer pumps take the 5/8 inch inside diameter ceramic, which is this seal.

Check before you buy

The revision letter and the shaft itself are what decide this, not the pump model on the label. Pull the old seal, measure the bore of the ceramic, and match it. A 13/16 inch version of this seal is available separately for the older shaft.

Generic, not OEM

This is an aftermarket seal built to the same dimensions as the original rather than a factory branded part.

Specifications
Brand	U.S. Seal
Manufacturer part number	PS-4231-OS
Type	Mechanical shaft seal
Ceramic inside diameter	5/8"
Materials	Carbon and ceramic
Fits	Jandy Pro Series pumps including FHPM and VS FloPro
Stealth fitment	Revisions P and higher, no step where the impeller mounts
Sourcing	Generic aftermarket replacement
Shipping weight	0.5 lb
Ships	Parcel

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Questions and answers

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

How do I know whether I need the 5/8 inch or the 13/16 inch seal?

It depends on the impeller shaft. Revisions P and higher have no step where the impeller goes on and take the 5/8 inch inside diameter ceramic. Revisions N and lower have a double stepped shaft and take the 13/16 inch seal.

Is this a genuine Jandy part?

No. It is a generic replacement seal built to the same dimensions, so it is the budget alternative to the factory part.

What is it made of?

Carbon and ceramic, the standard face pairing for a pool pump shaft seal.

Which pumps does it suit?

It is listed for Jandy Pro Series pumps including the FHPM and the VS FloPro, and for Stealth pumps at revision P and higher.

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