Polaris PB4-60 Backplate O-Ring, New Style In stock$2485
Quick overview
- Genuine Polaris The factory o-ring, part R0536600.
- New style The new style ring, listed for PB4-60 pumps after serial number PB120111001.
- Check the serial plate Pumps built before that serial number take the earlier ring, so read the plate before ordering.
- Seals the backplate joint A ring that has flattened, hardened or split shows up as a drip or an air leak at the wet end.
- Also listed as the housing o-ring Polaris describes this same part as the booster pump housing o-ring in some of its listings.
- Do it with the seal job Cheap enough to replace any time the PB4-60 is opened for the shaft seal or the impeller.
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Product details
Polaris R0536600 is the new style backplate o-ring for the PB4-60 booster pump. Polaris lists it for pumps built after serial number PB120111001, and also catalogs it as the booster pump housing o-ring, new style.
Serial number first
Polaris changed this ring partway through production. The number on the serial plate decides which one your pump takes, so check it before ordering rather than going by the look of the old ring, which will have deformed in service.
What a worn ring looks like
Rings flatten, harden and split with heat and time. The symptom is a drip at the joint, or an air leak that makes the pump noisy and unreliable. Neither improves with tightening.
The right time to change it
It costs very little and it is already exposed whenever the wet end is open, so replace it as a matter of course during a shaft seal or impeller job rather than putting an aged ring back in.
| Brand | Polaris |
|---|---|
| Manufacturer part number | R0536600 |
| UPC | 052337058483 |
| Type | Backplate o-ring |
| Style | New style |
| Also listed as | Booster pump housing o-ring, new style |
| Fits | Polaris PB4-60 booster pumps after serial number PB120111001 |
| Shipping weight | 0.1 lb |
| Ships | Parcel |
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