SPX4000T O-Ring for Hayward NorthStar Pump Seal Plate | O-239 Replacement

SPX4000T O-Ring for Hayward NorthStar Pump Seal Plate | O-239 Replacement

Marsoni

M251S

$12.99

Get it in 3 business days with 1 day shipping. Friday, May 29

SPX4000T O-Ring for Hayward NorthStar Pump Seal Plate | O-239 ReplacementThe Aladdin O 239 is an aftermarket replacement for the Hayward SPX4000T seal plate O ring, purpose built for the Hayward NorthStar SP4000 series pump line covering models SP4005(NS) through SP4030(NS). Seated between the motor assembly and the seal plate, this O ring creates the critical moisture barrier that keeps your pump cavity sealed under pressure. With an inside diameter of 9 1 2 inches, it matches factory dimensions precisely, delivering a

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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I bought this sturdier Oil Filter Wrench when I was having trouble removing the oil filter on my 2003 BMW 1150RT with a stamped steel oil filter wrench that I had previously used. It still slipped, but adding a strip of grit mesh between the filter and the filter wrench saved the day. I still like this cast aluminum filter wrench better than the stamped steel one.

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Reviewed in the United States on May 22, 2026