Type B Polypak® Rod/Piston U-Seal 0.500" x 1.000" x 0.375" - AU/NBR

Marsoni

M251S

$18.59

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

Type B Polypak® Rod/Piston U-Seal 0.500" x 1.000" x 0.375" - AU/NBRProduct Details : Type B Polypak Rod Piston U Seal 0. 500" x 1. 000" x 0. 375" AU NBR Part No: 25000500 375B Product Category: Symmetrical Seals Product Type: Rod Piston U Seal Profile: Type B Polypak Material(s): Polyurethane Nitrile Material Code: AU NBR Temperature Range: 65F to +200F ( 54C to +93C) Pressure Range: 5000 PSI ( 345 Bar) Surface Speed: < 1. 6 ft s (0. 5 m s) System Of Measurement: Inch Dimensions: 0. 500" x 1. 000" x 0. 375" Nominal

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I used this to change the oil on my BMW M8 with the S63 engine. It was a perfect fit. It extended far enough onto the filter housing to be quite secure with no risk of slipping off and stripping the housing. It was snug on the housing and did not bind up due to having a loose fit. The tool feels well-built and I suspect it will outlive me given my occasional personal use. It would still probably hold up well even for daily shop use as long as it was not abused (repeatedly dropped, slammed around, etc).

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Reviewed in the United States on September 8, 2025

Verified Purchase

Chad altenbach

Lexington, US

★★★★★ 5

Made well and great fit

Fits perfectly and is made well

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Reviewed in the United States on May 8, 2026