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Type B Polypak® Rod/Piston U-Seal 4.000" x 4.500" x 0.375" - AU/NBR

Marsoni M251S
Sale price$50.75
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Type B Polypak® Rod/Piston U-Seal 4.000" x 4.500" x 0.375" - AU/NBRProduct Details : Type B Polypak Rod Piston U Seal 4. 000" x 4. 500" x 0. 375" AU NBR Part No: 25004000 375B 4615 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: 4. 000" x 4. 500" x 0. 375"
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4.5 ★★★★★
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Verified Purchase
M. Chulick
Bozeman, US
★★★★★ 4
Delivered quickly
Size: 16 Fl Oz (Pack of 1), Style: Individual
Just trying to keep my small engines running with this awful California fuel
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
S
Verified Purchase
Shopper scott
Houston, US
★★★★★ 5
Good buy
Fit great. I have a toro 7.25 Brigs & Stratton 21 icnh rececyler. Mower started up great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
R
Verified Purchase
Robert Edwards
Birmingham, US
★★★★★ 5
Good Product
Works great
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Reviewed in the United States on April 26, 2026
M
Verified Purchase
MARC FOSTER
Alexandria, US
★★★★★ 5
Worked perfectly
Excellent product
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Reviewed in the United States on April 26, 2026
K
Verified Purchase
KT
Waukegan, US
★★★★★ 4
Check the gap!
Plugs work great. I will say for those reviews saying they got a dud. CHECK THE GAP!!! Both plugs were not at 0.030 as advertised. I gapped the plug and it worked perfectly.
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Reviewed in the United States on April 7, 2026

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