Moroso Racing Radiator Cap - 34-38 PSI

Marsoni

M251S

$21.99

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

Moroso Racing Radiator Cap - 34-38 PSISKU: 63333 UPC: 084663633331 Moroso Racing Radiator Cap, 34 38 PSI The Moroso Racing Radiator Cap, designed for high pressure performance in demanding racing environments. Crafted with precision in the USA since 1968, this radiator cap delivers reliable pressure control and durability for circle track and road race applications. Engineered to fit standard size radiator filler necks, it ensures a secure seal and consistent performance under extreme

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Reviewed in the United States on April 24, 2026

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Lee C.

Natrona Heights, US

★★★★★ 5

The Best!!

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Reviewed in the United States on May 16, 2024

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Carnegie, US

★★★★★ 5

Top-Quality Oil — Engine Runs Smoother

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Reviewed in the United States on December 1, 2025