New BLACK valve cover push-in breather for your valve covers. Black finish. Push in design, installs in seconds. This push in breather with fit both Small Block and Big Block valve covers. Replaces GM PART# 6421868

Fits Valve Covers with a 1.25" Hole and Grommet ENC-107C with a 1" Inside Diameter

PART NUMBER: ENC-37B

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