New chrome valve cover push-in breather for your valve covers. Show chrome plating. 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-37C

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