Valve Cover Grommets

Moroso Valve Cover Grommets are precision-engineered sealing components designed to eliminate oil leaks around spark plug wire passages and accessory penetrations on your engine's valve covers. Whether you're running a stock rebuild, a high-performance street engine, or a weekend track car, these grommets serve as a critical barrier against crankcase oil escape. They're essential for any mechanic or enthusiast restoring or upgrading a valve cover assembly, particularly when reusing older covers or installing new ones with factory-style wire routing.

Manufactured by Moroso, a trusted name in engine sealing solutions, these valve cover grommets feature durable elastomer construction that resists oil degradation, heat cycling, and engine compartment vibration. The grommets' compression-fit design creates a tight seal around wire boots and breather fittings without requiring adhesives or special tools. Their compact dimensions (3.7 x 1.6 x 5 inches) allow easy installation in tight engine bay spaces, and the minimal 0.07 lb weight ensures zero performance impact while dramatically improving reliability and longevity of your valve cover seal integrity.

Technicians and DIY builders benefit most from stocking these grommets during complete engine gasket set replacements, vintage car restorations, or any valve cover removal and reinstallation job. The set is compatible with most American V8 and V6 engine configurations that use traditional spark plug wire routing, making it an affordable preventive investment that pays dividends by avoiding repeat gasket work. Proper grommet installation during valve cover service ensures sealed wire passages for years of leak-free operation and clean engine bays.