Valve Cover Grommet Set 03-21 Hemi 6.7L

The Valve Cover Grommet Set 03-21 Hemi 6.7L is an essential engine bay component designed for Dodge Ram owners running the heavy-duty 6.7-liter Cummins diesel engine. These grommets seal the interface between valve cover gaskets and spark plug holes, preventing oil seepage into the cylinder head and combustion chamber. Whether you're performing routine maintenance, replacing a worn gasket set, or building a rebuilt engine, quality grommets are non-negotiable for long-term reliability and cleanliness.

Manufactured by MAHLE ORIGINAL/CLEVITE—a trusted OEM supplier—this grommet set features precision-molded elastomer construction that resists oil degradation, thermal cycling, and compression set over extended service intervals. The grommets maintain consistent sealing pressure across temperature fluctuations typical of diesel operation, where underhood heat and engine bay vibration can compromise inferior aftermarket rubber. Each grommet is engineered to fit precisely into factory valve cover mounting points, ensuring uniform contact without gaps that would allow oil migration into the spark plug wells or ignition system.

This set is ideal for mechanics and DIY enthusiasts rebuilding 2003–2021 Hemi and Cummins powerplants, or anyone replacing aged grommets that have hardened and lost sealing integrity. Proper grommet installation during valve cover gasket service prevents oil from fouling plug wells, which can lead to ignition coil corrosion and misfires. At 0.16 lbs and compact dimensions, the complete set installs quickly and delivers factory-level durability without the guesswork of generic replacements. Trust MAHLE's engineering for a dry, professional engine bay rebuild.