Int Manifold Gasket Set 05-14 Chevy 5.3L 6.0L

The Int Manifold Gasket Set 05-14 Chevy 5.3L 6.0L is an essential OEM-quality replacement for the upper plenum gasket on GM LS-series engines. Built by MAHLE ORIGINAL/CLEVITE, a trusted leader in engine sealing solutions, this gasket set addresses one of the most common failure points in fifth and sixth generation Chevrolet trucks and performance vehicles. When the factory gasket deteriorates, vacuum leaks, rough idle, and coolant seepage can compromise engine performance and reliability. This is the direct replacement engineered to restore factory-spec sealing integrity.

Constructed with a plastic upper plenum design, this gasket set is manufactured to exact OEM specifications, ensuring proper fitment between the intake manifold and cylinder head. The MAHLE ORIGINAL/CLEVITE gasket employs advanced elastomer materials and precision engineering to withstand the thermal cycling and pressure demands of 5.3L and 6.0L LS engines, which routinely see elevated operating temperatures in truck and performance applications. Proper gasket sealing is critical for maintaining correct fuel mixture, preventing unmetered air from bypassing the mass airflow sensor, and keeping coolant where it belongs—in the cooling system, not dripping onto the valley pan.

This replacement gasket set is ideal for Chevrolet Silverado, Tahoe, Suburban, Avalanche, and Trailblazer owners experiencing intake manifold-related issues between 2005 and 2014 model years. Installation is straightforward for experienced mechanics and fits directly into existing upper plenum locations without modification. At 0.43 lbs and compact dimensions, the gasket ships easily and stores safely until needed. Whether you're performing preventive maintenance on a high-mileage LS engine or diagnosing a vacuum leak, this MAHLE gasket set delivers the OEM-equivalent sealing reliability that keeps your Chevy running strong.