Fits Chevrolet Silverado GMC Sierra Hummer 6.6 Duramax LML LLY Head Gasket Set

Head Gasket Set for Chevrolet Silverado, GMC Sierra, and Hummer 6.6 Duramax LML LLY

This head gasket set provides the top-end sealing components needed to reseal the cylinder heads on 6.6 Duramax LML and LLY diesel engines in Chevrolet Silverado, GMC Sierra, and Hummer applications.

Overview

This head gasket set supplies the gaskets and seals required when servicing the cylinder heads on a 6.6 Duramax LML or LLY engine. It covers the sealing points that come apart during head work, so you can complete the job with one kit. The set suits Chevrolet Silverado, GMC Sierra, and Hummer owners tackling a top-end rebuild or head gasket replacement.

Built For Performance

• Multi-layer steel style head gaskets designed to hold combustion pressure
• Includes valve cover and intake gaskets for a complete top-end reseal
• Exhaust manifold gaskets included to reseal the exhaust side during head work
• Engineered for the 6.6 Duramax LML and LLY diesel platforms
• Kit format bundles the gaskets needed for both heads in one purchase

Fits These Machines

• for Chevrolet Silverado with 6.6 Duramax LML
• for Chevrolet Silverado with 6.6 Duramax LLY
• for GMC Sierra with 6.6 Duramax LML
• for GMC Sierra with 6.6 Duramax LLY
• for Hummer with 6.6 Duramax

On-The-Job Use

• Head gasket replacement on 6.6 Duramax diesel engines
• Top-end rebuilds and cylinder head service
• Resealing intake and exhaust components during head work
• Heavy-duty truck and SUV repair in the shop or driveway

Specs At A Glance

Good To Know

Q: Are head bolts included in this set? A: This listing covers the head gasket set itself, so check the contents list and source head bolts separately if your job requires new torque-to-yield fasteners.

Q: Should both heads be serviced at once? A: On a 6.6 Duramax it is common practice to service both cylinder heads together, and this set supplies gaskets for the full top end.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.