What specific vehicles does this gasket kit fit?

This Cometic gasket kit is designed for GM LLY and LBZ Duramax engines found in models like the Chevrolet Silverado 2500 HD, Chevrolet Express 2500, GMC Sierra 2500 HD, and GMC Savana 3500, primarily from the 2005 to 2007 model years.

What does the .053in MLX cylinder head gasket mean?

The .053 inch thickness refers to the compressed thickness of the multi-layer steel (MLS) head gasket. MLX is Cometic's designation for their advanced MLS head gaskets, which are built for high performance and durability.

Does this kit include everything needed for a top-end rebuild?

The Cometic StreetPro Top End Gasket Kit includes all the necessary gaskets and seals specifically for the top end of the engine. It's always a good idea to consult your service manual to ensure no other specialized components or fluids are required for your specific rebuild.

Specifications

Brand: Cometic Gasket
Part #: PRO3009T-4100-053
UPC: 191070483296

Cometic GM LLY/LBZ Duramax Top End Gasket Kit - 4.100in Bore - .053in MLX Cylinder Head Gasket

Name: Cometic GM LLY/LBZ Duramax Top End Gasket Kit - 4.100in Bore - .053in MLX Cylinder Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-lly-lbz-duramax-top-end-gasket-kit-4-100in-bore-053in--t14-804643
Price: 746.21 USD
Availability: InStock

$746.21

Only 1 left in stock

Cometic GM LLY/LBZ Duramax Top End Gasket Kit - 4.100in Bore - .053in MLX Cylinder Head Gasket. Includes all necessary gaskets and seals for a rebuild.

Key Features

Fits Chevrolet and GMC LLY/LBZ Duramax trucks and vans from 2005-2007.
Includes all necessary gaskets and seals for a top-end engine rebuild.
Features a multi-layer steel (MLS) cylinder head gasket.
Cylinder head gasket has a 4.100 inch bore and a .053 inch thickness.
Utilizes quality gasket materials including MLS, AFM, Aramid Fiber, and Armor Clad.
No additional sealer is needed for installation.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042

Will it fit your car?

About this part

Product Details

If you're rebuilding the top end of your GM LLY or LBZ Duramax engine, this Cometic StreetPro Top End Gasket Kit is a solid option. It bundles all the gaskets and seals you'll need to get the job done right, saving you the hassle of sourcing each piece individually. The kit features a multi-layer steel (MLS) cylinder head gasket with a .053 inch thickness and a 4.100 inch bore, designed to handle the demands of these powerful diesel engines.

Cometic uses quality gasket materials in their StreetPro kits, including MLS, AFM, Aramid Fiber, and Armor Clad, ensuring a reliable seal for your engine rebuild. These materials are chosen for their durability and ability to perform under the heat and pressure typical of a Duramax engine. A notable feature is that no additional sealer is needed for installation, which can simplify the assembly process. This kit is designed to fit a range of GM trucks and vans from the mid-2000s, such as the Chevrolet Silverado 2500 HD, GMC Sierra 3500, and Chevrolet Express 2500.

When undertaking a top-end rebuild, having a complete gasket kit like this one from Cometic can make a significant difference. It ensures you have the correct components for a proper seal, which is critical for engine performance and longevity. Always refer to your vehicle's service manual for specific installation procedures and torque specifications.