What specific vehicles does this gasket kit fit?

This Cometic gasket kit is designed for GM LML and LGH Duramax engines found in Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD trucks, as well as Chevrolet Express 2500/3500 and GMC Savana 2500/3500 vans, model years 2011 through 2016.

What is the thickness of the cylinder head gasket included?

The MLX cylinder head gasket included in this kit has a thickness of .047 inches. This specific thickness is important for achieving the correct compression ratio and sealing in your engine rebuild.

What types of materials are used in this gasket kit?

This kit uses a variety of quality gasket materials, including Multi-Layer Steel (MLS), AFM (Advanced Sealing), Aramid Fiber, and Armor Clad. These materials are selected to ensure reliable sealing for your engine rebuild.

Specifications

Brand: Cometic Gasket
Part #: PRO3012T

Cometic GM LML/LGH Duramax 4.130in Bore .047in MLX Cylinder Head Gasket Top End Gasket Kit

Name: Cometic GM LML/LGH Duramax 4.130in Bore .047in MLX Cylinder Head Gasket Top End Gasket Kit
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-lml-lgh-duramax-4-130in-bore-047in-mlx-cylinder-head-g-t14-718752
Price: 636.65 USD
Availability: BackOrder

$636.65

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Cometic GM LML/LGH Duramax Top End Gasket Kit. Features a .047in MLX head gasket for engine rebuilds.

Key Features

Fits Chevrolet and GMC Duramax LML/LGH engines from 2011-2016.
Includes all necessary gaskets and seals for a top-end engine rebuild.
Features a Multi-Layer Steel (MLS) MLX cylinder head gasket.
Cylinder head gasket has a 4.130 inch bore diameter.
Cylinder head gasket has a .047 inch thickness.
Utilizes a range of quality gasket materials like AFM, Aramid Fiber, and Armor Clad.

⚠️ 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

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About this part

Product Details

If you're rebuilding the top end of your GM LML or LGH Duramax engine, this Cometic Gasket PRO3012T StreetPro Top End Gasket Kit is a solid option. It's designed to cover all the gaskets and seals you'll need for that critical engine rebuild, ensuring a proper seal when you put everything back together. This kit is built for budget-minded builders who still want quality materials for their street-driven rods.

The heart of this kit is the MLX cylinder head gasket, which measures 4.130 inches in bore diameter and has a thickness of .047 inches. Cometic uses a variety of quality gasket materials across their StreetPro line, including MLS (Multi-Layer Steel), AFM (Advanced Sealing), Aramid Fiber, and Armor Clad. These materials are chosen to provide reliable sealing for the demanding environment inside your engine. This kit is designed to fit a range of heavy-duty trucks, including Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD models from 2011-2016, as well as Chevrolet Express and GMC Savana vans.

When you're undertaking an engine rebuild, having all the correct gaskets in one place saves you time and ensures you don't miss a crucial seal. This kit aims to provide that convenience and peace of mind, using well-built materials to help your Duramax engine run strong.