What does MLX technology mean for this head gasket?

MLX (Multi-Layer Stopper) technology uses an integrated stopper layer to improve sealing around the combustion chamber and increase clamp load. This design helps ensure a reliable seal without distorting the cylinder bore.

Do I need to use any sealants with this Cometic head gasket?

No, this Cometic MLX head gasket is designed to be installed without any additional sealants. It also does not require a re-torque procedure after installation, simplifying the engine assembly process.

What specific Duramax engine codes does this gasket fit?

This gasket is made for the LB7, LLY, LBZ, LMM, LGH, and LML Duramax engine codes. It is designed for a 4.130-inch bore and has a thickness of .053 inches.

Specifications

Brand: Cometic Gasket
Part #: C15376-053

Cometic GM LB7/LLY/LBZ/LMM/LGH/LML Duramax .053in MLX Cylinder 4.130in Bore LHS Head Gasket

Name: Cometic GM LB7/LLY/LBZ/LMM/LGH/LML Duramax .053in MLX Cylinder 4.130in Bore LHS Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-lb7-lly-lbz-lmm-lgh-lml-duramax-053in-mlx-cylinder-4-1-t14-718771
Price: 207.65 USD
Availability: BackOrder

$207.65

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Cometic MLX Head Gasket for GM Duramax 6.6L engines. Features multi-layer stopper technology for improved sealing without sealants or re-torquing.

Key Features

Fits Chevrolet and GMC trucks and SUVs with GM 6.6L Duramax engines from 2001-2016.
Features Cometic's MLX (Multi-Layer Stopper) technology for improved combustion chamber sealing.
Integrated stopper layer increases clamp load around the cylinder without increasing bore distortion.
Designed for a 4.130-inch bore and a .053-inch gasket thickness.
Requires no sealants or re-torque after installation for a more straightforward job.
Specifically designed for LB7, LLY, LBZ, LMM, LGH, and LML Duramax engine codes.

⚠️ 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

When you're rebuilding the top end of your GM Duramax 6.6L engine, you need a head gasket you can trust. This Cometic MLX head gasket is designed specifically for the LB7, LLY, LBZ, LMM, LGH, and LML engine codes, featuring a 4.130-inch bore and a .053-inch thickness. It's built to handle the demands of these powerful diesel engines, ensuring a solid seal between your cylinder head and engine block.

Cometic's MLX (Multi-Layer Stopper) technology is a key feature here. It incorporates an integrated stopper layer that provides excellent sealing around the combustion chamber and increases clamp load without causing distortion in the bore. This means you get a reliable seal that holds up under pressure, and the best part is, it requires no additional sealants and doesn't need to be re-torqued after installation. This makes the installation process more straightforward and gives you peace of mind that the gasket will perform consistently.

This gasket fits a wide range of GM trucks and SUVs, including models like the Chevrolet Silverado 2500 HD, GMC Sierra 3500 HD, and Chevrolet Express 3500, covering years from 2001 through 2016. It's a well-built component that helps ensure your engine runs smoothly and efficiently.