What is the purpose of the HP shim technology in this gasket?

The HP shim technology is designed to increase the clamping force around the combustion chamber. This helps to improve the sealability of the head gasket, especially in open deck engine blocks.

What does the Viton coating on the outer layers do?

The Viton coating provides excellent resistance to heat and oil. This helps the gasket maintain a strong and reliable seal even under demanding engine conditions.

Does this head gasket come with all the necessary hardware for installation?

This product is for the head gasket only. It is recommended to check the manufacturer's installation guide or consult with a professional to determine if additional hardware, such as head bolts or seals, are needed for your specific repair.

Specifications

Brand: Cometic Gasket
Part #: C15376-062
UPC: 191070433215

Cometic GM LB7/LLY/LBZ/LMM/LGH/LML Duramax 4.130in Bore .062in MLX Head Gasket LHS

Name: Cometic GM LB7/LLY/LBZ/LMM/LGH/LML Duramax 4.130in Bore .062in MLX Head Gasket LHS
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-lb7-lly-lbz-lmm-lgh-lml-duramax-4-130in-bore-062in-mlx-t14-461300
Price: 207.65 USD
Availability: BackOrder

$207.65

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Cometic GM LB7/LLY/LBZ/LMM/LGH/LML Duramax .062in MLX Head Gasket. Ensures a strong seal for your open deck block.

Key Features

Fits 2001-2016 Chevrolet and GMC Duramax diesel trucks.
Features Cometic's HP shim technology for increased clampload around the combustion chamber.
Embossed outer layers are coated with Viton for enhanced sealing and durability.
Designed with a 4.130 inch bore and a .062 inch thickness.
Specifically built for GM LB7, LLY, LBZ, LMM, LGH, and LML Duramax engines.

⚠️ 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 Duramax diesel, specifically models like the LB7, LLY, LBZ, LMM, LGH, or LML, a solid head gasket is crucial for sealing the combustion chamber. This Cometic MLX head gasket is built to handle the demands of these powerful engines, ensuring a reliable seal for your open deck block.

This gasket features Cometic's HP shim technology, which is designed to increase clamping force around the combustion chamber. This improved sealability is especially important for open deck designs. The embossed outer layers are coated with Viton, a material known for its excellent resistance to heat and oil, helping to maintain a tight seal under tough operating conditions. With a bore size of 4.130 inches and a thickness of .062 inches, it's designed to fit specific Duramax applications, helping to restore proper compression and prevent leaks.

This head gasket fits a wide range of GM trucks, including models like the Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD. Always refer to the manufacturer's installation instructions to ensure proper setup for your specific vehicle.