What is the compressed thickness of this head gasket?

This Cometic Multi-Layer Steel (MLS) head gasket has a compressed operating thickness of 0.027 inches. This specific thickness is important for maintaining proper compression ratios and sealing.

Do I need to use any sealant with this head gasket?

No, this Cometic MLS head gasket is designed to provide maximum sealing performance without the need for additional sealants. The Viton coating on the outer layers ensures a reliable seal right out of the box.

What is the advantage of Multi-Layer Steel (MLS) construction?

MLS gaskets are made from multiple layers of stainless steel, which increases their strength and ability to rebound. This construction helps them resist shearing forces and corrosion, making them ideal for high-output engines.

Specifications

Brand: Cometic Gasket
Part #: C5883-027
UPC: 191070143060

Cometic GM 6.6L Duramax Diesel 01-06 4.100 inch Bore .027 inch MLS Left Head Gasket

Name: Cometic GM 6.6L Duramax Diesel 01-06 4.100 inch Bore .027 inch MLS Left Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-6-6l-duramax-diesel-01-06-4-100-inch-bore-027-inch-mls-t14-304218
Price: 158.49 USD
Availability: BackOrder

$158.49

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 6.6L Duramax Diesel .027in MLS Left Head Gasket. Ensures a strong seal for high-output engines.

Key Features

Fits 2001-2016 Chevrolet and GMC 6.6L Duramax diesel trucks and SUVs.
Multi-Layer Steel (MLS) construction provides increased strength and corrosion resistance.
Features a 4.100 inch bore and a compressed operating thickness of 0.027 inches.
Outer layers are embossed and coated with heat-resistant Viton rubber.
Designed for high-output engines and requires no additional sealants.
Suitable for use with aluminum heads to aluminum blocks or cast iron blocks.

⚠️ 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 6.6L Duramax diesel, getting the right head gasket is crucial for a solid seal. This Multi-Layer Steel (MLS) gasket from Cometic is specifically designed for the left side of your engine, featuring a 4.100-inch bore and a compressed thickness of 0.027 inches. It's built to handle the demands of high-output engines, ensuring reliable performance and preventing leaks between the cylinder head and the block.

Cometic constructs these gaskets from multiple layers of stainless steel, which gives them increased strength and the ability to rebound, helping to resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle extreme temperatures up to 482°F (250°C) and works well with both aluminum and cast iron blocks. This construction means you don't need any extra sealants; the gasket is ready to seal right out of the box, making installation more straightforward. This gasket fits a wide range of GM trucks and SUVs, including Chevrolet Silverado and GMC Sierra models from 2001 through 2016.