What does the .040in designation mean for this head gasket?

The .040in refers to the thickness of the head gasket. This specific thickness is important for achieving the correct compression ratio and valve-to-piston clearance in your 5.7L HEMI engine, especially if you've had machine work done on the block or heads.

Does this gasket come with any hardware or sealant?

This Cometic MLX head gasket does not require any additional sealants, as its design ensures a proper seal on its own. The gasket itself is the only component included for sealing the cylinder head to the engine block.

Is this gasket compatible with all 5.7L HEMI engines?

This gasket is designed for the 5.7L Gen-3 HEMI engine with a 4.000 inch bore. It fits a wide variety of Chrysler, Dodge, and Jeep models from the mid-2000s through 2019, but always verify your specific vehicle's engine and bore size.

Specifications

Brand: Cometic Gasket
Part #: C15315-040
UPC: 191070236519

Cometic Chrysler HEMI 5.7L 4.000in Bore .040in MLX Head Gasket - Right

Name: Cometic Chrysler HEMI 5.7L 4.000in Bore .040in MLX Head Gasket - Right
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chrysler-hemi-5-7l-4-000in-bore-040in-mlx-head-gasket-rig-t14-133820
Price: 121.00 USD
Availability: InStock

$121.00

Only 3 left in stock

Cometic Chrysler HEMI 5.7L .040in MLX Head Gasket - Right. Ensures a solid seal for your engine rebuild.

Key Features

Fits a wide range of Chrysler, Dodge, and Jeep vehicles with the 5.7L HEMI engine.
Features a 4.000 inch bore size and is .040 inches thick.
Utilizes Cometic's MLX (Multi-Layer Stopper) technology for improved sealing.
Integrated stopper layer enhances combustion chamber sealing and clamp load.
Made from the same materials as Cometic MLS head gaskets for durability.
Requires no sealants or re-torque after 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

No-fit, no charge. Wrong part? Send it back, free return label.

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About this part

Product Details

If you're rebuilding the top end of your Chrysler 5.7L HEMI, getting the cylinder head gaskets seated correctly is crucial for a leak-free seal. This Cometic MLX head gasket is specifically made for the 4.000-inch bore and is .040 inches thick, designed for the right-side cylinder head.

Cometic's MLX (Multi-Layer Stopper) technology uses an integrated stopper layer. This helps create a strong seal around the combustion chamber and improves the clamp load without causing distortion to the cylinder head. These gaskets are constructed from the same robust materials as Cometic's popular MLS head gaskets, offering a well-built solution for your engine project. A notable benefit is that they require no sealants and do not need to be re-torqued after installation, simplifying the assembly process.