What is the bore size and thickness of this head gasket?

This Cometic head gasket has a bore size of 4.000 inches and a thickness of .052 inches. It's specifically designed for the 5.7L Gen-3 Hemi engine.

What does the HP shim technology do?

The HP shim technology increases the clamping force around the combustion chamber. This helps to create a more robust seal, which is particularly beneficial for engines with open deck blocks.

What is the Viton coating on the outer layers for?

The Viton coating on the embossed outer layers enhances the gasket's sealing performance and durability. Viton is known for its resistance to high temperatures and various fluids, helping to maintain a strong seal.

Specifications

Brand: Cometic Gasket
Part #: C15315-052
UPC: 191070437893

Cometic Chrysler 5.7L Gen-3 Hemi 4.0in Bore .052in MLX RHS Head Gasket

Name: Cometic Chrysler 5.7L Gen-3 Hemi 4.0in Bore .052in MLX RHS Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chrysler-5-7l-gen-3-hemi-4-0in-bore-052in-mlx-rhs-head-ga-t14-481524
Price: 127.05 USD
Availability: BackOrder

$127.05

On Backorder — Expected to ship by Jul 4, 2026

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

Cometic Chrysler 5.7L Gen-3 Hemi head gasket with a 4.000in bore and .052in thickness. Features HP shim technology for improved sealing.

Key Features

Fits many Chrysler, Dodge, Jeep, and Ram vehicles with the 5.7L Gen-3 Hemi engine.
Features a 4.000-inch bore and a .052-inch thickness.
Includes HP shim technology to increase clampload around the combustion chamber.
Embossed outer layers are coated with Viton for improved sealing and durability.
Designed for open deck block configurations.

⚠️ 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

This Cometic MLX RHS head gasket is designed for Chrysler 5.7L Gen-3 Hemi engines with a 4.000-inch bore and a thickness of .052 inches. It's a well-built component that fits a wide range of vehicles, including models like the Dodge Charger, Jeep Grand Cherokee, and Ram 1500.

The gasket incorporates HP shim technology, which increases the clamping force around the combustion chamber. This advanced feature helps create a stronger seal, especially important for open deck block designs. The outer layers of the gasket are embossed and coated with Viton, a material known for its resistance to heat and fluids, further enhancing its sealing capabilities under demanding conditions.