What is the compressed thickness of this head gasket?

When properly compressed during installation, this Cometic head gasket has an operating thickness of 0.036 inches. The gasket itself is listed at a thickness of .051 inches before compression.

What is Viton and why is it used on this gasket?

Viton is a type of synthetic rubber that is highly resistant to heat and harsh chemicals. It's used on the outer layers of this gasket to ensure a reliable seal in demanding engine conditions, withstanding temperatures up to 482°F.

Does this gasket require any additional sealants?

No, Cometic MLS head gaskets are designed to provide maximum sealing performance without the need for additional sealants. The multi-layer steel construction and Viton coating create a robust seal on their own.

Specifications

Brand: Cometic Gasket
Part #: C4357-051

Cometic Lexus / Toyota LX-470/TUNDRA .051 inch MLS Head Gasket 3.635 inch Right Side

Name: Cometic Lexus / Toyota LX-470/TUNDRA .051 inch MLS Head Gasket 3.635 inch Right Side
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-lexus-toyota-lx-470-tundra-051-inch-mls-head-gasket-3-635-t14-7074
Price: 111.44 USD
Availability: BackOrder

$111.44

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Cometic .051" MLS head gasket for Lexus, Toyota, and Dodge. Features Viton coating for superior sealing.

Key Features

Fits a range of Lexus, Toyota, and Dodge vehicles.
Multi-Layer Steel (MLS) construction for increased strength and corrosion resistance.
Outer layers are embossed and coated with Viton, a heat-resistant elastomer.
Viton coating withstands temperatures up to 482°F (250°C) and harsh sealing environments.
Center stainless steel layer allows for varied thickness requirements.
Compressed operating thickness is 0.036 inches.

⚠️ 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

This Cometic Multi-Layer Steel (MLS) head gasket is built with embossed stainless steel layers, featuring a Viton rubber coating on the outer surfaces. This design is crucial for sealing high-output engines effectively, especially when dealing with different block and head materials like aluminum to cast iron, as it can handle the shearing forces that arise. The Viton coating is heat resistant up to 482 degrees Fahrenheit, making it suitable for demanding sealing environments and various surface finishes.

The center layer is uncoated stainless steel, allowing for different thickness requirements, and in this case, it's set to a compressed operating thickness of 0.036 inches with an overall thickness of .051 inches. This gasket is designed for a 3.635-inch bore and is specifically for the right side application. It fits a range of vehicles including the Lexus LX470, Toyota Tundra, and Dodge Charger, offering a solid option for engine rebuilds where reliable sealing is paramount.