What is the compressed thickness of this head gasket?

The compressed operating thickness of this Cometic head gasket is 0.036 inches. This measurement is achieved after the gasket has been installed and torqued to specification.

Does this gasket require any sealant?

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 ensure a reliable seal on their own.

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

Viton is a heat-resistant synthetic rubber material rated for temperatures up to 482°F. It's used on the outer layers of this gasket to provide a robust seal in demanding environments and withstand high engine temperatures.

Specifications

Brand: Cometic Gasket
Part #: C4605-070
UPC: 191070545048

Cometic Toyota 4A-GE .070in MLS Cylinder Head Gasket - 83mm Bore - 20-Valve

Name: Cometic Toyota 4A-GE .070in MLS Cylinder Head Gasket - 83mm Bore - 20-Valve
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-toyota-4a-ge-070in-mls-cylinder-head-gasket-83mm-bore-20--t14-806975
Price: 135.73 USD
Availability: BackOrder

$135.73

On Backorder

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

Fits 2003-2018 Toyota 4Runner. Cometic .070in MLS head gasket with Viton coating for improved sealing.

Key Features

Fits 2003-2018 Toyota 4Runner, 1990-1992 Geo Prizm, 1988-1991 Toyota Corolla, 2003-2018 Toyota Tacoma, and 2003-2018 Toyota Tundra.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are coated on both sides with Viton, a heat-resistant elastomer rated up to 482°F.
Compressed operating thickness is 0.036 inches.
Features an 83mm bore and is designed for 20-valve engines.
Requires no additional sealants for 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

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About this part

Product Details

This Cometic Multi-Layer Steel (MLS) head gasket is built with an embossed stainless steel construction, featuring outer layers coated with Viton rubber. This design choice is important because Viton is a heat-resistant material capable of handling temperatures up to 482°F, making it well-suited for demanding sealing environments and various surface finishes.

The gasket has a compressed operating thickness of 0.036 inches and an 83mm bore, specifically designed for the 20-valve Toyota 4A-GE engine. MLS gaskets are known for their strength, thanks to multiple layers of stainless steel that resist corrosion and can handle the shearing forces between aluminum and cast iron blocks. Because they are made of multiple layers, they can also rebound and maintain their seal without needing additional sealants, which simplifies installation.

This gasket is a solid option for high-output engines, offering maximum sealing performance. It's suitable for applications using aluminum heads with either aluminum or cast iron blocks.