What is the compressed thickness of this head gasket?

The compressed operating thickness of this Cometic head gasket is .036 inches. This is achieved after installation and under engine operating conditions.

Does this gasket require any special sealants for installation?

No, Cometic MLS head gaskets are designed to provide maximum sealing performance on their own and do not require additional sealants. They are built to seal effectively right out of the box.

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

Viton is a type of synthetic rubber that is highly resistant to heat, rated up to 482 F. It's used on the outer layers of this gasket to meet the demands of harsh sealing environments and ensure a reliable seal under high temperatures.

Specifications

Brand: Cometic Gasket
Part #: C4605-027
UPC: 191070117351

Cometic Toyota 4AG-GE 20V 1.6L 83mm Bore .027 inch MLS Head Gasket

Name: Cometic Toyota 4AG-GE 20V 1.6L 83mm Bore .027 inch MLS Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-toyota-4ag-ge-20v-1-6l-83mm-bore-027-inch-mls-head-gasket-t14-378519
Price: 106.52 USD
Availability: BackOrder

$106.52

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 MLS head gasket with 83mm bore and .027in thickness for reliable 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 rebound resistance.
Outer layers are embossed and coated with Viton, a heat-resistant rubber material rated up to 482 F.
The center shim layer is uncoated stainless steel, allowing for precise thickness control.
Features an 83mm bore size and a .027 inch uncompressed thickness.
Compressed operating thickness is .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 multiple embossed layers of stainless steel, featuring an outer layer coated with Viton rubber. This construction is designed to handle the high output engines common in performance builds. The Viton coating on the outer layers is heat resistant up to 482 F, making it suitable for demanding sealing environments and various surface finishes.

The center layer is uncoated stainless steel, allowing for precise thickness control. This particular gasket has a bore size of 83mm and an uncompressed thickness of .027 inches, with a compressed operating thickness of .036 inches. MLS gaskets are known for their strength and ability to rebound, resisting corrosion and providing maximum sealing performance without the need for additional sealants. They work well with both aluminum and cast iron blocks, handling the shearing forces that can occur between different metals.

This gasket is a solid option for rebuilding the top end of your 4A-GE 20-valve engine. It's designed to fit right and provide a dependable seal for your engine's critical components.