What is the main benefit of a multi-layer steel (MLS) head gasket?

Multi-layer steel head gaskets offer improved sealing capabilities under high pressure and temperature compared to older materials. Their construction allows them to conform better to the sealing surfaces, helping to prevent leaks and maintain consistent engine performance.

What does the .040 inch thickness signify for this gasket?

The .040 inch thickness refers to the compressed gasket height. This specific measurement is often chosen by builders to achieve a particular compression ratio, especially when other engine components like pistons or cylinder heads have been modified.

Does this gasket come with any hardware or additional seals?

This product is for the head gasket only. It is recommended to check the manufacturer's installation instructions or consult with a mechanic to determine if any additional seals, O-rings, or hardware are needed for your specific engine rebuild.

Cometic Gasket Head Gasket .040 4 1/8in Twin Cam C10042

Name: Cometic Harley-Davidson 4 1/8in Twin Cam .040 Head Gasket
Brand: Cometic Gasket
Price: 59.50 USD
Availability: InStock

Cometic Harley-Davidson 4 1/8in Twin Cam .040 Head Gasket

$59.50

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Cometic Harley-Davidson 4 1/8in Twin Cam .040 Head Gasket

Key Features

Fits 1999-2016 Harley-Davidson Twin Cam models with 4 1/8 inch bore.
Multi-layer steel (MLS) construction for durability and a strong seal.
.040 inch thickness is suitable for various engine builds and compression targets.
Designed to provide a reliable seal for the combustion chamber.
A popular choice for engine rebuilds and repairs on many Harley-Davidson motorcycles.

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Will this fit your vehicle?

Product Details

This Cometic head gasket is made with a multi-layer steel (MLS) construction, a well-built choice for rebuilding or repairing your Harley-Davidson Twin Cam engine. The .040 inch thickness is a common size that can help achieve a desired compression ratio, especially when paired with other engine modifications. MLS gaskets are known for their ability to seal well under high pressure and temperature, making them a solid option for performance-oriented builds or everyday riding.

Designed to fit Harley-Davidson Twin Cam engines with a 4 1/8 inch bore, this gasket is built to seal the combustion chamber effectively. The multi-layer steel design offers good conformity to sealing surfaces, helping to prevent leaks and maintain consistent compression. This makes it a reliable choice for ensuring your engine runs smoothly and efficiently.

This gasket fits a wide range of Harley-Davidson models, including popular bikes like the FLHR Road King, FLHTC Electra Glide Classic, and FLSTF Fat Boy from the late 90s through 2016. When you're rebuilding the top end of your Twin Cam, using a quality gasket like this one is crucial for a lasting seal.