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

This Cometic head gasket has a bore size of 4.250 inches and a thickness of .040 inches. This specific sizing is important for proper fitment and compression ratios on compatible Harley-Davidson Twin Cam engines.

What Harley-Davidson models does this head gasket fit?

This gasket fits numerous Harley-Davidson Twin Cam models, including various Road King, Electra Glide, Street Glide, and Softail variants, typically from model years 1999 through 2016. Always verify your specific model and year against the full fitment list.

Is this gasket suitable for stock or modified engines?

Yes, this .040 inch thick gasket is suitable for both stock Twin Cam engines and those that have been modified. The precise thickness can be beneficial in engine rebuilds or when making minor adjustments to compression.

Cometic C10043 Head Gasket .040 Twin Cam 4.250in

Name: Cometic Harley-Davidson 4.250in Twin Cam .040 Head Gasket
Brand: Cometic Gasket
Price: 59.50 USD
Availability: InStock

Cometic Harley-Davidson 4.250in Twin Cam .040 Head Gasket

$59.50

On Backorder

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

Cometic C10043 head gasket for Harley-Davidson Twin Cam engines. Features a .040 inch thickness and 4.250 inch bore.

Key Features

Fits Harley-Davidson Twin Cam engines with a 4.250 inch bore.
Gasket thickness is .040 inches.
Designed to seal the cylinder head to the engine block.
Helps contain combustion pressures and prevent fluid leaks.
Suitable for engine rebuilds and modifications.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

This is the Cometic C10043 head gasket, specifically made for Harley-Davidson Twin Cam engines with a 4.250 inch bore. It's a .040 inch thick gasket, which is a common size for engine rebuilds or modifications where you might want to adjust compression slightly. This gasket is designed to create a solid seal between your cylinder head and the engine block, which is crucial for keeping combustion pressures contained and preventing leaks of oil or coolant.

Cometic is known for making well-built gaskets, and this one is no exception. It's constructed to handle the high temperatures and pressures found in a V-twin engine. The .040 inch thickness is a precise measurement that ensures it will work correctly with your engine's existing components, assuming they are within spec. When you're putting your engine back together, a reliable head gasket like this one is essential for proper performance and longevity.

This gasket fits a wide range of Harley-Davidson models from the late 90s through the mid-2010s, including popular bikes like the Road King, Street Glide, and Fat Boy. Make sure to check the full fitment list to confirm it's the right part for your specific motorcycle.