Exterior Components Body Panels and Components

Cometic Gasket

Cometic Harley-Davidson 4in Twin Cam S/S Head Gasket .018in 2-Pk.

$59.50

SKU: C006 C9725-018

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: C9725-018

Requires less clamp load

MIA's Description

The Cometic C9725-018 is a Multi-Layer Steel (MLS) head gasket designed for Harley Twin Cam engines with a 4-inch bore. It features outer layers embossed and coated with Viton to withstand harsh sealing environments and load conditions.

This gasket utilizes Load Control Embossments (LCE) to promote an even torque load, reducing bore distortion and improving the piston ring seal for enhanced power. It is constructed from stainless steel and is made in the USA.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCometic Gasket
Part NumberC006 C9725-018

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy