Exterior Components› Body Panels and Components

Cometic Gasket

Cometic Harley-Davidson Twin Cam 100mm Bore .018 Head Gasket

$59.50

SKU: C006 C9894-018

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

Easy — 1–2 hours

Description

The Cometic Gasket head gasket is a Multi-Layer Steel (MLS) gasket designed for a 100mm bore and a .018 thickness. It is manufactured from premium, fuel-resistant materials that will not creep, crack, or become brittle, ensuring long-term reliability. This gasket utilizes LCE (Load Control Embossments) to promote an even torque load across the sealing surface, leading to less bore distortion and a better piston ring seal. The outer layers are embossed and coated with Viton on both sides to handle demanding sealing environments and surface finishes.

Fitment

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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 C9894-018

Videos

Cometic Gaskets presented by J&P Cycles.

Cometic Gaskets presented by J&P Cycles.
Review and Install of the Cometic Gasket for The Harley Primary Cover.

Review and Install of the Cometic Gasket for The Harley Primary Cover.
How to Seal Harley Davidson Gaskets and Seals

How to Seal Harley Davidson Gaskets and Seals
James Gasket Kits Buyers Guide for Harley at RevZilla.com

James Gasket Kits Buyers Guide for Harley at RevZilla.com
Bikervation - Part 6 - Harley Sportster XL 1200R Rocker & Head Gasket Replacement /oil leak fix.

Bikervation - Part 6 - Harley Sportster XL 1200R Rocker & Head Gasket Replacement /oil leak fix.
Harley Davidson Primary Cover Gasket Install (Roadking)

Harley Davidson Primary Cover Gasket Install (Roadking)
Harley Sportster XL883L Rocker Box Upper and Lower Gasket Replacement

Harley Sportster XL883L Rocker Box Upper and Lower Gasket Replacement
Harley Davison primary gasket removal

Harley Davison primary gasket removal

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.

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