Cometic Twin Cam Lifter Cover Gasket - 10/PK Oe#18635-99 — Harley-Davidson (1999-2017)

Cometic Twin Cam lifter cover gasket in a 10-pack for V-twin motorcycle engines. Direct replacement for OEM part number 18635-99, engineered to seal the lifter cover without leaking under engine heat and vibration.

Features

• 10-pack quantity
• OEM replacement for part #18635-99
• Designed for Twin Cam V-twin engines

Specifications

• Brand: Cometic
• Manufacturer Part #: C9578F
• UPC: 191070024062
• Quantity: 10 per pack
• Length: 7.05 in
• Width: 6 in
• Height: 0.3 in
• Weight: 0.01 lbs

Fitment

Fits V-twin motorcycles equipped with Twin Cam lifter covers, including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

How many gaskets come in a pack?

10 gaskets per pack — ideal for shops, fleet maintenance, or riders who want spares on hand.

Is this the same as OEM Harley part #18635-99?

Yes — Cometic manufactures this gasket to OEM specifications as a direct replacement for part #18635-99.

Will this fit my Indian Motorcycle?

This part fits V-twin engines with Twin Cam lifter covers used in select Indian Motorcycle models. Verify your specific model year before ordering.

Do I need any special tools to install this?

Basic hand tools and gasket scraper are sufficient. Remove the lifter cover, clean the surface, and install the new gasket with the cover fasteners.