Gaskets and Seals› Engine Gaskets and Seals

Cometic Gasket

Cometic Harley-Davidson ,1999-10 T/C Breather Cover Gasket. 10Pk .031F

$13.60

SKU: C006 C9579

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

Beginner — under 30 min

Description

Part #: C9579

Requires less clamp load

MIA's Description

The Cometic C9579 is a breather cover gasket for Harley-Davidson Twin Cam engines, covering models from 1999-2010. This gasket is designed as an OEM replacement for part number 17591-99 and is constructed from high-temperature material. It is sold in a pack of 10 and features a thickness of 0.031 inches, requiring less clamp load.

Its high-temp material composition helps prevent oil seepage, ensuring effective performance.

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 C9579

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