Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Engines and Components› Belts and Pulleys
Cometic Gasket
Cometic Harley-Davidson Twin Cam Rucker Spec Engine Rebuild Kit
SKU: C006 C9638R
Easy — 1–2 hours
Overview
Show original supplier description
Part #: C9638R
Cometic utlizes their in-house dynamometersand engine assembly rooms to ensure quality and reliability
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Cometic Gasket |
| Part Number | C006 C9638R |
Videos
Cometic Gaskets presented by J&P Cycles.
Harley Davidson Rocker Box Gaskets Replacement Made EASY
How to Reassemble Top End Harley Twin-Cam (99-17)
How-To: Leaky Rocker Box Gasket Fix on Harley-Davidson Sportster
Harley Davidson Twin Cam - How To Disassemble Top End for Rebuild
Review and Install of the Cometic Gasket for The Harley Primary Cover.
Twin Cam Harley Engines Can Be Bulletproof
Harley-Davidson MLS Head gaskets | Torque Values | Doc Harley
Doc Harley’s caution for Twin Cam projects
Rocker Box Breathers for Twin Cam engines
HARLEY DAVIDSON TWIN CAM ROCKER BOX GASKET REPLACEMENT TIPS-N-TRICKS
TC88 Series: 21 How to install Harley rocker boxes & gaskets. BONUS: How to bleed down lifters
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Returns & Fitment
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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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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