Gaskets and Seals› Engine Gaskets and Seals
Cometic Gasket
Cometic 70-84 Harley-Davidson Shovelhead 3 5/8in Big Bore Complete Gasket Kit 4 SP
SKU: C006 C9154
Easy — 1–2 hours
Description
Part #: C9154
Today's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic's gaskets are proudly made in the USA with materials manufactured on American soil. We are constantly updating and adding models to our ever growing library of gaskets for Powersports, Street Bikes, Snowmobiles, Harley-Davidson and V-Twin applications.
Complete EST Gasket Kit | 3.625in. Bore
MIA's Description
Fitment
Fitment Guaranteed
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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
| Brand | Cometic Gasket |
| Part Number | C006 C9154 |
Videos
Review and Install of the Cometic Gasket for The Harley Primary Cover.
James Gasket Kits Buyers Guide for Harley at RevZilla.com
Replacing the outer Primary Cover and Gasket on my 2004 Harley Dyna FXDI Super Glide - Take 2
T-Man Tech Tip on the Milwaukee-Eight® Piston Jet Oilers
Harley Davidson, FXD "Dyna Super Glide" (Primary Oil Change) !
AMF Shovelhead Lowrider Restoration -24 - Stator, Inner primary and Transmission Installation
Cometic Gaskets presented by J&P Cycles.
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Reviewing Cometic's MLX Head Gaskets
Harley Davidson Exhaust Gasket! How to install.
Cometic Gasket failure
SEMA 2016: Cometic Gaskets at the Forefront of Gasket Technology
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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