Cometic Gasket · New
Cometic 66-84 Harley-Davidson Shovelheads 3 5/8in EST Top End Gasket Kit
MPN C9918 · Store SKU cgsC9918
Supplier stock checked 11/7/2026, 6:00:02 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
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. Cometic utlizes their in-house dynamometersand engine assembly rooms to ensure quality and reliability Top End EST Gasket Kit; 3.625in. Bore Top End Kit, 3-5/8" Bore Top End Gasket Kit
Manufacturer fitment & guides
Check C9918 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
