Gaskets and Seals› Engine Gaskets and Seals
Cometic Gasket
Cometic Harley-Davidson 3 3/4in Big Bore Top End Kit For 88-90 1200 EVO Sport
SKU: C006 C9775
Easy — 1–2 hours
Description
Part #: C9775
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.
Top End EST Gasket Kit | 3.750in. Bore
MIA's Description
Cometic's commitment is to provide innovative, quality gaskets that maximize engine power and performance, especially for today's lightweight engines that produce high horsepower, cylinder pressures, clamp loads, and extreme temperatures. These gaskets are proudly made in the USA using materials manufactured on American soil. The company continually updates and expands its library of gaskets for various applications, including Powersports, Street Bikes, Snowmobiles, Harley-Davidson, and V-Twin vehicles.
Fitment
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Specifications
| Brand | Cometic Gasket |
| Part Number | C006 C9775 |
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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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