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

$140.45

SKU: C006 C9775

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Cometic C9775 is a top-end EST gasket kit designed for Harley-Davidson 1200 EVO Sport models from 1988-1990. This kit features a 3.750-inch bore size.

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

BrandCometic Gasket
Part NumberC006 C9775

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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