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Cometic Gasket

Cometic Harley-Davidson EVO Stock Bore 3.500in Head Gasket S/Steel 2Pk. .051in

$59.50

SKU: C006 C9689-051

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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

Part #: C9689-051

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.

.051in. MLS Cylinder Head Gasket | 3.500in. Gasket Bore. Pair

MIA's Description

The Cometic Harley-Davidson EVO Stock Bore 3.500in Head Gasket is a precision-engineered gasket designed for high-performance and racing applications. It features a 3.500" bore and a .500" compressed thickness, sold as a 2-pack. The gasket is constructed with premium materials to meet or exceed OEM specifications for durability and sealing.

This gasket is CNC-machined to seal combustion, water jackets, and oil passages simultaneously, eliminating the need for additional sealing compounds.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

BrandCometic Gasket
Part NumberC006 C9689-051

Videos

Cometic Gaskets presented by J&P Cycles.

Cometic Gaskets presented by J&P Cycles.
HOW TO CHOOSE A HEAD GASKET FOR A HARLEY EVO EVOLUTION MOTOR ENGINE - GASKETS IN STOCK

HOW TO CHOOSE A HEAD GASKET FOR A HARLEY EVO EVOLUTION MOTOR ENGINE - GASKETS IN STOCK
James Gaskets Product Review | Fix My Hog

James Gaskets Product Review | Fix My Hog
Review and Install of the Cometic Gasket for The Harley Primary Cover.

Review and Install of the Cometic Gasket for The Harley Primary Cover.
Cometic MLS Head Gaskets

Cometic MLS Head Gaskets
Reviewing Cometic's MLX Head Gaskets

Reviewing Cometic's MLX Head Gaskets
How-To: Leaky Rocker Box Gasket Fix on Harley-Davidson Sportster

How-To: Leaky Rocker Box Gasket Fix on Harley-Davidson Sportster

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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