Cometic Evo Big Twin Rocker Box Gasket - Cover Gasket EVO 5/PK Oe#17355-84a — Harley-Davidson (1984-1999)

Cometic rocker box cover gasket for Evo Big Twin engines, engineered to seal the rocker box cover without leaking under heat and pressure. Five-pack quantity ideal for shops or riders maintaining multiple bikes.

Features

• 5-pack quantity
• OEM replacement gasket
• Fits Evo Big Twin rocker box covers

Specifications

• Brand: Cometic
• Manufacturer Part #: C9281
• OEM Reference #: 17355-84A
• Quantity: 5 per pack
• Weight: 0.16 lbs

Fitment

Fits Harley-Davidson and Indian Motorcycle Evo Big Twin engines with standard rocker box covers.

Frequently Asked Questions

How many gaskets are in this pack?

Five gaskets per pack — enough for multiple service intervals or to stock spares.

Will this fit my Twin Cam or Milwaukee-Eight?

No — this gasket is specific to Evo Big Twin engines. Twin Cam and Milwaukee-Eight engines require different part numbers.

Is this an OEM Harley gasket or an aftermarket replacement?

Cometic manufactures this as an OEM-equivalent replacement gasket to specification 17355-84A for Evo engines.

Do I need to use gasket sealant with this?

Check your service manual — some Evo rocker box applications benefit from a thin bead of gasket sealant on installation for a stronger seal.