James Gaskets Big Twin Rocker Box Assembly Gasket - Cover Upper Rubber Early 5/… — Harley-Davidson (1984-1991)

James Gaskets Big Twin rocker box assembly gasket for upper cover application on early V-twin motorcycles. Rubber construction seals the rocker box cover to prevent oil leaks.

Features

• Rubber gasket material
• OEM replacement spec
• Upper cover position

Specifications

• Brand: James Gaskets
• Manufacturer Part #: 17356-84-A
• Length: 6.95 in
• Width: 9.15 in
• Height: 0.5 in
• Weight: 0.125 lbs

Fitment

Fits upper rocker box cover applications on early Big Twin V-twin motorcycles.

Frequently Asked Questions

What does this gasket seal?

It seals the rocker box upper cover to the cylinder head, preventing oil weepage around the gasket perimeter.

Is this an OEM replacement?

Yes — James Gaskets manufactures this to OEM specification as a direct replacement.

Will this fit Milwaukee-Eight engines?

No — this part is for early Big Twin engines. Milwaukee-Eight rocker boxes use different gasket designs.

What are the dimensions?

6.95 in long × 9.15 in wide × 0.5 in thick rubber gasket.