Pro-werks Easy Turn Filler Cap Bolt-On Fuel Cell Bung Replacement Gasket, 1/16 Inch Thick Buna Material
Replacement Fuel Cell Gasket
Replacement Buna flange gaskets are available for both bolt patterns of Bolt-On Fuel Cell Bungs.
Be sure to check out the entire line up - Billet aluminum Easy Turn Fill Caps are a Pro-Werks specialty.
Frequently Asked Questions
Q: Is Buna rubber compatible with my fluid?
A: Buna is a synthetic rubber compound suitable for use with many fluids. Buna components may need to be replaced by a material compatible with the specific chemistry of some fluids.
Q: What should I use to lubricate the Buna O-ring?
A: Applied periodically, a light coating of Dielectric grease has proven to work well as an O-ring lubricant.
Q: How much do I need to tighten a fill cap?
A: It is not necessary to bottom the fill cap into the bung−just adequately seat the O-ring. The radial squeeze action on the O-ring creates a positive seal and helps prevent the cap from coming loose.










