O-Ring for 1.625" Bolt-On Bung - 0.103 Thick, Buna

This is the same O-ring used to seal the 4 x 2" bolt flange on our 1 5/8" Bolt-On Filler Cap Assembly (Part No. 1825-302). If your flange is starting to leak, a new O-ring may solve the problem. Buna N (nitrile) rubber is resistant to petroleum (oil, pure gasoline). Not for use with alcohol.

Note: This is not interchangeable with the cap O-ring (which seals the cap to the bung), This O-ring will not replace the flat gasket used on fuel filler bungs. Your flange must have a groove (inside the bolt circle) to accept this O-ring. Not designed to fit any other brand or model.