Description
A failing derby cover seal is an easy way to turn a clean engine bay into an oil-weeping mess. The JAMES GASKET Derby Cover O-Ring is a molded rubber beaded seal with a metal insert, engineered to create a reliable, long-lasting barrier against oil leakage on Big Twin applications. Whether you’re running a billet, stamped, or cast cover, this U.S.-made seal fits them all and handles the thermal cycling that comes with real riding.
- Molded rubber construction
- Beaded design with metal insert
- Compatible with all cover types
- Fits Big Twin engines
- Prevents oil seepage
- Made in the U.S.A.
- Bolt-on installation
- OEM-equivalent quality






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