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Engine Oil Fill Caps:

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Hardin Marine
Polished Billet Aluminum Weld-In Oil Cap
These beautifully finished screw-in oil caps are great for many applications.  These aluminum oil caps are designed as weld-in units.  Each cap features an O-ring seal  to prevent oil leaks.
Part No. Description
620-45751 Polished Weld-In Oil Cap
Hardin Marine
Push-In Chrome Oil Fill Plug
Push-in design for all applications requiring a sealing type filler plug. Chrome plated top section. Fits most aftermarket and OEM valve covers with 1.22" diameter hole.
Part No. Description
620-68860 Chrome Oil Filler Plug
Hardin Marine
Chrome Twist-In Oil Cap

These chrome plated oil caps use two tabs to register into valve covers equipped with two slots. These caps twist-in to provide a secure seal.

Part No. Description
620-70125 Chrome Twist-in Oil Cap
Hardin Marine
Chrome Thread-In Oil Cap For Late Model H/P Valve Covers
These chrome plated ABS style oil caps are designed to thread into most late model OEM style valve covers.
Part No. Description
620-70163 Chrome Screw-in Oil Cap

Oil Filler Plug
These oil resistant rubber oil fill plugs are used to seal oil fill holes in valve covers.  This cap measures 1.22 in diameter.
Part No. Description
620-70186 Rubber Oil Fill Plug