Description:Cat® Oil Filler Plugs are designed, for your original equipment, to completely seal a system and to prevent any leaks. Cat® Plugs are held to the highest standards of quality and reliability. These caps and plugs are manufactured to exacting tolerances to ensure leak free connections.OEM direct replacement part.Application:Cat® oil filler plug is used on valve cover group. Consult your owner’s manual or contact your local Cat Dealer for more information.