1994-1999 Dodge Ram 3500 5.9L L6 DIESEL;. 1994-1999 Dodge Ram 3500 5.9L V8 GAS;. 1994-1999 Dodge Ram 3500 8.0L V10 GAS;. Gates - Driven By Possibility. Fuel Tank Cap;. Pre-Release Fuel Tank Cap;. Excess fuel system pressure is relieved through an internal spring and gasket valve that is specially designed to allow venting without losing liquid fuel.
