Fits: MC175/205 (1987), 4.3L (1988-92), 4.3L (Gen II) (1992-95), 4.3LX (Gen II) (1992-95) For: Oil cooler to thermostat housing with all four hose connectors cast into the thermostat housing (No "T" connector) Two hoses to manifold and two hoses to elbow.