Mr Gasket Engine Coolant Thermostat Housing P/N:2557

Water Neck; w/Bolts And O-Ring; 0.5 in. Vacuum Switch Hole; Check To Insure Correct Fit;

Precision die cast, these water necks are first polished to a high luster, then chrome plated. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts.