New Thermostat Housing Kit Tee Valve Mercruiser 305 5.7 5.7l 5.0l 305 350 5.0
New thermostat housing complete with thermostat, gaskets, bronze 'T' and plastic ball valves. Thermostat Replaces part numbers 807252Q4, 23-47508T. Does not fit big block engines (big block has offset bolts).