-3/8-18 NPTF-, Phoenix, V8, Chevrolet small block, with factory gauges & aftermarket or 1981-up cylinder... see more-3/8-18 NPTF-, Phoenix, V8, Chevrolet small block, with factory gauges & aftermarket or 1981-up cylinder heads which have a smaller sending unit hole (correct resistance and connection, produces accurate gauge display)
-O.E.M. replacement made in U.S.A.-, blower motor, Ventura 1st design: 5 terminals on relay, 2... see more-O.E.M. replacement made in U.S.A.-, blower motor, Ventura 1st design: 5 terminals on relay, 2 plastic connectors attach to relay