Available here is a Genuine GM thermo controlled, 3 port vacuum switch in GM box.
This is NOS.
Replaces GM #'s: 1238524, 3016754, 3030975, 413473, 419591
Fits: Pontiac;
Bonneville 1968-69 (400/428 c.i.d) 1970 (350/400/455 c.i.d) 1971 (400/455 c.i.d) 1972-73 (455 c.i.d) 1976 (400 c.i.d) 1977 (301/350/400/403 c.i.d) 1978 (400 c.i.d) 1979 (403 c.i.d)
Catalina 1968-69 (400/428 c.i.d) 1970-73 (350/400/455 c.i.d) 1976 (350/400 c.i.d) 1977 (301/350/400/403 c.i.d) 1978 (400/403 c.i.d)
Executive 1968-69 (400/428 c.i.d) 1970 (350/400/455 c.i.d)
Firebird 1968-70 (350/400 c.i.d) 1971-73 (350/400/455 c.i.d) 1973 (250 c.i.d) 1976 (350/400 c.i.d) 1977 (301/350/400/403 c.i.d) 1978-79 (400/403 c.i.d)
Grand LeMans 1976 (350/400 c.i.d) 1977 (301/350/400/403 c.i.d)
Grand Prix 1968-69 (400/428 c.i.d.) 1970-73 (400/455 c.i.d) 1976 (350/400 c.i.d.) 1977 (301/350/400/403 c.i.d)
Grand Safari 1971 (400/428 c.i.d) 1976 (400 c.i.d) 1977 (301/400/403 c.i.d) 1978 (400/403 c.i.d)
Grandville 1971 (400/455 c.i.d) 1972 (455 c.i.d) 1973 (400/455 c.i.d)
GTO 1968-69 (499 c.i.d) 1970 (350/400/455 c.i.d) 1971 (400/455 c.i.d)
LeMans 1968-69 (350/400/428 c.i.d) 1970-72 (350/400/455 c.i.d) 1973 (250/350/400/455 c.i.d) 1976 (350/400 c.i.d) 1977 (301/350/400/403 c.i.d)
Safari 1969 (350 c.i.d)
Safari Wagon 1968 (350/400 c.i.d) 1970 (350/400 c.i.d)
Tempest 1968 (350/400 c.i.d) 1969 (400/428 c.i.d) 1970 (350/400 c.i.d)
Ventura 1971 (307 c.i.d) 1972 (307/350 c.i.d) 1973 (250/350 c.i.d) 1976 (350 c.i.d) 1977 (301 c.i.d.)