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: Oldsmobile;
442 1968-70 (350/400 c.i.d) 1970-71 (455 c.i.d)
Custom Cruiser 1971-72 (455 c.i.d) 1973 (350 c.i.d) 1973-74 (455 c.i.d) 1977 (350/403 c.i.d) 1980 (307 c.i.d)
Cutlass 1968 (350/400 c.i.d) 1969 (350 c.i.d) 1970-74 (350/455 c.i.d) 1977 (350/403 c.i.d)
Cutlass Supreme 1968-69 (350 c.i.d)
Delmont 1968 (350/455 c.i.d)
Delta 88 1968-74 (350/455 c.i.d) 1977 (350/403 c.i.d) 1980 (307 c.i.d)
F-85 1968-69 (350 c.i.d) 1970 (350/455 c.i.d) 1971 (350 c.i.d) 1972 (350/455 c.i.d)
Hurst/Olds 1968-69 (455 c.i.d)
Ninety-Eight (98) 1968-71 (455 c.i.d) 1972-74 (350/455 c.i.d) 1977 (350/403 c.i.d.) 1980 (307 c.i.d)
Omega 1973-74 (250/350 c.i.d) 1977 (350 c.i.d.)
Toronado 1968-74 (455 c.i.d) 1977 (350/403 c.i.d.) 1980 (307 c.i.d)
Vista Cruiser 1968-69 (350/400 c.i.d) 1970-74 (350/455 c.i.d) 1976 (455 c.i.d) 1977 (350/403 c.i.d)