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: Cadillac;

Calais 1968-1970 (472 c.i.d),

Commercial Chassis 1977-1979 (425 c.i.d),

Deville 1968-1970 (472 c.i.d) 1977-79 (425 c.i.d) 1980 (350 c.i.d)

ElDorado 1968-69 (472 c.i.d) 1970 (500 c.i.d) 1977-78 (425 c.i.d) 1980 (350 c.i.d)

Fleetwood Brougham 1967 (429 c.i.d) 1977-79 (425 c.i.d) 1980 (350 c.i.d)

Seville 1976-1980 (350 c.i.d)