Standard Motor Products makes these four position heater blower motor switches which look period correct on our trucks:

HS-98

They also make an infinitely variable rheostat switch for both 6v and 12v systems. I like it on my heater because it lights up when you turn it on.

HS572 (12v)

HS-92 (6v)

www.ecatalog.smpcorp.com
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1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)