Try this guy. Don't know if he has any heater parts, but ask him.
My name is Gustave Mazerolle, 700 route 113, Inkerman, New Brunswick E8P 1C6 Phone no. 506-336-2115
E.mail
gustavem@nb.sympatico.ca
I carry quite a number of new old stock NOS parts and a number of used or rebuilt new parts for 1950 -55
Dodge 4 x 4 military 3 quarter ton of different vehicles.
I carry new distributor caps condensers and points and rotors and 24 volts coils, used distributor covers
And sparkplug wires used, Carburaters repair kits and used carburaters for rebuilt , some used fuel pumps ,
Icarry new head gaskets copper and asbestos for L head 250 or 252 Canadian and new engine heads for same.
I have rebored engine blocks and motor job inserts (bearings) in the 20 and 30 thousandth of an inch, crank shaft rebuilt with main bearings,
I have used transmissions and new and used transfer cases and gear parts and the universal joints for jack shafts and for other shaft. Also used drive shafts
I have complete front housings rebuilt no drums and brake linings but has the differential and axles and knuckles, also I have wheel drums new and used, brake cylinder, left and right and master cylinder new and used as well as the rebuilt kits for same.
I have used voltage regulators and new circuts breakers 24 volts also some dash panels used and gauges new and used. Speedometer cables complete new and used, handbrake linings and drums.
I have water pumps new and rebuilt kits, fan belts new, rear and front axles I have user starters and generators
I carry some used body parts and frames and only one split front bumper for winch
I dismantle body parts as needed from chassis that I have left.
I have no manifolds left.