MOPAR 1961-1971 Model 51 Auxillary Heater Core 31047 If the fuel tank is

If the fuel tank is under the rear deck of a coupe the minimum is 4 gallons

This tube design provides equal volumetric throughput but increases tube surface area by 293% thus requiring fewer tubes and still achieving better heat exchange

If you need to gain access to the coolant before or after cooling it this little inline bypass will do the trick

The 1 1/2 tons with a 131" wb or 157" wb

MOPAR 1961-1971 Model 51 Auxillary Heater Core 31047 If the fuel tank isIn the 1961 to 1971 period Mopar produced a Model 51 auxillary seat heater core for the Conventional and W200 crew cab. There are two cores in sequence. We require a pattern or a drawing to construct this heater core. We do not keep this heater core in stock & will need to fabricate it. Our build queue varies. Present Lead times. Made in the USA of copper and brass