Auto City Classic - Diamond T

Diamond T built trucks in Chicago from 1905 until the line was folded into White Motor Company in 1967, and during its peak years was nicknamed 'the Cadillac of Trucks' for its polished chrome grilles, painted-and-pinstriped cabs, and meticulous build quality. The lineup ran from light pickups in the 1930s and 1940s through medium-duty and heavy conventionals, plus the iconic 980 and 981 ballast tractors that pulled tank transporters during World War II.

Surviving Diamond T trucks — particularly the prewar and 1950s models — are highly collectible today. Common projects include the 200-series light-duty trucks, the 300- and 400-series mediums, and the larger 600- through 900-series conventionals. Browse the Diamond T categories below for the parts we carry for these uniquely styled American trucks.