The International Harvester K-Series was a family of trucks that debuted for the 1941 model year. The K-Series was offered in standard cab, cab over engine, and woody wagon body styles, and was powered by International Harvester's 'Green Diamond' line of inline six engines. These trucks were available in a variety of Gross Vehicle Weight Ratings, with the larger variants designated by a larger number following the 'K' (K-12, K-14, etc). Production of the K-Series was disrupted by WW2 in 1942, resuming for the 1946 model year. The International Harvester K-Series was built until 1946 and replaced by the International Harvester KB-Series.