The Voroshilovets heavy artillery tractor was also based on the T-24's suspension, using the same but detuned Model V-2 diesel engine as the BT-7M and T-34 tanks. About 230 were built at KhPZ from 1939, and after the German invasion of 1941 production was shifted to the Stalingrad Tractor Factory until August 1942. Designer M Bergman
