EnginesМ-17ТМ-17ТМ-17ТLayoutVCoolingLiquidFuelPetrolVehicles 6193119321933193419351936193719381939194019411942194319441945BT-7A133≈ Jul 1939 – Aug 1939≈ Sep 1939 – Nov 1941Nov 1939 – Mar 1940BT-7 Model 1935 (line)BT-7 Model 1937 (line)BT-7M (M-17)72BT-7RT Model 1935BT-7RT Model 1937