T-20 armored tractor Komsomolets (Bronirovannyy gusenichnyy tyagach Komsomolets T-20), an armored continuous track tractor, the T-20 was a prime mover vehicle used by the Soviet Union during the Winter War and World War II.
The tractor was designed to tow light artillery pieces such as the 45mm anti-tank gun and the 120mm heavy mortar.
[2] Although the Komsomolets T-20 armored tractor was designed as a prime mover, some vehicles were used in combat during 1941.
In early 1944 they were fitted with hooks which enabled them to tow the 50 mm Pak 38 anti-tank gun.
The Germans also modified some captured examples by mounting a 3.7 cm Pak 36 anti-tank gun on top.