In 1934 the production started. Out of approximately 350 ordered, only 151 were built until the outbreak of World War II. Approximately 108 were sold to the artillery units, where the C7P was used as an artillery tractor in the regiments of heaviest artillery, mainly for towing of heavy 220 mm wz.32 Škoda mortars. An additional 18 tractors were attached to various tank units, mostly the Polish 10th Motorized Cavalry Brigade for towing of immobilized tanks and for transport of tanks to the battlefield on specially designed towing platforms. Finally, two tractors were delivered to the engineering units for road maintenance and destruction of railways in case of a war. Until 1942 an additional 52 were to be delivered to various communal services, where they were to be used as snowplows to keep the roads in good condition in case of a war. During the Polish Defensive War of 1939 all C7Ps were used in active service. Most were captured by the Germans and were used as towing machines and snowplows at least until 1941. No example of the C7P survives today. However, a single C7P hull was recovered near Volgograd a few years ago. This hull was restored with a BT-5 or BT-7 turret and now looks like a T-26 tank. It is now on display at the Victory Park, Poklonnaya Gora in Moscow.
