The Panzerkampfwagen IV (Pz.Kpfw. IV), commonly known as the Panzer IV, was a medium tank developed in Nazi Germany in the late 1930s and used extensively during the Second World War. Its ordnance inventory designation was Sd.Kfz. 161.
Ausf. D this variant, totaling 248 vehicles, reintroduced the hull machine gun and changed the turrets internal gun mantlet to an external one.