limber, officially L 2 H 43 and L 2 H 143) was a six-wheeled 6×4 German truck and artillery tractor produced between 1934 and 1941 and heavily used in World War II.

Its main purpose was to tow artillery, especially the 3.7 cm Pak 36 anti-tank gun (designated Kfz 69), and transport motorized infantry (designated Kfz 70).

This vehicle was extensively used on the Eastern Front, during the North African campaign and in France and Sicily.

Its fuel consumption was relatively high (24 Litres / 100 km on road) in comparison to the comparable Opel Blitz 1.5 t truck (16.5 liters / 100 km, produced 1938 - 1942).

A successful design, the Krupp-Protze was converted into several variants: Sometimes anti-tank (37 mm Pak 36) and anti-air (2 cm Flak) guns were mounted directly on the truck bed (Portée).