The offset frame with welded tubular cross members forms the basis for the unrelenting off-road capability of the Unimog U 4000/U 5000. It ensures the required stability on the road while simultaneously ensuring torsional flexibility off-road. This is achieved by three-point bearings for the cab, engine and transmission as well as defined interfaces for attachments and bodies. This makes articulations of even 30° possible.

Waterways and flooded areas are no obstacle for the Unimog. Thanks to the torque tube technology, air intake pipe at cab roof level and water-proofed major assemblies, it already has a fording depth of 80 cm as standard. With the optional fording capability system, you can also pass through water depths of up to 1.20 m effortlessly. Safe and dry, without damage from the penetration of water or fine sand. Special sealing measures protect all the important components from penetration by water, moisture and dirt.