Mercedes-Benz UNIMOG Overview (1953-1962) © …
The third Mercedes-Benz UNIMOG body style of the 1953-1962 period was the Type U404. It was introduced in 1956, and production ran until 1980. Also known as the UNIMOG-S, it used a 24 volt electric system and had a 2.2 liter (134 cubic inch) 82 hp, 6-cylinder gasoline engine (also found in the Mercedes-Benz Type 220S Ponton sedan).