Mike Day has built a lot of great projects such as his recently finished RWD Golf with a BMW V8. One of his other projects is this 1963 Mercedes Unimog 404 completed several years ago. The Unimog came from the factory with a 2.2 L M180 inline-six and six-speed manual transmission. Mike swapped the inline-six for a turbo diesel OM617 inline-five from a mid-80’s Mercedes 300D. He also converted to power steering using a Chevy Astro Van steering box, power brakes using E28 M5 brakes, and installed a custom bed with three tailgates. Listen as Mike explains how he built this unique creation.
Source: ECS Tuning via Motor1





I like the truck. You have done a geat job.
I have a unimog 421 to which I want to install a om617 engine.
Is this possible. If yes then can you guide me. I thought that there would be less space left for radiator.etc.
My contact number is 00923004240102.
Zahid
Thanks.
Hi there.
I just saw your post from 2020.
Did you fiddle with your 421 and Om617?
How did it end up?
I have a 404 that I have an om617 engine for it. Who make a bellhousing adapter that rotates the engine? I’m new to unimogs trying to get everything for it so I can put it back on the road. Thanks for any help