About Diemmax
2005 Diemmax has started building 6 cylinder marine engines and converting V12 engines for marine use. Customers in the 520-600 HP segment were designated to maintenance-sensitive V8 petrol engines or heavy diesels. Diving into this niche turned out to be a hit. Demand for the V12 was enormous.
The interest in the segment was so great that we in 2015 decided to develop an entirely new engine. A compact and aluminum V12 diesel 100% developed for the maritime sector.
After more than 4 years of building and development, the first test runs are made in December 2020 and a prototype has now been run on the test bench for hundreds of hours.
Since 2021 our range has been expanded with a new twin turbo 6 cylinder engine.
Our Mission
We want to be the marine engine manufacturer who continues to improve through innovation and technology.
Our Vision
In the coming years, we will set a new standard in marine engine power for the customer and let them experience comfort.
Our Story
Over the Years
2001
- Started 2001 as a boat maintenance service and marinizing different types of diesel engines
2008
- Started remanufacturing and marinizing diesel engines
2012
- Change focus to develop a new engine for a gap in the market
2015
- Presenting the prototype V12 on exhibition Boat in Düsseldorf
2017
- Presenting preproduction model V12 on METSTRADE
2018
- Starting development of electronics to improve our customer expierience
2019
- Switch from machined parts to casted parts
Currently
- Final Phase testing the V12
2021
- Start serial production V12
Premium Engine line
Diemmax Range Goals
From mid-2021 we have a complete range of marine engines from 250 till 600 hp. In the future we will expand our program until we have a complete range of engines.
Interested in our products?
plan an online informative meeting with one of our certified suppliers:
12 cylinder
Aluminum cylinder block
Titanium, carbon fiber
Lightweight
Compact design
520 till 600 Hp (382 till 440 kW)
6 cylinder
Aluminum cylinder block
Titanium, carbon fiber
Lightweight
Compact design
250 till 350 Hp (184 till 257 kW)