Since 2010, Diemax has focused on the development of a V12 lightweight diesel engine for the marine market. This development has resulted in a powerful diesel engine that is currently available in two variants: 520HP and 600HP.

Since 2008 Diemax has a 6-cylinder engine line.

Diemax has presented itself at various international fairs, including Mets (Marine Equipment Trade Show) 2016-2019.