GE Jenbacher engines type 2 and 3 in fuel class A and B - GE Jenbacher engines type 4 (Version A and B) and type 6 (up to Version E) in fuel class A and B - MWM – Natural Gas - MWM – Biogas

Caterpillar - Cummins QSK, QSV - MAN (all 2-stroke and 4-stroke marine diesel engines) - MTU - Perkins Serie 4000 - Waukesha - Wärtsilä