DUAP

DUAP AG is based in Herzogenbuchsee, Switzerland, and has specialised in fuel injection systems for large engines for more than 80 years. Its parts are designed, manufactured and tested in-house in Switzerland.

The DUAP Group consists of DUAP Switzerland in Herzogenbuchsee, DUAP USA in Miami and Alliance Diesel Refit in France. The French group company also services engines directly on ships and in power plants.

The company runs its own hardening shop, which also heat-treats steel parts for external customers, and has trained apprentices for over 40 years.