Diesel engine supplier since 1922. We sell various marine, industrial and fire fighting engines. We offer high quality products from well known brands like Doosan, Lister Petter, Mecc Alte and Raywin. From diesel engines to specific parts, De Maas BV provides. Our service is reliable and consistent with our technical experts always giving you the help you need. All this comes back in our slogan. RELIABLE, POWER, ENERGY AND MORE!