Pride, professionalism, and commitment
Atlantic Detroit Diesel-Allison is an authorized, value-added distributor of premium-branded diesel and alternative fuel engines, transmissions, and related products, systems, and components used in vehicles and power systems. ADDA and its predecessors have been in operation since the mid-1950s.
Atlantic Detroit Diesel-Allison was acquired by Stewart & Stevenson LLC from Detroit Diesel Corporation, a subsidiary of Daimler Trucks North America, in August of 2013 but continued to use Atlantic Detroit Diesel-Allison and Atlantic Power Systems as trade names. Stewart & Stevenson LLC was acquired by Kirby Corporation in September 2017.
Primary end markets include on-highway vehicles (medium- and heavy-duty trucks, coaches, transit buses, school buses, fire, emergency, and other specialty commercial vehicles) and off-highway equipment (power generation, commercial marine, construction, and industrial applications).
Atlantic Detroit Diesel-Allison and its predecessors have been doing business for over 65 years!