Representing the most respected brands in the industry


Representing the most respected brands in the industry


NEDDA represents distribution for the Northeast for Detroit Diesel, Allison and MTU.

Our three strategic locations in MA, RI and ME allow us to serve our customers quickly and efficiently. Supporting our extensive inventory of the world’s best engines, transmissions, and replacement parts, our experienced technicians are dedicated to providing our customers with the dependable maintenance, installation and emergency services they expect. NEDDA is renowned for it’s:

Factory Trained Technicians      30 + Service Bays
Fleet of Field Service Vehicles       Extensive Parts Inventory


NEDDA provides power solutions for a wide variety of industries and customer needs from the most advanced engines, transmissions, emissions/filtration products on the market to temperature management systems. We serve the following markets:

  • Heavy & Medium Duty On-Highway Trucks
  • Motor Coach
  • Off-Highway Trucks & Equipment
  • Emergency Vehicles
  • Rail
  • School Bus
  • Transit
  • Pleasure & Commercial Marine

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New England Detroit Diesel Allison provides distribution for the most respected brands of engines, transmissions, heating and cooling systems, emissions products, marine power systems and transport refrigeration products. Learn more about our products and services.