Atlantic Detroit Diesel-Allison, LLC (Atlantic DDA) is engaged in the sale and servicing of diesel and alternative fuel engines, transmissions and related components, parts and accessories, for equipment serving various On-Highway and Off-Highway markets. Those markets include medium- and heavy-duty trucks, buses and coaches, fire and emergency vehicles, power generation systems, marine propulsion and support equipment (commercial and pleasure-craft), and construction and industrial equipment.

As an authorized distributor for products and parts manufactured, sold and warranted by Detroit Diesel®, Allison Transmission®, MTU®, Carrier Transicold® and others, Atlantic DDA is able to provide the end-users of those leading brands with premier service, up-to-date technical support and genuine parts for the represented products used in their vehicles, vessels and equipment. With seven service locations in our area of operation, we serve a wide range of customers directly and indirectly through a network of authorized dealers.

Our customers include: trucking companies, municipalities, transit authorities, bus companies, owner operators, ferry and commercial vessel operators, pleasure-craft owners, financial institutions, hospitals, and many others.