Powering the Northeast

Factory-authorized engines, parts and service you can count on

The core capability of Atlantic Detroit Diesel-Allison (ADDA) is the sale and expert service of diesel and alternative-fuel engines, transmissions, power-generation systems, and a wide range of related products, components, parts and accessories.

It is this range of solutions that keep our customers’ vehicles and other critical equipment running at maximum efficiency.

Atlantic Detroit Diesel-Allison represents the most respected brands in the business — names like: Detroit, mtu, Mercedes-Benz, Allison Transmission, Volvo Penta, and more. ADDA also provides comprehensive service for a variety of equipment in both on- and off-highway markets: medium- and heavy-duty trucks, buses and coaches; fire and emergency vehicles; power-generation systems; marine propulsion and support equipment for both commercial vessels and pleasure craft; and construction and industrial machinery.

The world depends on the equipment that depends on us.

With five locations throughout New Jersey, New York, Massachusetts and Connecticut, ADDA serves customers in some of the most demanding applications in both government and private-industry sectors. You’ll find our products hard at work in trucks, buses, ferry and commercial-marine applications, and pleasure craft, as well as in governmental, financial, and medical environments where ongoing power supply is critical.

On-Highway

ADDA is your one-stop source for the sales and service of diesel engines, transmissions, turbochargers, fuel injectors, and drive-line components for medium- and heavy-duty trucks, buses, coaches, and fire and emergency vehicles. Read more …

Marine

As a factory-authorized distributor and service center for mtu and Volvo-Penta marine engines, ADDA has the solution to power or repower commercial or recreational vessels. Read more …

Industrial

ADDA offers efficient industrial engines that perform in demanding environments from mtu, Mercedes-Benz, and Volvo Penta for a wide range of products, from tub grinders and rock crushers to airport ground-support units and more. Read more …

Power Generation

ADDA offers sales and service for a range of standby gas and diesel power systems from mtu to bring you a constant supply of reliable power in the event of a mains or power-grid failure. Read more …

Parts

With five locations throughout New Jersey, New York, Massachusetts and Connecticut, Atlantic Detroit Diesel-Allison has all the parts you need on hand, including Detroit Genuine Maintenance Parts and genuine reliabilt® parts. Read more …

Service

ADDA provides comprehensive service and support for a variety of equipment in both on- and off-highway markets: medium- and heavy-duty trucks, buses, and coaches; fire and emergency vehicles; power-generation systems; fire pumps; marine propulsion; and construction and industrial machinery. Read more …

Our Valued Partners