Demand a Superior Powertrain. Demand Detroit.

Detroit offers a complete line of heavy-duty diesel engines, axles, transmissions, safety systems and connected vehicle services for the commercial transportation industry in both the on-highway and vocational markets.

Demand Detroit Inside

Introducing the all new DD5™

The all new Detroit™ DD5™ engine provides short-haul pickup and delivery operators best-in-class maintenance intervals of up to 45,000 miles, keeping you working longer.

Discover the dd5

DT12™ Training Videos

Detroit provides a series of DT12 automated manual transmission training videos for both Freightliner and Western Star. The detailed video series highlights how various DT12 features function in both the Western Star 5700XE and Freightliner Cascadia models. View these training videos to learn more about the DT12.

View DT12 Freightliner Training Videos View DT12 Western Star Training Videos

GHG17 vs GHG14 Engine Fuel Efficiency & DEF Usage Calculator

Reducing CO2 emissions and meeting 2017 Greenhouse Gas (GHG17) requirements means better fuel economy. Compare how our GHG17 Compliant Detroit engines stack up against GHG14. Our GHG17 engines provide better fuel economy while using a slightly higher amount of Diesel Exhaust Fluid (DEF). See for yourself how this will affect your operating costs.

View Calculator

Assurance 4.0 Training Videos

The Detroit Assurance™ suite of safety systems improves safety for truck drivers and everyone else on the highways, helping to mitigate the likelihood and severity of collisions. Review key Assurance 4.0 features here.

View Detroit Assurance 4.0 Training Videos

Detroit Road Champions

Drivers share their stories about driving their Detroit products. From engines and transmissions to maintenance tips, drivers share the experiences they’ve had along the way, and some drivers have driven over a million miles and have become members of our Million Mile Club.  If you have a story you would like to share, click below!

Learn About Road Champions

Detroit Connect Portal

The Detroit™ Connect portal is easy-to-use, one-stop-shop for all vehicle performance data gathered, transmitted and analyzed by Detroit Connect.  The portal gives you access to insights delivered by  Detroit Connect Virtual Technician℠. The Detroit Connect portal will also give you access to new features, such as Remote Updates, and Analytics, available late 2017.

Detroit connect portal login


DDCSN serves as both a public customer website and secure service portal to access DETROIT branded product service and parts information, tools, training, and more. Here you can access a wide range of product literature such as operator mauals, warranty booklets, and even service bulletins. You can also find parts catalogs, sales and marketing programs, webinars, and much more.


DTNA Connect Portal

DTNA Connect is the starting point for working with all brands and franchises that fall under the Daimler Trucks North America umbrella: Detroit, Thomas Built Buses, SelecTrucks, Sterling, Freightliner, and Western Star. Here, you can access the full spectrum of online applications, resources and tools you need. Whether you use DTNA online resources to complete repairs, purchase parts, submit warranty claims, spec new vehicles or track the status of your truck orders, DTNAConnect streamlines the tasks and activities that are part of your daily work routine.

DTNA Connect Portal Login