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.

Discover the Detroit Advantage Discover 80 Years of Legendary Performance


Design your Freightliner new Cascadia® with superior engine, transmission and powertrain components, only from Detroit.

Build It Better


Learn how to optimize your Cascadia or new Cascadia's performance with Driver Training. Simply enter your VIN and you will have access to a wide variety of reference videos and support materials specific to the components of your vehicle.

View Driver Training Materials


Introducing the new Detroit™ DD8™ engine is the latest Detroit offering to serve the mid-range market, providing vocational drivers with best-in-class maintenance intervals that keep your business running smoothly.

Discover the dd8

New Detroit Connect Portal Now Available 

Active Detroit Connect™ subscribers can now log in to the portal to access vehicle data for their Detroit-powered Freightliner and Western Star fleets. Now, users will have direct access to fault events and resolution recommendations delivered by Virtual Technician, DDEC reports, and more.

Sign up to access portal

DT12™ Intelligent Powertrain Management (IPM) Training Videos

Detroit has just created a series of DT12 automated manual transmission training videos, focusing on Intelligent Powertrain Management (IPM) for Freightliner. The brand new video series trains drivers on what to expect with IPM, including how Predictive Acceleration, Crest Coast, and Dip Coast modes function.

View IPM Training Videos

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. If you have driven over a million miles, become a member of our Million Mile Club. Click below to share your story!

Learn About Road Champions

Detroit Assurance 4.0 Augmented Reality Experience

See the Detroit Assurance 4.0 Suite of Safety Systems in augmented reality. 

Experience Safety

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