Detroit Starts Production on Integrated Powertrain
Detroit Diesel began production of the components making up the integrated Detroit Powertrain, the company announced at the Mid-America Trucking Show.

Detroits complete integrated powertrain. Image via Detroit

Detroit Diesel began production of the components making up the integrated Detroit Powertrain, the company announced at the Mid-America Trucking Show.
The integrated powertrain will include the Detroit DD15 engine, DT12 automated manual direct drive transmission and Detroit front and rear axles. Every component was designed to work together in an integrated system, says Detroit.
The integrated powertrain is available on the Freightliner Cascadia Evolution and the Western Star 5700XE.
The Detroit DD15 Engine is rated at 400 horsepower and 1,750 lb.-ft. of torque and was downsped to shift the usable torque range to lower engine speeds. This reduces friction losses, enhances fuel consumption and can improve reliability.
The DT12 automated manual transmission comes with Intelligent Powertrain Management which uses pre-loaded terrain maps and GPS to read the route ahead and adjust the shift points to improve function and efficiency.
The front and rear axles are offered in a 6x2 configuration with a 2.28 ratio that is designed to work with the downsped engine rating. The 6x2 Detroit axle configuration incorporates a non-driven tag axle on the tandem, reducing total weight by almost 400 pounds while a new 2.41 ratio in its 6x4 axle configuration is also available for applications requiring additional traction.
For more information on the integrated powertrain, click here.
More Equipment
Behind the Wheel of the New Mack Anthem [Video]
HDT takes the new Mack Anthem around Mack’s Pennsylvania test track to see how its driver-focused design, technology, visibility and handling perform from behind the wheel.
Read More →
DTNA Plans New U.S. Truck Plant as Manufacturing Footprint Shifts
Daimler Truck North America is evaluating sites for a new assembly plant expected to open in 2029 while winding down operations at its longtime Portland manufacturing facility.
Read More →
Great Dane Flatbed Trailer Offers Light Weight and Strength
Freedom Ultra is designed for a wide range of open-deck applications, including building materials, lumber, machinery, steel products, industrial freight, and coil hauling.
Read More →
What It's Like Inside this Custom 2025 Peterbilt 589?
Take a driver's-eye tour of this customized 2025 Peterbilt 589 in this video, as longtime driver Ingrid Brown explains its features, compares it to previous models, and shares plenty of personality along the way.
Read More →Drivers Put Western Star Trucks to the Test at Star Nation Experience
Watch to get an inside look at the Western Star trucks, technology, and community behind the Star Nation Experience 2026!
Read More →
Atlas Expands Kodiak Driverless Truck Fleet in Permian Basin
Atlas Energy Solutions is expanding autonomous frac sand hauling in the Permian Basin with a second load-out location and plans for 100 driverless trucks by mid-2027.
Read More →
Putting Mack’s Command Steer to the Test
A test drive of Mack’s Command Steer active steering system evaluates how it can make truck driving easier and less tiring.
Read More →
Mack, Volvo Expand DEF Derate Software Updates
The updated software gives Mack and Volvo truck owners more time to address DEF-related issues before the engine derates or the vehicle goes into reduced-speed inducement, following new EPA guidance.
Read More →
Rush, MCT Team Up to Grow Refrigeration Service Network
The joint venture will operate MCT's network of Carrier Transicold dealerships and mobile service locations, with the companies promising greater service capacity and uptime for refrigerated fleets.
Read More →
Cummins Adjusts 2027 Engine Rollout After EPA Proposal
The engine maker will gradually introduce its new Model Year 2027 diesel engines while continuing to offer current models during the transition, citing the EPA's proposed emissions rule changes.
Read More →
