Detroit DT12 Series Transmissions
Smooth performance, built to last
For Fleets operating across both the open road and rugged jobsites, the Detroit DT12 Series delivers unmatched performance, durability and ease of operation. Whether you choose the On-Highway or Vocational version, you get a 12-speed automated manual transmission engineered for efficiency and reliability.
On-Highway Series: Efficiency where it matters
Designed for smooth, fuel-efficient shifting and maximum uptime in long-haul applications.
Vocational Series: Built tough for extreme conditions
Engineered for the toughest jobs like construction, refuse and utility work. With rugged components and smart features tailored to demanding environments.
Both DT12 variants are part of the fully integrated Detroit Powertrain, delivering intelligent performance when paired with Detroit engines, axles and technology.
Explore full DT12 specs and features on the Demand Detroit website.