Extreme duty and heavy hauling for your biggest jobs

The Detroit® DD16® engine is the biggest, toughest, most powerful engine Detroit has ever produced. With a wide, flat torque curve, and delivering up to 2050 lb/ft and 600 HP, it tackles your hardest jobs while performing with the fuel efficiency and reliability you’ve come to count on from Detroit. 


1850-2050 lb-ft

Torque Range


Horsepower Range

15.6 L


Pulling huge loads up hills is what the DD16 engine was born to do. Its 15.6-liter displacement produces up to 600 horsepower, while providing amazing torque curve to get the heaviest loads moving.

More Specs

Perform when it counts

Stay productive and profitable with:

  • 15.6L displacement — the largest on-highway engine built by Detroit.
  • Turbo compounding to recover heat from the exhaust, transforming lost potential into bonus power.
  • Wide, flat torque curve pulls strong all the way down below 1000 RPM.
  • Next Generation Amplified Common Rail System (ACRS) to optimize combustion control.
  • Integrated Jacobs® brake that offers three levels of quieter engine braking for enhanced downhill control and shorter stopping distances, all with reduced wear on the service brakes, tires and other components.
  • Detroit provides a wide range of new vehicle engines compliant with EPA, CARB emissions, GHG, and OBD requirements. Please consult your local dealer to ensure the selection of a product that meets your specific needs.

Model Options

Designed for construction, distribution, dump, fire and emergency, government, motor home, oil and gas, refuse and regional.

Western Star
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Detroit Connect Virtual Technician® remote diagnostic system

If maintenance issues come up while on the road, you can count on Detroit Connect Virtual Technician. With Virtual Technician, you are notified within minutes when your vehicles experience a fault event, the severity of the fault and when, where and how to best fix the issue causing the fault so you can make informed service decisions.

Keep running

With the longest service intervals in its class and an easily serviceable design, the Detroit DD16 lowers your cost of ownership by decreasing your time in the shop. With oil and fuel filters positioned above the frame rails, you'll be back in the driver's seat fast.

Connect Today

Learn more by visiting your nearest Freightliner or Western Star dealership.

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