Detroit Engines—DD13, DD15, and DD16—set the standard for modern heavy-duty performance. Engineered for efficiency, power, and reliability, they offer optimized configurations to suit varied hauling needs. Integrated into Freightliner and Western Star platforms, they are backed by Demand Detroit® quality, support, and parts availability. Contact Tracey Road Equipment today to choose the right Detroit engine for your fleet and drive efficiency forward.
Detroit Engines
Building quality into every engine that bears the Detroit name.
Unlock optimized performance, fuel efficiency, and reliability with Detroit Engines—the latest generation of heavy-duty diesel powerplants engineered by Detroit, a trusted name in the trucking industry. From the dynamic DD13 and DD15 to the powerhouse DD16, these engines deliver tailored solutions across on-highway and vocational applications within the Demand Detroit® ecosystem.
Choose your model
DD13
| Horsepower | 370-525 hp |
| Torque (lb-ft) | 1,250-1,850 |
| Best Application | Regional, Mixed-Duty, Vocational |
| DD13 Spec Sheet | |
DD15
| Horsepower | 425-505 hp |
| Torque (lb-ft) | 1,550-1,850 |
| Best Application | Long Haul, Heavy-Duty |
| DD15 Spec Sheet | |
DD16
| Horsepower | Up to 600 hp |
| Torque (lb-ft) | Up to 2,050 |
| Best Application | Maximum Duty, Towing/Hauling |
| DD16 Spec Sheet | |
Why Choose Detroit Engines?
Engineered for Efficiency & Durability
The DD13 and DD15 engines feature swirl-piston designs and advanced combustion, delivering up to 3% better fuel economy than previous models.Power Range for Every Need
DD13®: Power output between 370–525 HP, torque up to 1,850 lb‑ft—ideal for regional line-haul and versatile vocational work.
DD15®: Delivers 425–505 HP and 1,550–1,850 lb‑ft—built for heavy-duty applications and consistent long-haul performance.
DD16®: Detroit’s most powerful offering, producing up to 600 HP and 2,050 lb‑ft—designed for extreme-duty operations.
Optimized for Truck Performance
Targeted displacement and compression ratios enhance torque delivery and fuel efficiency. For example, the DD15 features a 14.8L inline-6 configuration and a 21:1 compression ratio.Built for Tough Applications
Detroit engines are engineered for reliability and long service life across sectors—trucking, construction, refuse, emergency services, and more.
Detroit Engine Comparison
| Engine | Horsepower | Torque | Best Application |
|---|---|---|---|
| DD13 | 370–525 HP | 1,250–1,850 lb‑ft | Regional haul, mixed-duty, vocational use |
| DD15 | 425–505 HP | 1,550–1,850 lb‑ft | Long-haul, heavy-duty, high-efficiency |
| DD16 | Up to 600 HP | Up to 2,050 lb‑ft | Maximum duty, heaviest towing & hauling |
The DD13 brings advanced combustion technology with swirl-piston design and new turbochargers. It offers fuel efficiency and reliability with power output between 370 – 525 HP and torque up to 1,850 lb‑ft.
While both are efficient, the DD15 is geared toward heavy-duty use. It delivers 425–505 HP and 1,550–1,850 lb‑ft torque, making it ideal for long haul and heavy-load scenarios.
The DD16 is Detroit’s highest capacity engine—boasting up to 600 HP and 2,050 lb‑ft—for extreme-duty tasks like heavy towing and laden freight hauling.
Yes—all Detroit engine models meet current EPA and CARB regulations and are part of the Demand Detroit® integrated engine ecosystem.
Select based on your primary operation—DD13 for mixed/regional use, DD15 for long-haul and heavier demands, and DD16 for maximum output applications.