The DD15® builds upon the Detroit heavy-duty engine legacy to bring efficiency and performance to the next level. Offering the best of the best in diesel engine technology and engineering, the DD15 provides unmatched reliability for your trucks.
In addition to meeting GHG 2021 standards, the engine touts impressive power ratings, an innovative aftertreatment system and other key features to increase efficiency, durability and performance. Designed with enhanced downspeeding for better fuel economy and a swirl piston design for maximum combustion, the DD15 is up to three percent more fuel efficient than our previous model.Brochures and Videos Maintenance Intervals and Warranties
The DD15 engine has been significantly redesigned with innovative new features, building on the legacy of the most popular Class 8 diesel engine in North America.More Specs
The best 6-cylinder diesel engine available in the heavy-duty commercial vehicle market just got even better. The DD15 builds upon proven Detroit® technology to offer industry-leading efficiency, performance and durability. Key design features include:
Designed for a range of on-highway and vocational applications.
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.
With the longest service intervals in its class and an easily serviceable design, the Detroit DD15 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.
Sharing common service operations and parts with the DD13 and DD16 ensures that trained technicians are ready to serve you and your DD15 at any of our 800+ authorized Detroit locations across the highways and back roads of North America.
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