Detroit DD15^® Engine

Six cylinders of industry-leading power

The DD15^® engine 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, this next generation of the DD15 provides unmatched reliability for your trucks.

The DD15 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 3% more fuel efficient than our previous model.

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.

TAKING THE DD15 REPUTATION TO NEW HEIGHTS

The best 6-cylinder diesel engine available in the heavy-duty commercial truck market just got even better. The DD15 builds upon proven Detroit^® technology to offer industry-leading efficiency, performance and durability. Key design features include:

• Better combustion for better fuel economy
  • Ultra-high compression ratios paired with a new swirl piston design create better combustion—and up to 3% better fuel economy. Now more than ever, the DD15 has continued to prove itself as the industry leader, and one of the most efficient 6-cylinder diesel engines for sale in the market.
• Versatility to be used in a wide range of applications
  • New power ratings and greater application coverage make this diesel engine powerful and durable - no matter what job it needs to do.
• Enough power to get payloads moving quickly
  • A Ball Bearing Simple Geometry Turbo allows peak power and torque to be reached faster, which gets payloads moving without compromising efficiency.
• Shorten regen cycles with new aftertreatment system
  • The innovative Thermocoasting feature prevents aftertreatment system cool down during coasting and shortens regen cycles. This feature is one more way Detroit has continued to develop cutting-edge innovation on diesel particulate filters and aftertreatment systems, with the goal of decreasing potential ATS problems and increasing uptime.
• Greater reliability than ever before
  • The DD15 engine offers less complexity and more durability in many of its key components to achieve an even higher standard. The DD15 is already one of the most reliable diesel engines ever made, this generation builds upon that legacy with expertly engineered improvements in engine technology.
• Longer maintenance intervals
  • A new aftertreatment system is able to do more with less space, increasing ATS maintenance intervals.
• Detroit’s trusted service and technology
  • Detroit’s #1 rated service network, along with the Detroit Connect Virtual Technician^® remote diagnostic system, helps maximize uptime.