Detroit DD8 Engine

The Detroit® DD8™ is built to drive commerce forward. With advanced variable cam phasing technology, it minimizes regens, while the Detroit Connect Virtual Technician® simplifies service decisions. Best-in-class maintenance intervals of up to 60,000 miles ensure continuous operations. Together, these features deliver substantial power, efficiency, and reliability.

The Detroit DD8 delivers when it counts.

Efficiency, Performance & Durability

 The DD8 is the most technologically advanced mid-range engine available in its market. Its features include:

• Proprietary variable cam-phasing technology optimizes efficient aftertreatment system performance by reducing or even eliminating regens. By maintaining the correct temperatures during low-speed operation, it minimizes the need for parked regens, keeping you on the road longer.
• A smart, fuel-efficient design that makes the most of every gallon and lightens the load on the aftertreatment system. 
• Its advanced common rail fuel system optimizes each injection event to minimize fuel consumption.
• A variable-speed fan and advanced cooling system providing shorter fan-on times for increased fuel efficiency.
• Simple, fixed-geometry, turbocharger for performance, efficiency and reliability.
• An optional high-performance integrated engine brake.
• A robust and sturdy rear gear train helps minimize noise, vibration and harshness (NVH).
• PTO Capability – both FEPTO and REPTO – for a variety of vocational work-truck applications.
• 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.

Detroit Connect Virtual Technician

When a critical fault occurs, Virtual Technician transmits data to our experts at the Detroit Customer Support Center for further analysis. Within minutes, fleets and owner-operators know the severity of the fault and when, where and how to best fix the issue. Here are some key benefits of using Virtual Technician:

• Better insight into performance.
• Information delivered quickly to decision makers.
• Reduced time spent on diagnostics keeps trucks on the job.

Keep running

With the longest service intervals in its class at up to 60,000 miles, along with an easily serviceable design, the Detroit DD8 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.