The Detroit DD8 Engine: Fuel Efficient Versatility

Available in a variety of Freightliner products and applications, the Detroit® DD8™ offers a wide range of ratings to help you get the job done. With efficiency, reliability and exclusive technological advances that are synonymous with Detroit’s legendary heavy-duty engines, the DD8 is the choice that makes sense while making dollars for your business.    



Inline 6 Cylinder


470 cu in (7.7L)

Compression Ratio



260 -350 HP @ 2200 rpm


660-1050 lb-ft @1400 rpm


1437 lb (652kg)

Service Fill (Oil & Filter Change)

27 qt (25.5 L)

Horsepower & Torque Curve


DD8: Model Options

An efficient, durable and versatile performer, the DD8 is available with a wide range of power ratings and for an assortment of applications. Competent and reliable in nearly every conceivable medium-duty, vocational scenario, the DD8 is a perfect choice for the Freightliner work truck you depend on daily. Freightliner 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. To learn more about DD8-compatible Freightliner trucks, click on the following:


M2 106 Plus

Medium Duty | 66,000 lbs. GVWR | 200-360 HP | Up to 1150 lb-ft Torque

114SD Plus

Severe Duty | 92,000 lbs. GVWR | 260-525 HP | Up to 1850 lb-ft Torque

108SD Plus

Severe Duty | 69,000 lbs. GVWR | 200-380 HP | Up to 1250 lb-ft Torque

Demand Detroit
Engine Family Gen5 1366X470
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