Detroit Diesel Remanufactured Engines
DD15, DD13, Series 60 & Heavy-Duty Diesels
US Engine Production offers remanufactured Detroit Diesel engines for Class 8 trucks and heavy equipment. Our inventory includes the modern DD15 and DD13 series, the legendary Series 60, and classic two-stroke diesels, all rebuilt to factory specifications.
Detroit Diesel Engine Specifications
| Engine | Displacement | Config | Horsepower | Torque | Applications |
|---|---|---|---|---|---|
| DD15 | 14.8L | I6 | 400-505 hp | 1,550-1,850 lb-ft | Freightliner Cascadia, Western Star |
| DD13 | 12.8L | I6 | 350-470 hp | 1,250-1,700 lb-ft | Freightliner Cascadia, M2 |
| Series 60 14.0L | 14.0L | I6 | 455-575 hp | 1,550-1,850 lb-ft | Freightliner, Sterling, Western Star |
| Series 60 12.7L | 12.7L | I6 | 370-500 hp | 1,350-1,650 lb-ft | Freightliner, Sterling, Western Star |
| 8V92 | 12.1L | V8 | 350-475 hp | 1,060-1,300 lb-ft | Fire trucks, marine, military |
About Detroit Diesel Engines
Detroit Diesel, now part of Daimler Trucks, has been producing diesel engines since 1938. The Series 60, introduced in 1987, revolutionized the trucking industry with electronic controls and became one of the best-selling heavy-duty diesels ever. The modern DD platform continues this legacy with the fuel-efficient DD15 and DD13 engines.
Detroit Diesel Corporation was founded in 1938 as a division of General Motors, initially producing the famous two-stroke diesel engines (Series 71, 8V92, 6V92) that powered everything from city buses to military vehicles. The company's most significant achievement came in 1987 with the Series 60 — the first fully electronic heavy-duty diesel engine. The Series 60 12.7L and later 14.0L variants dominated the trucking industry for two decades, with the 12.7L becoming the best-selling heavy-duty diesel engine in North American history. After Daimler AG acquired Detroit Diesel in 2000, the company developed the DD platform: the DD15 (14.8L) for long-haul applications and the DD13 (12.8L) for regional and vocational use. These engines feature asymmetric turbocharging, amplified common rail fuel injection, and integrated aftertreatment systems. The DD15 is the standard engine in the Freightliner Cascadia, the best-selling Class 8 truck in North America. Detroit's two-stroke diesels, particularly the 8V92 and 6V71, remain popular in marine, industrial, and military applications.
Detroit Diesel Engine Buying Guide
When purchasing a remanufactured Detroit Diesel engine, the engine serial number is your primary identifier. For the Series 60, the serial number prefix indicates the displacement (06R for 12.7L, 06R for 14.0L — the build date determines which). For DD15 engines, the serial number includes the emissions certification year, which is critical for compliance. Detroit engines are closely tied to Freightliner trucks (both owned by Daimler), so the DD15 and DD13 are most commonly found in Cascadia, Columbia, and Western Star models. For Series 60 applications, these engines were used across many truck brands. Always verify the horsepower rating and emissions certification level when ordering — a DD15 rated at 400 hp has different internal components than one rated at 505 hp.