Detroit Series 60 12.7 Engine For Sale

The Detroit Diesel Series 60 debuted in 1987 as the first commercial diesel engine to run fully electronic controls, replacing the older mechanically governed Series 71 line. The 12.7-liter version came shortly after, built with a longer stroke than the original 11.1L, and quickly became a favorite in on-highway trucks, motorcoaches, and marine applications. Once the 11.1L was discontinued in 1998, the 12.7L took over as the standard motorcoach and mid-range on-highway engine in the Series 60 lineup, and it remained popular through the early 2000s, including use in Neoplan articulated buses.

The 12.7L was eventually phased out in 2007 as the larger-displac

ement 14.0L became the dominant Series 60 platform for heavy-haul applications. Even so, the 12.7L remains widely used today for rebuilds and replacements thanks to its proven reliability, straightforward electronic controls, and strong parts support.

Today, the Series 60 12.7 remains a popular engine for rebuilds and replacements in Freightliner and other on-highway trucks, motorcoaches, marine propulsion, industrial power generation, and fire and emergency vehicles.

Engine Specifications

Key Features

• Electronic unit injection with drive-by-wire control

• Turbocharged, air-to-air charge cooled induction

• Cast iron block with replaceable wet liners

• Proven DDEC electronic engine management

• Strong aftermarket parts availability

Common Applications

Long-haul and regional tractors, motorcoaches and transit buses, marine vessels, power generation units, and fire and emergency vehicles.

Reliability

Properly maintained Series 60 12.7 engines commonly run past 750,000 miles, with many reaching well over a million. Staying on top of oil changes, fuel filters, valve adjustments, and cooling system service is key to reaching that mileage. The turbocharger and injectors need periodic attention, but the durable cast iron block and wide parts availability keep long-term ownership costs manageable.

Why Buy a Detroit Series 60 12.7?

• Proven long-term reliability

• Strong, consistent power for its class

• Wide parts and service availability

• Lower operating costs than newer, more complex engines

Buy from HD Engines

HD Engines offers quality used, rebuilt, and remanufactured Detroit Series 60 12.7 engines for on-highway, marine, and industrial use. Every engine is inspected and backed by knowledgeable support. Contact us today, and we'll match your engine by ESN, model number, or application for a smooth installation.