The International Navistar DT466 turbodiesel engine weighs 1,425 pounds, not including the weight of oil or other fluids. This six-cylinder engine displaces 7.6 liters and can produce up to 300 peak horsepower and up to 860 foot-pounds of torque. The DT466 is still in production as of September 2015, though it is referred to as the MaxxForce DT by the manufacturer.
The DT466 was originally released in 1984 as the International Harvester DT466. All versions of the DT466 and MaxxForce DT use a cast-iron, wet sleeve-engine block design with the six cylinders arranged in an in-line configuration. First-generation DT466 engines used a mechanical fuel injection pump until 1994, when a hydraulic/electronic unit injector first became available. HEUI injectors are standard on DT466 engines produced from 1996 to 2004, after which the fuel system uses a Generation 2 HEUI unit.
Turbocharging to improve efficiency and power is a standard feature of the DT466 engine, present since its inception. The current-generation MaxxForce DT iteration of the engine uses a dual-sequential turbocharger system first added to the engine in 2010. These dual turbochargers replaced the older single variable-vane unit as part of modifications to the DT466 design to help meet new emissions standards that came into force in 2010.