The MaxxForce 12.4D is a heavy duty I-6 diesel that really brings the power. Churning out up to 550 HP and 1800 lb-ft of torque, it’s designed to drive medium-to-heavy wheeled military vehicles and medium tracked military vehicles.

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MaxxForce 12.4D

As the worldwide leader in mid range diesel engines, Navistar is especially well prepared to meet the rigorous demands of military customers. Our manufacturing scope, design expertise and industry knowledge allow us to customize our MaxxForce D engines for performance, for specific applications and fuels, and for harsh operational conditions such as temperature and altitude. Whatever you need to complete the mission, we can create a MaxxForce D engine to match.

Our commercial experience also makes us faster. Whether we’re modifying an off-the-shelf engine or designing for a new application, our experienced in-house engineers and trusted supplier network enable us to cut the time between concept and delivery to an absolute minimum. MaxxForce D engines are also available as part of a fully integrated vehicle power pack that include engine accessories, electrical power generation systems, air management systems, and cooling systems. We test every component to meet our high standards and leverage our commercial supply base to ensure that you get the best possible price.