The 2021 PACCAR MX Engines Deliver New Levels of Performance
Engines are more than a tool to move your trucks forward — they’re the beating heart. No matter what the conditions, these engines will get you to your destination with power to spare. Every PACCAR Engine is meticulously designed for maximum power, performance, and efficiency. The PACCAR MX Engine boasts a B10 design life of one million miles in linehaul applications. This means 90 percent of PACCAR MX Engines will log up to one million miles without a major overhaul, almost double the life of comparable engines. The PACCAR MX Engine’s B10 design life stands as the pinnacle of our promise to you – a lifetime of unparalleled durability.