
In 2008, our one-millionth Series 60 rolled off the line—21 years after we debuted its breakthrough design. Our signature engine, the Series 60, is the perfect balance of power and fuel economy for heavy-duty applications.

The MBE 4000—a reliable, in-line, six-cylinder, heavy-duty engine with powerful acceleration (and braking power to match). Lightweight and durable, it’s designed for high torque at low RPMs and delivering best-in-class low-end torque for less engine abuse, increased reliability and better fuel economy.

With stops and starts, a mix of city and highway miles, and no two days exactly alike, the all-around powerful and dependable medium-duty MBE 900 is the best engine for fire, emergency and Motorhome applications.