A true workhorse with best-in-class low-end torque, the Cummins 6.7L Turbo Diesel comes standard on all Ram 3500s. (In fact, it’s the only truck in its class to offer a diesel engine standard.) A truly peerless power train, the Cummins was a key reason that the Ram HD was named Motor Trend’s 2010 Truck of the Year.
But did you know it’s also one of the cleanest, quietest, most eco-friendly motors available? To put it in perspective, the Cummins Turbo Diesel met 2010 emission requirements way back in 2007 — leading the way for the innovations achieved in this year’s incarnation. Cummins used a High Pressure Common Rail fuel system and cooled exhaust gas recirculation to lower emissions. And they didn’t forget noise pollution in the process: the NVH (Noise, Vibration and Harshness) dampening features in the 2010 model have led to a 50 percent quieter engine and all-around reduction in cabin noise levels. Wouldn’t you know it: The Ram Heavy Duty is the strong, silent type.