The first-generation 6.7 Cummins, producing 350 horsepower and 650 lb-ft of torque and still one of the largest-displacement engines in production today, replaced the 325-horsepower 5.9 Cummins I6 ...

All those features have made the 6.7 an emblem of diesel reliability. "My 2011 work truck has 313,000 miles, and it's been a great truck so far," said u/ungerz28 on the r/Diesel subreddit.

Sure, reports are rampant that production of the much-beloved old 5.7, 6.4, and supercharged 6.2-liter HEMI V8s is set to re-commence sometime late this summer.