The 6.7-liter Cummins diesel has been powering Ram trucks for nearly two decades. One common problem is hydraulic lifter failure, but what years does it affect?

lower intake temperatures help avoid problems such as pre-ignition or engine knock, which commonly occur when the air-fuel mixture ignites too soon from excessive heat. How The 6.7L Cummins Can ...

Case Study: Real-World Performance Gains Many truck owners have experienced noticeable performance gains after upgrading their 6.7 Cummins intake manifold. Here's a real-world example: Mike, a Ram ...

For decades, when someone mentioned a Cummins 6.7, you didn’t just assume it was a diesel, you knew it was. Cummins is synonymous with torquey workhorses that sipped fuel from the big green ...