The 6.7L Cummins engine has been around for almost two decades. Here's how much horsepower the stock versions of the 6.7 have ...

For Cummins truck owners, engine dependability and performance are crucial. The EGR system along with other emissions control maintenance systems comes with performance and maintenance problems.

It was at that point in time that Cummins ushered in the 6.7 as the replacement for the 5.9 Cummins ... technology and advancements in the engine's fuel and air delivery systems.