If you're sold on the 5.9 Cummins (and fair enough, it's a beast when it's right), aim for the 2003 to 2007 model years. These trucks use the high-pressure, common-rail injection system, ditching ...

The Cummins 5.9-liter diesel engine has powered Ram trucks since 1989. It went through a few changes over its lifespan, but which years should be avoided?

The Cummins 5.9-liter's basic construction makes it more reliable and with fewer reported problems than the 6.7-liter diesel. It also sips less diesel since it has fewer emissions components.

What is a 5.9-liter Cummins diesel engine? Well, for hardcore enthusiasts, it's arguably one of the most popular oil-burners ever produced.

The Cummins diesel engines boast a worldwide reputation for bulletproof durability. In fact, some 30-year-old Cummins-powered high-mileage Ram trucks command new truck prices. So, what is considered ...

Check out the comparison of the 6.7L Cummins turbo diesel engine versus the 5.9L Cummins turbo diesel engine, only on dieselpowermag.com, the official website of Diesel Power magazine.