Three failed 5th-gen Cummins engines were torn down, and the same core problem kept surfacing – just in different forms.

40 years is a long time in the automotive world. While a few prized cars from the 1980s may be exploding in value, not many would consider their 40-year-old engine technology reliable. One diesel ...

You don't have to be a diesel-head to have heard about Cummins engines. The Indiana-based diesel truck engine manufacturer has outdone itself in developing some of the strongest and reliable engines ...

A deep dive into the strengths and common issues of the legendary 5.9 Cummins 24-valve diesel engine. What makes this engine ...

When it comes to heavy-duty diesels, enthusiasts and truck owners inevitably circle back to the best American diesel engines: Ford's 7.3L PowerStroke, Dodge's 5.9L Cummins, and GM's 6.6L Duramax. If ...