While 40-year-old engines might not be expected to be the most reliable today, a certain diesel engine has found itself with an incredible reputation.

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. Cummins engines were dominant in agriculture long before ...

Here's the story of perhaps the most legendary diesel engine ever made, the Cummins 5.9L.

When it comes to diesel pickup trucks, the big three names have traditionally been Powerstroke (Ford), Duramax (GM and Chevrolet), and Cummins (Ram and Dodge). While each brand and its fans are ...

Diesel engines are more durable by their very nature, and these ones are practically unkillable.

Cummins engines have earned a bit of a cult following over the decades — and for good reason. In the U.S., they're the iron workhorses found in everything from pickup trucks to massive semis, and they ...