Back in October, we reported on an investigation by the National Highway Traffic Safety Administration into an alleged defect inside the high-pressure fuel pumps of certain 2019 and 2020 Ram ...

Cummins’ 5.9L diesel engines have many wonderful traits, from the simplicity of their design to the durability and reliability of their internal components. However, the powerplants also have parts ...

Cummins, Inc. is recalling more than 9,000 X15 diesel engines with certain fuel pump barrels that can fracture and cause a fuel leak, according to National Highway Traffic Safety Administration ...

Cummins Inc. is recalling more than 9,000 X15 diesel engines with certain fuel pump barrels that can fracture and cause a fuel leak, according to National Highway Traffic Safety Administration ...

The National Highway Traffic Safety Administration is working with Stellantis to investigate potential high-pressure fuel pump failures in its 2018-2020 Ram trucks with the 6.7-liter Cummins diesel ...

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.

As newer and flashier trucks became available, many people forgot about the older '89 to '93 Dodges. There's no doubt that this early 5.9L Cummins is a workhorse, but can it make power? The answer is, ...

When it comes to gas-guzzling engines, the American automotive industry is known for building some of the best V8s of all time. However, US manufacturers have also developed some legendary diesels, ...

Detroit — Stellantis is recalling more than 240,000 diesel heavy-duty trucks, mainly in North America, to fix fuel pumps that can fail and cause engine stalls. The recall covers certain 2019 and 2020 ...

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