2003-2004 Ram Cummins 5.9L 24V I6
2003-2004 Ram Cummins 5.9L 24V I6

175 Products

2004.5-2007 Ram Cummins 5.9L 24V I6
2004.5-2007 Ram Cummins 5.9L 24V I6

199 Products

2007.5-2018 Ram Cummins 6.7L 24V I6
2007.5-2018 Ram Cummins 6.7L 24V I6

338 Products

2019-2024 Ram Cummins 6.7L 24V I6
2019-2024 Ram Cummins 6.7L 24V I6

157 Products

CUMMINS ENGINE

There are three significant hitters in the light-duty diesel world. Two makes offer V8 turbo diesel configurations, and the other make comes to play with an inline 6. Don’t discount this engine missing two cylinders alongside its competitors. It is comparable in cubes, and as historic data shows, inline engine configurations effortlessly outperform V8 counterparts. Halfway through 2007 the 6.7 liter, inline 6 Cummins engine emerged and came out swinging against its competitors. Continuing Cummins’ legacy from the infamous 5.9 liter everyone crazes over, the 6.7 offered much more useable tech for the engine. 

VGT TURBOCHARGERS

Utilizing variable geometry turbochargers (VGT), allowed a broader power band. In addition, it is offering a turbo brake that compliments slowing down heavy loads while towing. Ever hear a Jake Brake on a big rig rumbling past you on the interstate? Depending on exhaust configuration and load on your Ram, these surprisingly offer the same exhaust notes of a big rig 18-wheeler. One of the major complaints of the 6.7 Rams are that the turbos are constantly failing. Whether it’s the variable veins seizing or the VGT actuator failing, this is a great time to ditch the factory turbo setup for a complete drop in Cheetah turbo manufactured by Fleece Performance. Excellent upgrade and value for the money, absolutely one of our favorite upgrades for this Achilles heel. 

HIGH-PRESSURE COMMON RAIL

Should we begin discussing fueling on these modernized 6.7s? Both 5.9 and 6.7 use a high-pressure common rail. However, the 6.7 injectors operate at a much lower voltage and substantially higher pressures. The higher pressures allow the engine to deliver power sooner than its predecessor through sophisticated engine mapping. Advancements in engine mapping and technology allow the engine to produce fewer emissions. Win-win for the environment and your ability to produce smiles per gallon. Whoever said diesel can’t be fun daily drivers never owned one!