Your 6.7 cummins high pressure fuel pump replacement job

If you're starting to notice your truck stumbling under load or throwing those dreaded low rail pressure codes, a 6.7 cummins high pressure fuel pump replacement might be moving to the top of your weekend to-do list. It's definitely not the most fun way to spend a Saturday, but if you own a Ram with the 6.7L diesel, it's a component you need to keep a close eye on. Whether you're dealing with a failing Bosch CP4 on a newer model or just a high-mileage CP3 that's finally seen its last gallon of diesel, getting that pump swapped out correctly is the difference between a reliable rig and a truck that leaves you stranded on the side of the highway. ...

May 6, 2026 · 7 min · Pulido Emanuel