19-24 Ram 6.7L Cummins #4 Mopar Fuel Injector Line

Fits: 2019-2024 Ram 6.7L Cummins

This is a genuine OEM part from the Mopar brand. On the 6.7 L I6 diesel engine (in the 2019-2024 trucks), this supply tube/line delivers high-pressure fuel from the common rail / injector pump system to the fuel injector in that cylinder. So it’s a critical fuel system component.

Because this is part of the high-pressure injector fuel supply system, proper installation is essential. Leaks or improper torque can cause major issues (fuel leak, poor injector delivery, engine mis-behavior). If you're replacing it due to a failure or leak, it’s often recommended to inspect or replace other nearby supply lines / injectors as needed (because if one fails, chances are others may be marginal).

Any contamination (metal shavings, dirt) entering the fuel system when replacing lines can damage injectors/pumps. Do work in clean conditions. Consider torque specs, whether you need new gaskets/seals, bleed procedure after installation.

When installing, maybe replace nearby fuel supply/return lines if they show wear/damage — since you’re already in the area. If you have upgraded injectors, performance tuning, etc., make sure this supply line is compatible (though typically the OEM line is fine for most stock or mild modifications).

Mopar: 68479999AA