The Auto Meter 2-1/16" Cobalt Fuel Rail Pressure Gauge 0-30K PSI gives you the critical info you need to monitor your high-pressure fuel system, helping you keep your diesel running strong.
Whether you're tuning for more power or just keeping an eye on fuel system health, this gauge delivers accurate, real-time readings with a precision electric stepper motor movement for smooth performance. Featuring crisp blue LED through-the-dial lighting, it’s easy to read in any conditions. It comes with a wiring harness for simple installation and works with 12 and 16-volt electrical systems to fit most setups.
While either gauge is truly universal, Auto Meter has some general fitment guidelines (with a cut-off year of typically 2007-2008) for a successful install of the gauges, choose the right gauge for your rig:
- The "Early" 6186 Gauge Dodge 5.9L Cummins, GM 6.6L Duramax LB7/LLY/LBZ, Ford 7.3L/6.0L Powerstroke
- The "Late" 6193 Gauge Dodge 6.7L Cummins, GM 6.6L Duramax LMM/LML/L5P, Ford 6.4L/6.7L Powerstroke
No matter what you drive, Auto Meter’s Cobalt Fuel Rail Pressure Gauge gives you the precision and reliability you need to keep your diesel at peak performance.