Z-Series Series Full Sweep Electric Diesel High Pressure Oil Pump Pressure Gauge by Auto Meter. 2-1/16", 0-4,000 PSI. Features: Full sweep precision stepper motor movement. Includes 10.5 ft. tubing or wiring harness. For use with 1994-2003 7.3L & 2003-2007 6.0L Ford Powerstroke Engines ONLY Connects to OE High Pressure Oil Pump sensor wiring.