Z-Series Full Sweep Electric Diesel Fuel Rail Pressure Gauge by Auto Meter. 2-1/16", 0-30,000 PSI. Features: Full sweep precision stepper motor movement. Includes 10.5 ft. tubing or wiring harness. For use with 2002 and up Chevrolet & GMC Duramax, 2003 and up Dodge Cummins, and 2008-2010 Ford Powerstroke Diesels Only Connects to OE fuel rail pressure sensor wiring.