GlowShift White 7 Color 4,000 PSI High Pressure Oil Pressure HPOP Gauge - for 1994-2003 7.3L & 2003-2007 6.0L Ford Power Stroke Diesel Engines - White Face - Clear Lens - 2-1/16" 52mm 2 1/16 (52mm) Inch White Face Gauge with a Magnified Lens High Pressure Oil Pressure Reading from 0 to 4,000PSI Recommended for 7.3L and 6.0L Ford Powerstroke Diesel Engines Only 7 Solid Color Settings and Two Color Cycle Modes with Dimmer Function that Allows the Gauge to Dim 30% Free Lifetime Technical Support & One Year Limited Warranty