QuickCar’s Extreme Oil Pressure, Water Temperature, and Oil Temperature gauges with a 3" Tachometer mounted in a black panel measuring 15-1/8” wide and 4-1/2” tall. Extreme Gauges are set apart from other mechanical gauges by the internal warning light feature. As pressures drop or temperatures rise, internal LED lights illuminate causing the entire face of the gauge to change color. Tachometer has a 3” display from 0-10,000 RPM’s with a single high recall and can be used with a 4-cylinder, 6-cylinder, or V8 engine. Panel comes complete with all sending units and wiring for easy installation. Water and Oil Temp. gauges both come with a 1/2”-NPT adapters to mount in almost any high-performance engine while Oil and Fuel Pressure have standard 1/8”-NPT fittings for plumbing lines (sold separately) Internal warning lights activate when Oil Pressure drops below 20 PSI, Water Temp. goes above 235°F, Oil Temp. rises above 280°F, and Fuel Pressure drops below 4 PSI.