Sierra 69724P Arctic Series IBIO Twin Engine Gauge Kit Features Gauge Description Twin Engine Add On IBIO Gauge Kit Gauge set 4 Scratch-resistant domed glass lenses Enhanced illumination through-dial and perimeter lighting for excellent readability at night U.S. and metric scales, with ISO symbols, where appropriate Optional add-on eyebrow or square bezels available see Gauge Accessories for details Contains 68376P Water Temperature 68383P Voltmeter 68374P 7K Tachometer 68367P Oil Pressure Gauge