Stewart Warner 82171 Heavy Duty Tachometer, Electric, 3-3/8 Inch

Heavy duty tachometer has a common 3-3/8" diameter Feature bold white graphics designed to pop against the black face Black raised bezel has a distinctive brushed bright rim Includes a patented 12 volt light ring system that provides excellent night-time visibility Works on nearly any 12 volt, negative ground engine of 4, 6 or 8 cylinders with points-type or electronic ignitions