Speedhut 2-1/16" Tachometer Gauge 6K RPM mini Shift-light Fits into 2.062" (52mm) dash cutout Works with both distributor and distributor-less ignitions WITHOUT requiring a tach adapter. Practically universal, works with most gasoline engines, Programmable from 0.5 - 6 PPR. Compatible with auxiliary mini-shift light LIFE-TIME WARRANTY on gauge electronics!