Tachometer 3,500 RPM2 1/4" squareAC Alternator 6 imp/rev ( 12 magnets)Light kit 186-12A2 sold separately2AT3A-6SKU: 2AT3A-6$142.00PriceSize*2 1/4" SquareRPM Range*0-3500 RPMIgnition Type*AC Lighting coil or Alternator2 cycle # of AC pulses per rev.*6Quantity*Add to Cart