MSD - Window RPM Activated Switch 25 in Tall - O-Ring

25 in Tall - O-Ring Seal Cap - Screw-On - Vent - Square - Plastic - Black / Orange - Set of 4

without needing any external sensor information

Cleco Pins - 3/16 in OD - Steel - Cadmium - Set of 10

750 in Round Port - Steel Core Laminate - GM LS-Series - Pair

520 in - Duration 290 / 300 - 112 LSA - 1500 / 6500 RPM - Oldsmobile V8 - Kit

MSD - Window RPM Activated Switch 25 in Tall - O-RingThe RPM Activated Switch, PN 8950, has two activation wires; one to ground a circuit and the other to open a circuit. Simply plug in an rpm module and wire the Switch to the circuit you want to activate. When the engine rpm reaches that amount, the circuit is activated and will remain on until the rpm falls below that amount.