MSD - Black - Replacement Wheel for Crank Trigger Kit (p/n: 86203) 5 in ID - 10

5 in ID - 10 in Length - 100 lb/in Spring Rate - Steel - Black Powder Coat - Each

For increased stability

This coil is designed for use with Holley HP and Dominator ECU's

812 in Stack Diameter - Plastic - Black - Engler - Set of 4

MSD - Black - Replacement Wheel for Crank Trigger Kit (p/n: 86203) 5 in ID - 10Most crank triggers have a wheel, with steel studs sticking out, bolted to the harmonic balancer. As the crankshaft turns, the studs pass by a stationary magnetic pick up, triggering the ignition. This pick up can be triggered by other bolts, debris or even vibrations which will cause a loss of power or engine damage. The MSD Flying Magnet Crank Trigger uses four magnets secured in the aluminum trigger wheel that pass by a stationary non magnetic pick