Magneto Switch and Cover

The Longacre Magneto Switch and Cover (SKU LON52-45440) is a heavy-duty toggle switch designed for ignition control and magneto systems in racing, marine, and industrial applications. This weatherproof magneto switch handles up to 40 amps at 12 volts, making it ideal for drivers and technicians who demand reliable on/off control in harsh environments. The included protective cover shields the switch mechanism from moisture, vibration, and accidental activation—critical features for high-performance vehicles and outdoor equipment.

This magneto switch features four terminals that enable flexible wiring configurations for magneto ignition systems, allowing precise control over engine start and shutdown sequences. The toggle action provides tactile feedback and positive engagement, ensuring operators know the switch position at a glance. The weatherproof cover maintains electrical integrity even in wet conditions, dust, and high-vibration environments typical of racing pits, boats, and off-road applications. Its compact footprint (4.2 x 0.85 x 5.55 inches) and lightweight design (0.13 lbs) simplify installation in space-constrained engine bays without adding significant weight.

Racers, marine mechanics, and performance enthusiasts rely on this magneto switch for dependable ignition management on track, water, and trail. The 40-amp rating accommodates modern ignition coils and dual-mag systems, while the 12-volt specification matches standard automotive and marine electrical systems. Installation involves connecting the four terminals to your magneto wiring harness—compatibility depends on your specific ignition configuration, so verify terminal layout with your vehicle's electrical schematic before ordering.