Alternate Action Switch

The MSD Ignition Alternate Action Switch (SKU MSD8812) is a specialized push-button control device designed for high-performance ignition systems and engine management applications. This switch enables drivers and technicians to select between dual ignition modes or alternate firing configurations, making it an essential component for racing engines, dual-fuel systems, and advanced engine tuning setups. The spiral coiled cord design provides flexible routing in tight engine compartments while maintaining reliable electrical contact during operation.

Built with durability in mind, the Alternate Action Switch features a robust push-button mechanism engineered to withstand repeated actuation in demanding engine environments. The spiral coiled cord construction allows for organized wire management and reduces the risk of tangling or pinching during installation and operation. This switch integrates seamlessly with MSD Ignition's comprehensive ignition control systems, delivering consistent switching action and dependable circuit activation across a wide temperature and vibration range typical in performance automotive applications.

Professional installers and performance enthusiasts benefit from this switch's straightforward integration into MSD Ignition systems, particularly in vehicles equipped with switchable ignition mapping or dual-stage fuel management. The compact physical footprint—measuring 6.1 x 1.7 x 7.85 inches and weighing just 0.41 lbs—allows for discreet mounting on dashboards, center consoles, or custom control panels. Installation is straightforward, making it ideal for both new builds and retrofit applications where space constraints and clean aesthetics are important considerations.