MSD 8812 Alternate Action Push Button Ignition On/Off Switch

The MSD 8812 Alternate Action Switch is a universal push-button ignition on/off switch engineered for racing applications. Designed to serve as an auxiliary ignition kill switch, it provides drivers with a convenient, within-reach solution for quickly cutting or restoring ignition power during competition.

Key Features:

• Alternate action push button design — press once to activate, press again to deactivate
• Configurable as Normally Open or Normally Closed to suit your wiring setup
• Compact form factor allows steering wheel mounting for easy driver access
• 0.63 in. mounting hole size for simple panel or steering wheel installation
• Constructed from durable plastic housing built to withstand harsh racing environments
• Compatible with MSD ignition systems via the white wire (Normally Open) or small red wire (Normally Closed)
• Wiring included — no relay required
• Red finish; non-lighted, no safety cover
• Sold individually

What's Included:

• 1 — Alternate Action Switch
• 2 — GP15K Diodes (required for Normally Open wiring configuration)

The MSD 8812 is designed to meet NASCAR auxiliary ignition on/off button amendment rule 20–6.6, making it a compliant and race-ready solution for sanctioned competition. Whether wired in a Normally Open or Normally Closed configuration, this switch delivers reliable ignition control exactly when you need it.