Sierra 18-99222 Ignition Pack for Mercury Outboard Engines

The Sierra 18-99222 ignition pack is a direct replacement Capacitor Discharge Module (CDM) designed for Mercury and Mariner outboard engines. This critical ignition component controls spark timing and delivers high-voltage current to the spark plugs, ensuring reliable engine starting and smooth operation.

Key Features:

• Direct replacement for Mercury/Mariner OEM ignition packs
• High-quality construction for marine environments
• Reliable spark timing control for optimal engine performance
• Manufactured to meet or exceed OEM specifications
• Built-in circuit protection against voltage spikes

Sierra is a trusted name in marine replacement parts, offering quality components that deliver dependable performance season after season. This ignition pack is designed to withstand the harsh marine environment including exposure to moisture, salt, and vibration.

Note: Verify compatibility with your specific Mercury or Mariner outboard model before purchasing. Proper installation and connection of all wiring harnesses is essential for correct operation.