CDI Electronics 114-4911 Mercury Mariner Switch Box 2 Cylinder

The CDI Electronics 114-4911 Switch Box is a high-quality replacement ignition component designed for 2-cylinder Mercury and Mariner outboard engines. This switch box is a critical component of the capacitor discharge ignition (CDI) system, controlling the timing and discharge of voltage to the ignition coil for reliable engine performance.

Key Features:

• Designed for 2-cylinder Mercury and Mariner outboard engines
• Precision-engineered voltage threshold control for optimal ignition timing
• Durable construction built to withstand harsh marine environments
• Direct replacement for OEM switch boxes
• Backed by CDI Electronics' 30+ years of marine ignition expertise

Replaces OEM Part Numbers:

• Mercury 332-4911A2, 332-4911A5, 332-4911A8
• Mercury 338-4733, 338-4733A2 (requires wire splicing)
• Sierra 18-5786, 18-5787 (requires wire splicing)

The switch box works by establishing a voltage threshold and discharging a capacitor to the ignition coil when that threshold is achieved. As the trigger rotates with throttle position, ignition timing is automatically varied to match engine demands. This ensures optimal combustion and reliable starting across all operating conditions.