CDI Electronics 18-5797-1 Mercury Mariner Trigger Assembly 3 Cylinder

The CDI Electronics 18-5797-1 (also known as CDI 134-6453) is a precision-engineered ignition trigger assembly designed for Mercury and Mariner 3-cylinder outboard engines. This critical component relays crankshaft position to the ignition system, ensuring each spark plug fires at the precise moment for optimal engine performance.

Key Features:

• Direct OEM replacement for Mercury/Mariner 3-cylinder engines (50, 60, 65, and 70 HP models from 1977-1990)
• Replaces Mercury part numbers 68162A3, 68162A6, 96455A1, and 96455A8
• Constructed with marine-grade materials to resist heat, vibration, and water intrusion
• Plug-and-play design matches OEM wiring layouts and connectors for straightforward installation
• Designed specifically for harsh marine environments

CDI Electronics recommends replacing sensor coils 174-4469 and 174-4470 simultaneously with this trigger assembly for optimal ignition system performance. This trigger is backed by CDI Electronics' 2-year limited warranty when installed by a professional marine technician.