CDI Electronics 18-5791-1 Mercury Mariner Ignition Pack 3 Cylinder Switch Box

The CDI Electronics 18-5791-1 is a high-quality replacement ignition pack designed specifically for 3-cylinder Mercury and Mariner outboard engines. This critical component controls the timing and firing of the ignition system, ensuring reliable engine performance and smooth operation on the water.

Key Features:

• Engineered for 1991-1997 Mercury/Mariner 3-cylinder outboards including 45 HP Jet, 50 HP, 55 HP, and 60 HP models
• Direct replacement for Mercury OEM part numbers 19052A1, 19052A2, 19052A3, 19052A5, 19052A6, 19052A7, and 19052A8
• Also replaces Sierra 18-5791 and CDI 114-9052
• Designed and manufactured for marine environments with corrosion-resistant construction
• Backed by CDI's 2-year limited warranty when installed by a professional marine technician

This ignition pack is an essential component of your outboard's electrical system, converting low-voltage signals from the stator and trigger into high-voltage pulses that fire the spark plugs. When your engine experiences hard starting, misfiring, or loss of power, a faulty switch box is often the culprit. Restore your outboard's performance with this reliable OEM-quality replacement part.