Sierra 18-5785-1 Power Pack for Johnson/Evinrude Outboard Motors

The Sierra 18-5785-1 Power Pack is a critical ignition system component designed for Johnson/Evinrude outboard motors. This ignition module controls the precise timing of spark delivery to all engine cylinders, ensuring reliable starting and smooth engine operation in marine applications.

Key Features:

• Controls ignition timing and spark delivery for proper engine performance
• Stores electrical charge from stator coils and releases it to ignition coils at the correct time
• Engineered to meet or exceed OEM specifications for reliable operation
• Direct replacement for OMC part number 585261
• Compatible with Johnson/Evinrude 35-50 HP outboard motors (1993-2005)

Cross-Reference Part Numbers:

• OMC/Johnson/Evinrude: 585261
• CDI Electronics: 113-5316
• Mercury Marine: 878834, 878834001
• Mallory: 9-25013

The power pack is an essential component in capacitor discharge ignition (CDI) systems, working in conjunction with the stator, trigger coils, and ignition coils to provide the high-voltage spark needed for combustion. Sierra marine parts are manufactured to rigorous quality standards, providing dependable aftermarket replacement solutions for professional mechanics and boat owners.