Sierra 118-5758-1 Power Pack for Johnson/Evinrude Outboard Motors

The Sierra 18-5758 Power Pack is a critical ignition system component designed for Johnson/Evinrude outboard motors ranging from 4 to 60 HP. This aftermarket replacement part serves as the heart of the capacitor discharge ignition (CDI) system, storing electrical energy from the stator and releasing precisely timed high-voltage pulses to the ignition coils when signaled by the trigger mechanism.

Key Features:

• Direct replacement for OMC part numbers 582453, 583380, 582452, 0581927, and 0581924
• Compatible with Johnson/Evinrude 2-stroke outboards from 4 HP to 60 HP (1977-1984 model years)
• Engineered to meet or exceed OEM specifications for reliable performance
• Sealed, solid-state electronic construction designed for harsh marine environments
• Provides proper ignition timing and spark delivery across all cylinders

Sierra Marine products are built to withstand the demanding conditions of marine applications, offering premium-quality aftermarket replacements that deliver OEM-level performance and durability. This power pack is essential for maintaining proper engine operation, preventing misfires, rough running, and hard starting conditions commonly associated with failed ignition modules.