Sierra 118-99178 Power Pack for Johnson/Evinrude Outboard

The Sierra 118-99178 Power Pack is a premium replacement ignition module designed for Johnson and Evinrude outboard motors. This critical component controls the timing and delivery of electrical current to the ignition coils, ensuring reliable engine starting and optimal performance on the water.

Key Features:

• Manufactured to meet or exceed OEM specifications for reliable performance
• Marine-grade construction designed to withstand harsh saltwater and freshwater environments
• Direct replacement for factory power pack components
• OEM matched wire colors for simplified installation and identification
• Precision-engineered circuitry ensures consistent spark delivery across all cylinders

Sierra marine engine parts are built with quality materials and advanced engineering to provide long-lasting, dependable performance. Each power pack undergoes rigorous quality control testing to ensure it meets the demanding requirements of marine applications, including resistance to moisture, vibration, and corrosion.