Description
Sierra 18-5194 Johnson/Evinrude Ignition Coil is a premium, epoxy-sealed marine-grade replacement coil designed to restore high-voltage spark energy to older Johnson and Evinrude outboard motors. Engineered to meet or exceed original equipment specifications, this part resolves common ignition issues such as weak spark, hard starts, and intermittent cylinder misfires.
Engine Compatibility
This ignition coil is specifically compatible with classic V4 and other select Johnson/Evinrude outboard engine models spanning from 1971 to 1977, generally covering the 50 HP to 135 HP range:
- 50 HP: 1971–1975
- 65 HP: 1972–1973
- 70 HP: 1974–1975
- 75 HP: 1975
- 85 HP: 1973–1977
- 115 HP: 1973–1975
- 135 HP: 1973–1975
Cross-Reference & Part Numbers
The Sierra 18-5194 seamlessly interchanges with several Outboard Marine Corporation (OMC) original equipment numbers:
- OMC / BRP: 0502890, 0581032, 0582160, 0584632, 580821, 584362
- Other Interchanges: CDI Electronics 183-4632
Technical Specifications
- Construction: Heavy-duty, epoxy-sealed housing with brass internals to withstand harsh marine environments.
- Primary Resistance: 98 to 105 megaohms.
- Secondary Resistance: 2.08K to 3.1K Ohms.
- Included Hardware: Package comes with the mounting bracket, rubber grommets, and terminals.
Installation Tip
When replacing your coils, change them one at a time. This prevents you from accidentally mixing up the spark plug wires and ground configurations. Ensure you use a wire brush to clean any corrosion off the mounting surface to achieve a solid ground connection
