Description
The Sierra 18-5159 Mercury Ignition Coil is a premium marine-grade aftermarket replacement coil designed to meet or exceed OEM specifications for Mercury Marine engines. It is engineered to withstand harsh saltwater and freshwater conditions while delivering consistent spark performance.
Product Overview & Key Specs
- Build Quality: Built with a high-quality brass secondary post to provide maximum corrosion resistance in marine environments.
- Thermal Management: Integrated cooling heatsinks improve heat dissipation, protecting the component from thermal failure under heavy engine loads.
Engine Compatibility
This ignition coil fits a broad selection of Mercury Marine DFI (Direct Fuel Injection) engines ranging from 110 to 250 horsepower. Notable compatible configurations include:
- Mercury Outboards, Race Outboards, and Race Sterndrives
- Mercury Sport Jet configurations
- Key models: 110 Jet, 150 Pro XS, 200 DFI, 225 DFI, 250 DFI, and Verado V-135, V-150, and V-175
OEM Interchangeability
The Sierra 18-5159 can be used as a direct cross-reference replacement for the following manufacturer numbers:
- Mercury Marine: 300-8M0077471, 300-879984T01, 339-879984A1, 339-879984T00, 339-8M0077473, 339-883778A01, 339-883778A02
- CDI Electronics: 184-0003
- Mallory/Other: 740344
