New Mercury & Mariner 4-Cylinder Outbord Internal Wiring Harnesses

Discover high-quality internal engine wiring harnesses for Mercury & Mariner 4-cylinder outboards at OBParts. Our OEM-grade ignition system components include a variety of part numbers such as 84-850045A, 84-43443A, 84-89915A, 84-18672A, and 84-96277A, compatible with numerous 2-stroke models (e.g., 80HP Jet, 100HP, 115HP, 125HP). Find precise fits, dependable performance, and easy compatibility—all in one place. Whether you’re replacing worn harnesses or restoring engine ignition reliability, OBParts offers trusted options tailored to your Mercury or Mariner outboard engine needs.