This gray spark plug wire 857124A1 is a single high-quality lead featuring the plug boot on one end and the coil plug/boot on the other. Specifically designed for high-horsepower Mercury and Mariner 2-stroke outboards and JetDrive engines, it ensures a reliable electrical connection for peak ignition efficiency. Easy to install with common shop tools.
- Fits Mercury/Mariner 30-250hp 2-stroke and 120-240hp JetDrive engines
- Ensures a secure electrical connection for consistent spark
- Complete single wire with boots on both ends
- Produced to meet original equipment manufacturer specifications
- Essential for maintaining reliable ignition system performance
