General description Direct replacement for your unit, the CDI Switch Box Ignition Pack is designed for easy installation with a plug-and-play feature. This product requires no assembly and is made from premium quality electrical components, ensuring improved heat sink and charging capabilities. The quality of this ignition pack exceeds or matches the original part number equipment. Technical specifications Part Number: 18-5776, 114-7452A2, 114-7452A3, 9-25101, 339-7452A2, 339-7452A3, 899883230, M899883230 Engine Position: Outboard Fuel Type: Gasoline Condition: New Color: Black Material: Plastic + Metal Measurement allowed error: +/- 1-3 cm Compatibility and accessories Fit for Mercury Mariner 18 2Cyl (1980) Fit for Mercury Mariner 20 2Cyl (1986 - 1987) Fit for Mercury Mariner 25 2Cyl (1980 - 1987) Fit for Mercury Mariner 35 2Cyl (1984 - 1989) Fit for Mercury Mariner 40 2Cyl (1981 - 1984) Installation Plug-and-play, direct fit for easy installation No assembly required