New Mercury & Mariner 6-Cylinder Internal Outboard Wiring Harnesses

This page showcases a curated selection of six‑cylinder internal wiring harnesses specifically for Mercury and Mariner outboard engines. All harnesses are manufactured by CDI Electronics and designed to provide reliable ignition and electrical connectivity. Whether you are restoring an older outboard or maintaining your current setup, these harnesses deliver OEM-quality performance, long-lasting durability, and straightforward installation—backed by OBParts’ commitment to accuracy and marine expertise.