Mercury & Mariner Internal Outboard Wiring Harnesses

Discover top-grade internal wiring harnesses designed explicitly for Mercury and Mariner outboard engines at OBParts. Serving ignition systems across multiple engine configurations (2-, 3-, 4-, 6-, and even 8-cylinder), our harnesses deliver enhanced durability and dependable electrical performance. Choose among trusted brands like CDI Electronics and Sierra, designed for smooth installation and backed by fast shipping and expert marine parts support. Whether you're maintaining a classic Mercury setup or upgrading your Mariner wiring system, our selection ensures precision, quality, and compatibility. You can explore today and power your ignition with confidence.