Mercury – Next-Gen ERC Extension Harness Kit (Triple) | 5-Foot Extension | 98-8M0173754Mercury Next Gen ERC Extension Harness Kit (Triple) 5 Foot Extension 98 8M0173754 OverviewThis five foot extension gives a triple engine Next Gen ERC setup the extra slack it usually needs when space behind the helm gets tight. Triple engine boats often have longer or more awkward rigging paths, and this harness keeps you from forcing sharp bends or stretching the wiring. It lets everything run in a cleaner, more natural line, which makes the controls