Mercury – Next-Gen ERC Extension Harness Kit (Dual) | 5-Foot Extension | 98-8M0173753Mercury Next Gen ERC Extension Harness Kit (Dual) 5 Foot Extension 98 8M0173753 OverviewThis five foot extension gives a dual engine Next Gen ERC setup the extra reach it sometimes needs when the stock harness wont quite make the run. Its useful on boats where the rigging path takes a sharper turn or the controls sit farther from the rig center than expected. Instead of forcing the wiring to stretch or snake through tight corners, this extension lets