Mercury – Next-Gen ERC Extension Harness Kit (Dual) | 5-Foot Extension | 98-8M0173753 MerCruiser-5-0L-5-7L-TKS-Alpha-2013 The 807166A1 water shutter does

The 807166A1 water shutter does one thing but does it exceptionally well — it protects your engine from backwash

Very flexible and easy to use

and fatigue under heat and load

Check Engine Performance Before Launching

while the glossy Phantom Black finish helps resist corrosion from both freshwater and saltwater environments

Mercury – Next-Gen ERC Extension Harness Kit (Dual) | 5-Foot Extension | 98-8M0173753 MerCruiser-5-0L-5-7L-TKS-Alpha-2013 The 807166A1 water shutter doesMercury 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