Mercury - Tiller Power Harness (2.5 m) Rigging Accessory 84-8M0210365. OverviewThis 2.5-meter tiller power harness connects the tiller cowl to the power center on 20-35E electric outboards. It's designed for setups where the shorter harnesses just don't give you enough reach, especially on wider or slightly more spread-out layouts. With the extra length, you can route the cable naturally without forcing tight bends or stretching it across the boat.. Key Features • 2.5 m Length - Great for longer