Mercury – Ignition Harness Non-DTS 14-Pin | Engine Ignition and Gauge Wiring | 84-896537T20Mercury Ignition Harness Non DTS 14 Pin Engine Ignition and Gauge Wiring 84 896537T20 The Mercury Non DTS Ignition Harness is designed for mechanical control setups that require a longer, uninterrupted wiring run between the helm and the engine. It is commonly used on boats with forward mounted consoles or extended rigging layouts where shorter harnesses are insufficient. The 20 foot length helps eliminate the need for stacked extensions while keeping