Mercury – 3-Pin Extension Harness (25 ft) | Rigging Accessory | 84-8M0193672

Overview
This 25-foot 3-pin extension harness gives you the extra reach needed when the steering breakout and the electric steering actuator are farther apart than what the shorter harnesses can handle. It’s meant for bigger boats or layouts where the wiring takes a long or winding path through the rig tube. Each actuator uses its own harness, which keeps the wiring relaxed instead of stretched tight. With a cleaner run, the steering system usually feels more steady—especially at idle or when you’re easing into a slip.

Key Features
 • 25-Foot Length – Plenty of distance for long rigging runs.
 • 3-Pin Connector – Plugs directly into the steering breakout lead.
 • For Electric Steering – Built specifically for Mercury electric steering setups.
 • One Per Actuator – Every actuator gets its own extension harness.
 • OEM Marine Wiring – Durable insulation that handles vibration, spray, and daily use.

Engine & Boat Compatibility
 • Electric steering actuators
 • Digital Throttle and Shift
 • SmartCraft network
 • Single- and multi-station layouts

Performance & Practical Benefits
The extra length lets you route the harness the way you want to, instead of forcing sharp bends or squeezing it through tight spots. A relaxed wiring run helps the actuator get a cleaner signal, which you’ll notice most during slow steering and docking. It also helps prevent long-term wear since the harness isn’t under tension or rubbing where it shouldn’t.

Why Buy OEM
OEM harnesses fit the connectors properly and hold up to real marine conditions. They stay tight, resist corrosion, and keep the steering system from developing random electrical issues down the road.

FAQ
Q1: When would I choose the 25-foot version?
A: When the shorter harnesses won’t comfortably reach the actuator or the wiring path is long and winding.

Q2: Do I need one per actuator?
A: Yes—each actuator uses its own extension.

Q3: Is it good for saltwater boats?
A: Yes. Just keep the connectors clean during washdowns.

Q4: Anything to check before installing?
A: Make sure the routing path doesn’t have sharp edges or pinch points.

Q5: What if steering still feels off afterward?
A: That usually points to calibration or another wiring issue—not the harness itself.