Mercury – 2-Pin Extension Harness (10 ft) | Rigging Accessory | 84-8M0191740

Overview
This 10-foot extension harness gives you the extra reach needed to run the electric steering actuator wiring through the rig tube and up under the cowl. It’s basically the “make-life-easier” piece for installs where the standard harness comes up short. Each actuator needs its own extension, so every unit gets a clean, relaxed wiring run. When the harness isn’t stretched or bent sharply, the steering system usually feels smoother and more consistent.

Key Features
 • 10-Foot Length – Adds enough room for an easy, stress-free wiring path.
 • 2-Pin Connector – Plugs straight into the actuator circuit.
 • Cleaner Routing – Helps avoid tight bends or pinched wiring.
 • One Per Actuator – Every actuator gets its own extension.
 • OEM Marine Wiring – Built to hold up to vibration, spray, and real-world use.

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

Performance & Practical Benefits
With the extra length, the harness can follow a smooth, natural route instead of being forced around corners or pulled tight. That keeps the actuator’s signal steady, which you’ll notice the most at idle or when sliding into a slip. It also helps prevent long-term wear, since nothing is stretched or rubbing where it shouldn’t.

Why Buy OEM
OEM wiring fits the connectors the right way and holds up in the marine environment. The materials last, the plugs stay tight, and you avoid the strange electrical quirks that sometimes pop up with off-brand wiring.

FAQ
Q1: How do I know if I need this extension?
A: If the actuator harness won’t comfortably reach under the cowl, this is the missing piece.

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

Q3: Is this fine for saltwater?
A: Absolutely. Just keep the connection points clean when you wash the boat.

Q4: Anything to check before installing?
A: Make sure the rig tube is clear and the harness won’t rub against anything sharp.

Q5: What if steering still feels inconsistent afterward?
A: That usually points to calibration or another wiring issue, not the extension harness.