Mercury – 3-Pin Extension Harness (15 ft) | Rigging Accessory | 84-8M0191745

Overview
This 15-foot extension harness gives you extra reach between the rig center’s 3-pin steering breakout and the electric steering actuator. It’s useful on boats where the shorter leads just don’t reach comfortably, or where you want the wiring to run in a cleaner, less cramped path. Each actuator uses its own harness, which keeps things simple and prevents the wiring from being pulled tighter than it should be. With a little more slack to work with, the steering system tends to feel calmer at idle and around the dock.

Key Features
 • 15-Foot Length – Extra room for longer rigging runs.
 • 3-Pin Connector – Hooks right into the steering breakout lead.
 • Electric Steering Ready – Built for Mercury’s electric steering setups.
 • One Per Actuator – Every actuator needs its own harness.
 • OEM Marine Wiring – Made to handle spray, vibration, and everyday use.

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

Performance & Practical Benefits
That extra length makes routing a lot easier. You can run the harness where it naturally fits instead of forcing it around tight corners. When the wiring isn’t strained or pinched, the actuator usually gets a steadier signal, and you’ll feel that as smoother steering when you’re creeping around the marina.

Why Buy OEM
OEM harnesses fit the connectors the way they’re supposed to and hold up well in real marine conditions. They stay tight, resist corrosion, and save you from chasing down weird electrical issues later on.

FAQ
Q1: When should I use the 15-foot harness?
A: Anytime the 3-pin lead won’t comfortably reach the actuator without stretching.

Q2: Does each actuator need its own harness?
A: Yes—one harness per actuator.

Q3: Is it fine for saltwater use?
A: Yep. Just keep the connectors clean during your normal washdown.

Q4: Anything to check before installing?
A: Make sure the routing path is smooth and doesn’t have sharp edges.

Q5: What if steering still feels off afterward?
A: That’s usually a calibration or wiring issue elsewhere—not the harness.