Mercury – Rig Center Breakout Harness V12 | Transmission to Stringer Harness | 84-8M0173596

Overview
This harness gives the V12 rig center a clean, direct way to pass transmission signals over to the stringer harness. It keeps the wiring simple, which really helps when you’re working in tight spots or trying to keep things from turning into a tangled mess. Everything lands where it should, so you’re not guessing which wire goes where later on. It’s the kind of piece that quietly keeps the whole setup running smoother.

Key Features
    • Breakout Harness – Creates a clean branch from the V12 rig center.
    • Transmission-to-Stringer Link – Sends transmission signals straight into the stringer harness.
    • V12-Specific Layout – Built for the wiring paths used on V12 platforms.
    • OEM Connectors – Factory-style plugs that lock in place.
    • Organized Routing – Keeps the harness easy to follow and service.

Engine & Boat Compatibility
    • V12 rig center
    • Transmission signal pathways
    • Stringer harness systems

Performance & Practical Benefits
Running a proper breakout harness keeps shifting signals steady and predictable, especially when the boat’s loaded down or you’re easing in and out of gear. It cuts down on wire strain, which helps avoid loose or noisy connections later. The layout is easier to understand when you come back for service, and you’re not digging through a crowd of random wires. It just leaves the whole rigging area calmer and easier to work with.

Why Buy OEM
OEM harnesses fit the way Mercury intended, so the connectors seat tight and stay that way. The materials handle heat, vibration, and saltwater better than off-brand wiring. It’s the kind of part you install once and trust for a long time.

FAQ
Q1: How do I know I need this harness?
A: If your V12 rig needs a clean way to send transmission signals to the stringer harness, this is the piece that does it.

Q2: Does anything need calibration after installing it?
A: No—once it’s plugged in, it just carries the signals.

Q3: How does it handle saltwater?
A: Give it a rinse now and then and check the connectors; it holds up well.

Q4: Any installation tips?
A: Keep the harness relaxed—no sharp bends or tight pulls.

Q5: What are early signs the harness might be wearing out?
A: Intermittent shifting behavior, loose connectors, or jacket wear showing along the run.