Mercury – Next-Gen ERC Extension Harness Kit (Triple) | 5-Foot Extension | 98-8M0173754

Overview
This five-foot extension gives a triple-engine Next-Gen ERC setup the extra slack it usually needs when space behind the helm gets tight. Triple-engine boats often have longer or more awkward rigging paths, and this harness keeps you from forcing sharp bends or stretching the wiring. It lets everything run in a cleaner, more natural line, which makes the controls feel steadier. It’s a small add-on that takes a lot of stress out of the install.

Key Features
• Five-Foot Extension – Adds useful extra length for cleaner routing.
• Triple-Engine ERC Use – Built for three-engine Next-Gen electronic remote control systems.
• OEM Connectors – Factory ends that snap in tight and stay locked.
• Easier Routing – Helps avoid tight corners, pinches, and pulled wiring.
• Stable Control Path – Keeps throttle and shift signals consistent.

Engine & Boat Compatibility
• Next-Gen ERC
• Triple engine
• Digital rigging layouts

Performance & Practical Benefits
With more room to work, the harness can follow a smoother path, which helps the controls feel more natural when you bump the throttles or shift around the dock. It also keeps the rigging bay from getting packed too tightly, so service work later on isn’t a headache. On triple-engine rigs, that extra breathing room goes a long way toward keeping everything calm and predictable.

Why Buy OEM
OEM harnesses hold up better to vibration, heat, and saltwater than off-brand wiring. The connectors match Mercury’s system exactly, so you’re not dealing with loose plugs or strange control glitches. It’s wiring you can rely on for the long haul.

FAQ
Q1: How do I know I need this extension?
A: If your triple-engine ERC harness won’t quite reach or forces a tight bend, this five-foot extension usually fixes it.

Q2: Any setup or calibration needed?
A: None—just plug it in.

Q3: Is it good for saltwater boats?
A: Yes. Rinse now and then and keep an eye on the connectors.

Q4: Any installation tips?
A: Give it a smooth route with gentle bends so nothing is under strain.

Q5: What are early signs the harness may be wearing out?
A: Jerky controls, intermittent signals, or spots where the jacket is rubbing through.