Mercury – SC100 Data Harness | 1-Foot SmartCraft Link Extension | 84-880756T1

Overview

Helm layouts don’t always line up perfectly with the length of the factory SmartCraft lead, and that’s where this short extension comes in handy. The Mercury 84-880756T1 SC100 Data Harness adds a simple one-foot stretch to the link between SC100 gauges, giving you just enough breathing room to place them where they look and function best. It keeps the wiring relaxed, helps avoid pinched bends, and makes behind-dash rigging feel a whole lot cleaner.

Key Features

• 1-Foot Extension – Gives you a little extra space to position SC100 gauges comfortably.
• SmartCraft Link Path – Extends the data line that ties SC100 Series instruments together.
• Easier Routing – Helps relieve tension on the main harness and cleans up the dash area.
• OEM Connector Ends – Snaps in securely using Mercury’s factory plug style.
• Reliable Data Flow – Keeps SmartCraft communication steady even with the added length.
• Good for Tight Spaces – Ideal when the dash layout is cramped and the stock cable falls just short.

Compatibility

• SC100 Series gauges
• SmartCraft data link ports
• Multi-gauge SC100 setups

Performance & Practical Benefits

This small extension solves a common rigging headache: gauges that fit the dash nicely but sit just outside the reach of the stock harness. With that extra foot, the wiring relaxes, the connectors aren’t strained, and the gauges can be spaced in a way that looks intentional instead of forced. Once plugged in, the SmartCraft data runs normally, and the overall helm feels more put together.

Why Buy OEM

SmartCraft networks depend on clean, dependable connections. Mercury’s OEM harness keeps the pins aligned, the shielding intact, and the data steady—something cheaper extensions often struggle with. The factory ends hold tight through vibration and daily running, giving you long-term reliability without the guesswork.

FAQ

Q1: When is this one-foot extension useful?
When your SC100 gauges need a little extra spacing and the original lead won’t quite reach.

Q2: Does this change how the gauges read?
No. It simply extends the SmartCraft data link.

Q3: Is it only for SC100 instruments?
Yes. It’s meant specifically for SC100 Series linking.

Q4: Do I need tools to install it?
No. It plugs inline with the existing connectors.

Q5: Can it help in tight helm areas?
Absolutely—the short length works well in cramped behind-dash spaces.