Mercury – SC100 Data Harness | 10-Foot SmartCraft Link Extension | 84-880756T10

Overview

When SC100 gauges need to sit farther apart—or when the wiring has to cross a wider helm—this harness gives you the reach to make it work without forcing anything tight. The Mercury 84-880756T10 SC100 Data Harness adds a full ten feet of SmartCraft extension, making it easy to run the link cleanly through console chases or behind larger panels. It keeps the wiring relaxed, the layout cleaner, and the gauges communicating like they should.

Key Features

• 10-Foot Extension – Adds significant length for wider or more complex helm layouts.
• SmartCraft Data Link – Extends communication between SC100 Series instruments.
• Cleaner Routing Options – Helps avoid stretched cables and awkward behind-dash angles.
• OEM Connector Ends – Uses factory SmartCraft plugs for a tight, reliable connection.
• Consistent Data Transfer – Maintains steady SmartCraft communication across the full run.
• Ideal for Larger Consoles – Perfect for boats with wider dashes or multi-gauge clusters.

Compatibility

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

Performance & Practical Benefits

This longer extension makes gauge placement far more flexible. It gives you the freedom to route the harness around bulkheads, behind wider helm panels, or through longer wiring paths without stressing the connectors. The gauges still share data cleanly, and the extra reach helps the entire layout feel intentional and easy to work on later.

Why Buy OEM

SmartCraft networks rely on proper shielding, tight connectors, and accurate pin alignment. Mercury’s OEM harness holds those standards, keeping the data stable even over longer distances. Cheap extensions can introduce noise or loose-fit issues, but the factory harness stays secure and dependable season after season.

FAQ

Q1: When is the 10-foot extension the right choice?
When SC100 gauges sit far apart or the wiring needs to travel through a larger helm or console.

Q2: Does this change gauge performance?
No. It simply extends the SmartCraft data link.

Q3: Is this harness only for SC100 gauges?
Yes. It’s built specifically for SC100 Series linking.

Q4: Do I need tools to install it?
No. It plugs inline just like the factory connectors.

Q5: Will it work in tight rigging spaces?
Yes. The extra length actually makes routing easier in complex layouts.