Mercury – CAN Data Harness (10-Pin, One Resistor, Non-DTS) | 30-Foot SmartCraft Lead | 84-879981T30

Overview

When a SmartCraft CAN P network has to stretch across a large helm or run through long rigging channels, it needs a harness that can cover the distance and still handle termination cleanly. The Mercury 84-879981T30 CAN Data Harness offers thirty feet of non-DTS SmartCraft cable with a single built-in resistor, giving the network the correct load on one end while keeping the wiring simple. It’s a long, clean extension meant for boats where space and layout demand more reach.

Key Features

• 30-Foot Extension – Ideal for long console runs, wide layouts, or multi-level routing.
• Integrated Single Resistor – Provides proper termination on one end of the CAN P backbone.
• Blue 10-Pin Connector – Built specifically for non-DTS SmartCraft CAN P systems.
• Straight CAN P Path – No additional branches—just a clean data link.
• Backbone Stability – Helps reduce signal noise and CAN dropouts.
• OEM-Grade Build – Factory connectors and shielding designed for tough marine use.

Compatibility

• SmartCraft CAN P networks
• Non-DTS SmartCraft systems (blue 10-pin layout)
• Installations requiring built-in single termination

Performance & Practical Benefits

This harness makes it easier to run SmartCraft CAN P wiring through larger boats without stressing the connectors or pulling the cable tight. The added length gives you cleaner, more natural routing options, and the integrated resistor provides the proper load on one end of the backbone. Once installed, modules and gauges communicate smoothly, and the system stays stable even over long distances.

Why Buy OEM

SmartCraft networks rely on accurate termination and solid connector integrity. Mercury’s OEM harness uses the correct resistor value, proper shielding, and tight-fitting connectors to keep the CAN signal clean. Cheaper aftermarket harnesses often introduce noise or loose-fit issues, especially on long runs. The OEM build stays reliable through vibration, heat, and daily marine conditions.

FAQ

Q1: When is this 30-foot harness with one resistor the right choice?
When the CAN P network needs a long wiring run and a built-in termination point on one end.

Q2: Does this harness replace a standalone terminator?
Yes. The resistor is built directly into the harness.

Q3: Will this affect module or gauge behavior?
No. It simply ensures proper CAN P termination and extends the data line.

Q4: Can this be used with DTS networks?
No. This blue harness is intended only for non-DTS CAN P layouts.

Q5: Is installation straightforward?
Yes. It plugs inline using OEM connectors and routes like any standard SmartCraft cable.