Mercury – CAN Data Harness (10-Pin, No Resistors) | 40-Foot SmartCraft Lead | 84-8M0166624

Overview

Extra-long boats, flybridge layouts, and deep rigging corridors often need far more SmartCraft cable than standard harnesses provide. The Mercury 84-8M0166624 CAN Data Harness adds a full forty feet of non-terminated SmartCraft wiring, giving you the reach to run CAN P, CAN X, and CAN H cleanly from helm to rigging—even across multi-level or wide-beam layouts. It keeps the network organized, avoids overstretched cable runs, and maintains steady communication throughout the system.

Key Features

• 40-Foot Extension – Ideal for long SmartCraft routing paths on large or multi-station boats.
• Yellow 10-Pin SmartCraft Plug – Standard connector carrying CAN P, CAN X, and CAN H.
• Non-Terminated Harness – For systems that already have the correct network termination elsewhere.
• Full CAN Signal Support – Transmits all SmartCraft communication lines without interruption.
• Built for Multi-Bus Systems – Supports CAN P, X, and H SmartCraft architectures.
• OEM Connector Quality – Factory SmartCraft ends ensure a secure, marine-ready connection.

Compatibility

• SmartCraft CAN P networks
• SmartCraft CAN X networks
• SmartCraft CAN H networks
• Standard 10-pin yellow SmartCraft harness points

Performance & Practical Benefits

This harness gives you the length needed to route SmartCraft data through long console runs, tall cabin bulkheads, or dual-station rigs without stressing the cable. It allows cleaner rigging paths and eliminates the sharp bends and tension that can show up on large boats with limited cable reach. Once connected, the CAN signals stay steady, keeping modules and helm devices communicating the way they should.

Why Buy OEM

SmartCraft networks depend on proper shielding, correct pin alignment, and tight-fitting connectors. Mercury’s OEM harness maintains those standards over long distances, preventing the noise or intermittent faults that cheaper harnesses often introduce. It’s built to withstand vibration, moisture, and the constant motion of large boats in real use.

FAQ

Q1: When is the 40-foot harness the right option?
When the SmartCraft data line needs to cross long distances, such as flybridge layouts or wide console spans.

Q2: Does this harness include resistors?
No. It’s a non-terminated lead meant for networks with termination already installed.

Q3: Will this affect SmartCraft module performance?
No. It simply extends CAN P, X, and H communication.

Q4: Can this be used on DTS systems?
Yes—if the DTS configuration uses the yellow 10-pin SmartCraft layout and termination is handled elsewhere.

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