Mercury – CAN Data Harness (10-Pin, No Resistors) | 30-Foot SmartCraft Lead | 84-879969T30

Overview

Big boats and long rigging channels often need far more cable than the standard SmartCraft lead provides. The Mercury 84-879969T30 CAN Data Harness adds thirty full feet of non-terminated SmartCraft wiring, giving you the room to route the harness cleanly through wide helms, deep consoles, and long structural runs. It carries CAN P, CAN X, and CAN H signals through the yellow 10-pin connector, making it a solid choice for systems where termination is already handled elsewhere.

Key Features

• 30-Foot Extension – Built for long SmartCraft routing runs on large or complex layouts.
• Yellow 10-Pin SmartCraft Plug – Standard connector carrying CAN P, CAN X, and CAN H.
• Non-Terminated Design – For networks that already have proper termination installed.
• Full CAN Support – Passes all SmartCraft communication channels cleanly.
• Made for Multi-Bus Systems – Supports SmartCraft CAN P, X, and H networks.
• OEM Connector Quality – Factory ends provide a reliable, secure connection.

Compatibility

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

Performance & Practical Benefits

This harness gives you the slack needed to run the SmartCraft line through long or obstructed routing paths without pulling the cable tight. It helps avoid sharp bends, provides cleaner organization behind the helm, and makes rigging easier on larger boats. Once connected, the CAN signals run normally, keeping SmartCraft modules and helm devices communicating without dropouts.

Why Buy OEM

SmartCraft communication depends on accurate pin alignment and solid shielding. Mercury’s OEM harness preserves both, preventing the noise, intermittent faults, and loose-fit issues common with aftermarket cables—especially over long runs. It’s built to last through vibration, moisture, and everyday marine use.

FAQ

Q1: When is the 30-foot harness the right choice?
When the standard SmartCraft lead isn’t long enough to reach between modules on large helms or deep rigging paths.

Q2: Does this harness include resistors?
No. It’s a non-terminated harness intended for networks with termination elsewhere.

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

Q4: Can it be used in DTS systems?
Yes—if the DTS setup uses the yellow 10-pin SmartCraft connection and already has proper termination.

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