Mercury – CAN Data Harness (10-Pin, One Resistor, Non-DTS) | 20-Foot SmartCraft Lead | 84-879981T20

Overview

Some SmartCraft setups need more reach than the standard harness allows, and they also need a proper termination point built right into the cable. The Mercury 84-879981T20 CAN Data Harness covers both. With twenty feet of blue-connector SmartCraft cable and a single integrated resistor, it provides a long, clean run for CAN P communication while giving the network the correct load on one end. It keeps the wiring simple, tidy, and stable across larger helm layouts.

Key Features

• 20-Foot Extension – Adds substantial routing length for wide consoles and long rigging paths.
• Integrated Single Resistor – Supplies proper termination at one end of the CAN P backbone.
• Blue 10-Pin Connector – Non-DTS SmartCraft plug designed for CAN P networks.
• Straight CAN P Path – Carries SmartCraft communication cleanly with no extra circuits.
• Backbone Stability – Helps reduce signal noise and intermittent communication faults.
• OEM Marine Build – Factory connectors and shielding hold up to vibration and moisture.

Compatibility

• SmartCraft CAN P networks
• Non-DTS SmartCraft systems (blue connector)
• Installations requiring a single built-in terminator

Performance & Practical Benefits

This harness gives you the length you need to cross larger helms or deeper rigging channels, while the built-in resistor stabilizes the network on the termination end. It removes the need for a separate terminator plug and helps the CAN P data move smoothly through the system. Once installed, modules and gauges communicate reliably, and the helm wiring stays cleaner and easier to trace.

Why Buy OEM

SmartCraft communication depends heavily on proper termination and solid connector fit. Mercury’s OEM harness uses the correct resistor value and SmartCraft-grade shielding, preventing the glitches or intermittent faults that cheaper cables often cause. The factory connectors stay tight through everyday use, vibration, and marine conditions.

FAQ

Q1: When is a 20-foot harness with one resistor a good choice?
When a CAN P network needs extra routing distance and a built-in termination point on one end.

Q2: Does this replace a separate terminator?
Yes. The resistor is integrated into the harness.

Q3: Will this affect how SmartCraft modules operate?
No. It simply ensures proper termination and extends the CAN P line.

Q4: Can this be used on DTS networks?
No. This blue connector version is built for non-DTS CAN P systems only.

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