Mercury – 5-Pin NMEA 2000 / CAN H Extension Harness | 1 m | 84-879171T02

Overview
Sometimes your GPS or IMU module just needs a little extra room to land in the right spot. The Mercury 84-879171T02 Extension Harness adds a simple 1-meter stretch to your NMEA 2000 or CAN H wiring so you can route things the way they were meant to be—without forcing cables to bend sharply or hang tight behind the dash. It’s a clean, straightforward fix for those installations that are “just one meter short.”

Key Features

• 1-Meter Extension – Gives you a bit more reach without adding unnecessary slack.
• Male-to-Female 5-Pin – Standard Micro-C ends that drop into NMEA 2000 and CAN H networks.
• Good for GPS/IMU Placement – Helps you position sensors exactly where they read best.
• Flexible Marine Cable – Built to handle vibration, heat, and everyday rigging life.
• Easy Install – Plug it in and route it where you need—no cutting or splicing.

Compatibility

• NMEA 2000 (Micro-C) networks
• Mercury CAN H
• IMU sensors, GPS antennas, heading modules

Performance & Practical Benefits
This harness solves the classic problem of a sensor that’s almost—but not quite—close enough to the backbone. The extra meter keeps tension off the connectors and gives you freedom to tuck the cable out of sight. Once installed, the network behaves exactly as it should, with steady data flow and zero fuss.

Why Buy OEM
Mercury’s connectors lock firmly and seal properly, which is something bargain extensions rarely manage. A loose or poorly sealed connector can cause interruptions in the data stream, especially on rough water. The OEM harness holds up season after season and saves you from chasing intermittent network issues later.

FAQ
Q1: Will this work on both NMEA 2000 and Mercury CAN H?
Yes—same Micro-C connector style for both.

Q2: Can I use it for more than GPS/IMU sensors?
Absolutely—anything that uses a standard 5-pin Micro-C plug.

Q3: Does it need any programming?
No. It’s a simple extension cable.

Q4: Is it safe to use outdoors or near open water?
Yes. The connectors are sealed for marine use.

Q5: Will adding this cause any dropouts?
Not when using OEM harnessing—signal quality stays solid.