Mercury – NMEA 2000 T-Connector | Network Expansion Tee | 8M0204742

Overview

The Mercury 8M0204742 NMEA 2000 Tee gives you a simple, reliable way to add a new device to your N2K backbone. Whether you’re installing a sensor, a display, or an engine gateway, this standard Tee provides the proper branch connection without clutter or guesswork. It’s built to NMEA 2000 specifications and drops directly into any 5-pin network.

Key Features

• Standard N2K Tee – Creates a clean branch point for adding NMEA 2000 devices.
• 5-Pin Compatibility – Works with any NMEA 2000–compliant connector.
• Backbone + Drop Layout – Supports the required “trunk-and-drop” network structure.
• OEM Marine Build – Durable, sealed construction suited for vibration and moisture.
• Plug-and-Play Expansion – No rewiring—just plug the Tee inline and connect your device.

Compatibility

• All NMEA 2000 networks and devices
• SmartCraft gateways, MFDs, sensors, autopilot components, and other N2K modules
• Standard 5-pin Micro-C style connectors

Performance & Practical Benefits

This Tee lets you expand your backbone the right way—keeping the network neat, compliant, and easy to troubleshoot. It provides a stable connection point for drops while maintaining proper backbone continuity. Whether you’re adding a single device or building out a larger network, this Tee is a reliable building block that keeps everything organized.

Why Buy OEM

Quality matters in NMEA 2000 networks. Mercury’s OEM Tee ensures tight connector engagement, proper pin alignment, and long-term durability. Off-brand fittings often loosen or fail under vibration, leading to communication dropouts. The OEM connector gives you dependable performance across the entire network.

FAQ

Q1: What does this Tee do?
It adds a branch connection so you can plug an NMEA 2000 device into the backbone.

Q2: Is it compatible with non-Mercury equipment?
Yes—it's fully standard NMEA 2000.

Q3: Does it include a terminator?
No. Terminators are installed at the ends of the backbone, not on the Tee.

Q4: Can I chain multiple Tees?
Yes, as long as the overall network follows NMEA 2000 layout rules.

Q5: Is installation simple?
Very—insert the Tee into the backbone and connect your drop cable.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.