Mercury – Adapter Harness | 10-Pin J-Box to 5-Pin NMEA 2000 (Kvaser/CZone) | 84-8M0137667

Overview

When you’re working with CZone programming or using a G3 cable for diagnostics, you need a clean way to bridge Mercury’s 10-pin SmartCraft J-Box connector to a standard 5-pin NMEA 2000 layout. The Mercury 84-8M0137667 Adapter Harness does exactly that. It creates a direct link between the SmartCraft network and Kvaser diagnostic hardware so you can program, troubleshoot, or configure CZone systems without improvising cables or risking bad connections.

Key Features

• SmartCraft-to-N2K Adapter – Converts a 10-pin J-Box male connection to a 5-pin NMEA 2000 male plug.
• Kvaser-Compatible – Designed specifically for use with Kvaser diagnostic tools.
• Required for CZone Workflows – Supports CZone programming when used with a G3 programming cable.
• Clean Signal Path – Maintains proper pin alignment and reliable communication between networks.
• OEM Marine Build – Durable connectors and cable sheathing built for real-world rigging conditions.
• Plug-In Simplicity – No splicing or workarounds—just connect and start programming or testing.

Compatibility

• Mercury SmartCraft 10-pin J-Box ports
• 5-pin NMEA 2000 (N2K) diagnostic interfaces
• Kvaser diagnostic tools
• CZone systems requiring G3 cable programming

Performance & Practical Benefits

This harness makes SmartCraft-to-CZone programming much smoother. Instead of stacking adapters or relying on makeshift cables, you get a clean, purpose-built connection that keeps communication steady. It’s especially helpful during system commissioning or troubleshooting, giving technicians and installers a reliable way to work between SmartCraft and NMEA 2000-based diagnostic tools.

Why Buy OEM

Programming and diagnostic cables must be precise. Mercury’s OEM harness ensures the pin mapping, shielding, and connector fit are all correct—critical for Kvaser and CZone communication. Off-brand adapters can cause intermittent signal loss or complete failure to communicate, which wastes time and risks corrupted programming. The OEM harness gives you a stable, trusted connection.

FAQ

Q1: What does this harness connect?
It links a 10-pin SmartCraft J-Box to a 5-pin NMEA 2000 connector for use with Kvaser and CZone tools.

Q2: Is this required for CZone programming?
Yes—when using a G3 cable and Kvaser device, this is the adapter that bridges the networks.

Q3: Does it work with standard NMEA 2000 devices?
It’s primarily for diagnostics and programming, not for powering or expanding an N2K network.

Q4: Does it include the G3 cable?
No. This is the adapter harness only.

Q5: Is installation difficult?
No. It’s plug-and-play—connect each end and begin your diagnostic or programming workflow.