Mercury – Diesel Vessel Sensor Extension Harness 20 Foot | Sensor Wiring Extension | 84-899887T17

The Mercury Diesel Vessel Sensor Extension Harness (20 Foot) is designed for Mercury diesel installations where additional distance is required between vessel sensors and the primary sensor harness. It provides a factory-correct signal extension without cutting, splicing, or modifying existing wiring.

The 20-foot length is ideal for larger hulls, wide helm layouts, and complex routing paths where standard harness lengths are insufficient. It helps maintain clean, organized wiring while preserving stable and accurate sensor communication across extended distances.

Key Features

• Diesel Vessel Sensor Extension – Extends existing Mercury diesel sensor wiring
• 20-Foot Length – Supports long routing distances in large or complex installations
• OEM Connector Design – Maintains proper signal integrity and secure factory fit
• Factory-Compatible Shielding – Preserves accurate data transmission
• Marine-Grade Construction – Built to resist vibration, heat, and moisture

Engine & Boat Compatibility

• Mercury diesel engines
• Diesel vessel sensor systems
• DTS diesel control systems
• Non-DTS diesel control systems
• Axius diesel applications

Important Notes

• Used only to extend an existing vessel sensor harness.
• Does not replace the primary vessel sensor harness.
• Eliminates the need for splicing or custom wiring.
• Ensure connectors are fully seated and routing avoids sharp bends or pinch points.

FAQs

1) When should I use the 20-foot sensor extension harness?
Use this harness when vessel sensors and interface points are spaced far apart, such as on large boats or complex helm-to-engine layouts.

2) Is this compatible with DTS and Axius diesel systems?
Yes. It is compatible with Mercury DTS and Axius diesel configurations.

3) Can this be used on gasoline engines?
No. This harness is designed specifically for Mercury diesel sensor systems.

4) Why shouldn’t I use a generic wiring extension?
Generic extensions can introduce signal noise, poor connector fit, and data loss. OEM harnesses preserve factory signal quality and reliability.

5) Where is this harness typically routed?
Common routing areas include engine rooms, bulkheads, rigging tunnels, and helm-to-engine wiring paths.