Mercury – Vessel Sensor Extension Harness 10 Foot | Sensor Extension Harness | 84-899888T22

The Mercury Vessel Sensor Extension Harness (10 Foot) is designed for Mercury diesel installations where vessel sensor wiring must travel longer distances across the engine room or through rigging paths. It is commonly used on larger boats where factory sensor leads are not long enough to reach the vessel interface panel, sensor modules, or routing channels cleanly.

The 10-foot length allows relaxed, strain-free routing without stretching connectors or modifying the original harness. By maintaining factory shielding and connector integrity, this extension harness helps preserve clean signal transmission while keeping wiring organized and protected in demanding marine environments.

Key Features

• Diesel Vessel Sensor Extension – Extends existing Mercury diesel sensor wiring
• 10-Foot Length – Ideal for medium-length routing runs
• OEM Mercury Connectors – Ensure secure fit and stable data flow
• Factory-Compatible Shielding – Maintains proper signal integrity
• Marine-Grade Construction – Built to withstand vibration, moisture, and engine-room conditions

Engine & Boat Compatibility

• Mercury diesel engines
• DTS diesel control systems
• Axius diesel systems
• Mercury diesel electronic monitoring networks

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 proper routing to avoid sharp bends, pinch points, or connector strain.

FAQs

1) When do I need the 10-foot extension instead of the 5-foot version?
Use the 10-foot harness when sensor wiring must travel farther across the engine room or around bulkheads and rigging channels.

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

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

4) Why should I avoid generic extension wiring?
Generic extensions can introduce electrical noise, poor connector fit, and data dropouts. OEM harnesses preserve proper shielding and signal quality.

5) Where is this extension typically installed?
Common locations include engine rooms, rigging tunnels, bulkhead transitions, and near vessel interface or sensor modules.