Mercury – Engine to Vessel Interface Panel Extension Harness | 5 Foot | Sterndrive Harness Extension | 84-879312T

The Mercury engine-to-vessel interface panel (VIP) extension harness (5 foot) is designed for Mercury diesel sterndrive installations where the VIP is mounted away from the engine. It extends the factory wiring between the engine and the interface panel without cutting, splicing, or stressing original harness connections.

The five foot length is ideal for compact engine rooms and short routing paths, allowing clean installation while maintaining stable communication between engine systems and the vessel interface panel.

Key Features

• Engine to Vessel Interface Panel (VIP) Extension – Extends factory connection between engine and VIP
• 5-Foot Length – Supports short, controlled routing paths in compact engine compartments
• Non-DTS Diesel Design – Built specifically for non-DTS diesel sterndrive applications
• OEM Mercury Connectors – Ensures secure fit and proper signal integrity
• Factory-Correct Wiring – Maintains reliable system communication

Engine & Boat Compatibility

• Mercury Diesel 2.0L engines
• Mercury Diesel 2.8L engines
• Mercury Diesel 4.2L engines
• Mechanical control systems
• Diesel sterndrive applications (non-DTS)

Important Notes

• Designed specifically for non-DTS diesel sterndrive systems
• Used only to extend the connection between the engine and VIP
• Does not replace the main engine or vessel wiring harness
• Maintains OEM connector shielding and communication quality

FAQs

1) When is this VIP extension harness needed?
It is used when the vessel interface panel is mounted farther from the engine than the factory harness allows, such as in compact engine rooms or custom sterndrive layouts.

2) Is this compatible with DTS systems?
No. This harness is intended for non-DTS diesel sterndrive applications only.

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

4) Why should I use an OEM extension instead of a generic one?
OEM harnesses preserve proper signal shielding, connector fit, and communication stability. Generic extensions can cause data errors or intermittent faults.

5) Does this harness require any programming or calibration?
No. It is a plug-and-play extension that maintains factory communication once installed correctly.