Mercury – Remote Control Wiring Harness | Ignition and Engine Control | 40 Foot | 84-896537K40

The Mercury Remote Control 40-Foot Wiring Harness is designed for boats that require extended distance between the helm and the outboard without relying on stacked extensions. It is commonly used on larger hulls where a single, continuous wiring run helps keep ignition and engine control signals clean and dependable. The added length allows wiring to remain relaxed and properly supported throughout the rigging path.

Using the correct harness length helps reduce unnecessary connection points and supports consistent signal transfer over longer distances. Proper routing, secure fastening, and routine inspection help limit wear caused by vibration or tension while making future service access easier on extended rigging layouts.

Key Features

• 40-Foot Continuous Harness – Provides a single, uninterrupted wiring run for long helm-to-engine installations
• Fourteen-Pin Engine Connector – Supports ignition and engine signal communication
• Integrated Ignition Wiring – Delivers clean start and stop signal flow without adapters
• Marine-Grade Construction – Designed to withstand vibration, moisture, and typical engine-compartment heat
  
  

Engine & System Compatibility

• Mercury outboards
• Mechanical remote control systems
• ECM-equipped engines
• Two-stroke and four-stroke Mercury outboard platforms
  
  

Important Notes

• Confirm engine connector type and pin configuration before ordering
• Route and secure the harness properly during installation
• Avoid strain, abrasion, and tight bends along the wiring path
• Verify proper ignition and engine communication after installation
  
  

FAQs

1) What is this 40-foot remote control wiring harness used for?
It provides a full-length wiring connection between the helm and the engine on installations requiring extended reach.

2) Why choose a one-piece harness instead of extensions?
A single harness reduces connection points, helping improve signal reliability and simplify rigging.

3) Does this harness include ignition wiring?
Yes. It includes integrated ignition wiring for clean start and stop signal flow.

4) What connector type does this harness use?
It uses a fourteen-pin engine connector for ignition and engine control signals.

5) Why choose an OEM Mercury wiring harness?
OEM harnesses are built to Mercury electrical specifications, helping ensure reliable signal transfer, proper resistance values, and long-term durability.