Mercury – Diesel Engine Switched Power Harness | 6 Ft | Power Harness | 8M0150522

The Mercury diesel engine switched power harness is designed for diesel installations where additional routing length is required between the engine and powered components. This harness provides engine-switched power, ensuring connected systems receive voltage only when the engine is running and shut off cleanly when the engine is off.

The 6-foot length offers added flexibility for mid-size engine compartments, allowing wiring to route smoothly around engine components without excess slack. Proper routing helps reduce strain on connectors, supports stable electrical performance, and improves long-term reliability in demanding diesel environments.

Key Features

• Engine-Switched Power Feed – Supplies power only when the engine is running
• 6-Foot Harness Length – Provides added routing flexibility without excess cable
• Diesel-Specific Design – Built for Mercury diesel electrical systems
• OEM Wiring & Connectors – Manufactured to factory electrical and durability standards

Engine & Boat Compatibility

• Mercury diesel engines
• Boats with mid-size diesel engine compartments
• Mechanical control systems
• DTS control systems

Important Notes

• Designed specifically for Mercury diesel applications
• Not intended for gasoline outboard systems
• Confirm required harness length before installation
• Professional installation recommended for diesel electrical systems

FAQs

1) What is the purpose of an engine-switched power harness?
It delivers power only when the engine is running, preventing connected accessories from drawing power when the engine is off.

2) When should I choose a 6-foot harness instead of a shorter one?
A 6-foot harness is ideal when components are mounted farther from the engine or when additional routing flexibility is needed around engine hardware.

3) Is this harness compatible with DTS diesel systems?
Yes. It is compatible with Mercury diesel installations using both mechanical and DTS control systems.

4) Can this harness be used on gasoline engines?
No. This harness is designed exclusively for Mercury diesel electrical systems.

5) Why use an OEM Mercury diesel power harness?
OEM harnesses use the correct wire gauge, insulation, and sealed connectors to help prevent corrosion, voltage drop, and intermittent electrical issues common in diesel environments.