Mercury MerCruiser Transom Harness Assembly

The Mercury MerCruiser 8M0095579 Harness Assembly is a genuine Mercury Marine OEM transom wiring harness designed for selected MerCruiser sterndrive and SmartCraft-equipped applications. This harness provides the critical electrical connection between the engine compartment and transom assembly, carrying power, sensor signals and communication data throughout the vessel’s electrical system. (mercruiserparts.com)

Manufactured to Mercury Marine specifications, the harness is built with marine-grade wiring, weather-resistant connectors and protective sheathing to withstand heat, moisture, vibration and corrosion in demanding marine environments. Genuine Mercury harnesses ensure proper fitment, reliable communication between engine and vessel systems, and long-term electrical system reliability.

The 8M0095579 harness is commonly used on SmartCraft-enabled MerCruiser engines and transom assemblies where accurate communication between engine sensors, controls, trim systems and instrumentation is essential. It plays a key role in supporting SmartCraft gauges, VesselView displays, DTS controls and engine management systems.

Replacing a damaged or corroded harness can help resolve intermittent electrical faults, communication errors, sensor issues and starting problems. Mercury OEM harnesses are designed to meet factory electrical specifications and provide dependable performance throughout the life of the vessel.

Engine serial number verification is recommended before ordering, as harness configurations can vary significantly between model years and engine packages.