Mercury MerCruiser Relay
$276.35
Genuine Mercury MerCruiser relay for selected diesel and sterndrive applications. Designed for reliable switching of engine and vessel electrical circuits. Replaces Mercury part number 879277 and is commonly used on CMD and QSD diesel engine systems.
The Mercury MerCruiser 898101794 Relay is a genuine Mercury Marine OEM electrical component designed for selected MerCruiser diesel and sterndrive engine applications. This relay acts as an electrically controlled switch, allowing low-current control circuits to safely operate higher-current engine and vessel systems. It is commonly used within engine starting, ignition and control circuits where reliable electrical switching is critical.
Manufactured to Mercury Marine specifications, the relay is designed to withstand vibration, moisture and temperature fluctuations commonly encountered in marine environments. Genuine Mercury relays provide dependable electrical performance and ensure proper compatibility with Mercury engine management systems and wiring harnesses.
The 898101794 relay supersedes Mercury part number 879277 and has been used across a variety of MerCruiser diesel applications, including selected 2.0L and 3.0L CMD diesel engines. It is also referenced as a starter relay on certain Cummins MerCruiser Diesel (CMD) QSD engines.
A faulty relay can cause intermittent starting issues, failure of electrical systems to operate correctly, communication faults or unreliable engine operation. Replacing worn relays with genuine Mercury components helps maintain system reliability and factory performance.
