Mercury Engine Control Module (ECU), 25HP 8M0165350

Mercury Engine Control Module (ECU) 8M0165350 is a genuine Mercury OEM replacement engine computer designed for compatible Mercury 25HP outboards. The ECU monitors and controls critical engine functions including fuel delivery, ignition timing, idle speed, and engine diagnostics to ensure reliable performance and efficient operation.

Compatible with the following:

• Mercury 25HP outboards (see serial number for exact fitment)

Manufactured to Mercury Marine's OEM specifications, this replacement ECU is engineered to provide the proper fit, function, and communication with your engine's electrical and fuel management systems. Genuine Mercury ECUs help maintain factory performance, reliability, and compatibility with SmartCraft-equipped applications where applicable.

Installation may require engine-specific programming or calibration depending on the application. Refer to your service manual or consult an authorized Mercury dealer for installation procedures.

To Confirm Compatibility: Contact our team with your engine serial number at (727) 596-5929 before ordering.