OEM Yamaha F300 F350 V8 ECU Engine Control Module 6AW-00 J5T45371 6AW-85740-00-00

Genuine OEM Yamaha Engine Control Unit (ECU) / Ignition Control Module manufactured by Mitsubishi and removed from a Yamaha four-stroke EFI outboard engine. This module is marked 6AW-00, J5T45371, and production code 8116, and corresponds to Yamaha part number 6AW-85740-00-00.

Designed for select Yamaha F300 and F350 5.3L V8 four-stroke outboards, this ECU manages critical engine functions including fuel injection, ignition timing, engine monitoring, and communication with the primary ECM for smooth, reliable performance.

This unit has been removed from a freshwater application and shows normal cosmetic wear consistent with previous marine use. Please verify compatibility using your engine model, serial number, and original part number prior to purchase.

Features & Highlights:

• Genuine OEM Yamaha Component
• Engine Control Unit (ECU) / Ignition Control Module
• Yamaha Part Number: 6AW-85740-00-00
• Module Marking: 6AW-00
• Mitsubishi Number: J5T45371
• Production Code: 8116
• Controls Fuel Injection & Ignition Timing
• Engine Monitoring & ECM Communication
• Factory Multi-Pin Connector
• OEM Mounting Tabs Intact
• Fits Select Yamaha F300 & F350 5.3L V8 Four-Stroke Outboards
• Freshwater Removed

Specifications:

• Brand: Yamaha
• Manufacturer: Mitsubishi
• Part Number: 6AW-85740-00-00
• Module Code: 6AW-00
• Mitsubishi Number: J5T45371
• Production Code: 8116
• Engine Compatibility: Select Yamaha F300 & F350 5.3L V8 Four-Stroke Outboards
• Fuel Type: Gasoline
• Condition: Used OEM

Condition Details:

This ECU is in good used condition with normal cosmetic wear from previous marine use, including light surface scratches and handling marks. The housing is intact, the connector terminals appear clean, and the mounting tabs are undamaged. The module has not been reprogrammed or modified. Please review all photos carefully and verify compatibility with your specific Yamaha engine model and serial number before purchasing.

Dealer Sale – Sunset Marine TX LLC

SKU: 10452