Condition
⚠️ For Parts or Not Working / Untested
These control units have not been tested, and I am not sure if they are functioning correctly.
✅ Genuine Yamaha DEC electronic control units removed from a twin-engine Yamaha DEC control box.
Both units are marked 6X6-20, corresponding to Yamaha control unit assembly 6X6-85590-20-00.
These modules may require Yamaha diagnostic equipment/software and proper programming or synchronization to the engines/control system before they will operate correctly. Buyer should verify compatibility and installation requirements before purchasing.
Because I cannot properly test or program these units, they are being sold as-is, untested, for parts or repair.
📋 Brand: Yamaha
📋 Manufacturer: Mitsubishi
📋 Yamaha Part Number: 6X6-85590-20-00
📋 Marking: 6X6-20
📋 Type: DEC / Digital Electronic Control Unit
📋 Application: Yamaha Digital Electronic Control system
📋 Quantity: 2 Control Units
📋 Removed From: Twin-engine DEC control box
What’s Included
📦 (2) Yamaha 6X6-20 DEC control units
What’s pictured is what you will receive.
Notes
⚠️ Untested.
⚠️ Not sure if either unit operates correctly.
⚠️ Yamaha diagnostic equipment/software may be required to configure, register, synchronize, or pair these units with the engine/control system.
⚠️ Professional installation/programming is recommended.
⚠️ Please match 6X6-85590-20-00 and the connector configuration with your existing equipment before purchasing.
Shipping
🚚 Carefully packed and shipped with tracking.
Price
🏷️ #Yamaha #YamahaOutboard #6X6855902000 #6X620 #YamahaDEC #DECControl #YamahaECU #MarineElectronics #OutboardParts #TwinEngine #MitsubishiECU
