Part Numbers
63P-8591A-35-00
Replaces:
63P-8591A-38-00
63P-8591A-37-00
63P-8591A-36-00
63P-8591A-34-00
63P-8591A-33-00
63P-8591A-32-00
63P-8591A-30-00
These part numbers represent updated Yamaha service replacements within the same ECU family. Yamaha periodically updates ECU part numbers while maintaining compatibility with the same engine platform. Your unit may show one number stamped on the ECU while Yamaha catalogs list a newer service replacement number.
Description
OEM Yamaha engine control unit (ECU / ECM / PCM) used on Yamaha F150 four-stroke outboards.
This module manages fuel injection, ignition timing, sensors, and overall engine management for the Yamaha EFI system.
This unit was removed from a Yamaha F150TXR and includes a CDI diagnostic report showing hours, run history, and codes.
Condition
- No visible damage
- Ready to install
- Tested good on the engine prior to removal
- Also tested with a CDI diagnostic tester
- 1617.2 hours of total run time
- No active fault codes
- CDI diagnostic report will be included with your order
Fitment
Yamaha Outboard Engines
2004-2014
F150 — 150 HP
Inline-4
EFI
4 Stroke
Example Model: F150TXR
We have provided this cross-reference with the resources we have available in regards to fitment. This most likely will not fit every model for the years and horsepowers we have listed. We urge you to make sure this is the exact item you need by matching the part number to what is required for your motor. If you need help doing so, please contact us prior to purchasing and we would be happy to help!
Warranty
This part is sold with a 1 YEAR WARRANTY provided by Southcentral Outboards.
If the part does not work or stops working within 1 year, we will replace it. If a replacement is not available, we will issue a refund.
Disclaimer
If you order this incorrectly or change your mind within 45 days, you may return it with a 20% restocking fee plus shipping. You must contact us in order to facilitate that. You cannot open a return on eBay in this case.
If you'd like, I can also show you a slightly stronger version of that service replacement explanation that tends to reduce buyer confusion and returns on ECU listings. It’s something a lot of marine salvage sellers have started using.
