Genuine Honda OEM PGM-FI unit (ECU, ECM, engine control module, fuel injection computer) for the Honda Rebel 300 CMX300AC. The Keihin-made unit runs the fuel injection and ignition. The label on the unit reads 38770-K87-L02 with the AC code, and it came off a 2018 Honda Rebel 300. Photos are of the actual part you will get.

Fitment

• 2017 Honda Rebel 300 CMX300AC
• 2018 Honda Rebel 300 CMX300AC
• 2019 Honda Rebel 300 CMX300AC
• 2017 Honda Rebel 300 ABS CMX300AAC
• 2018 Honda Rebel 300 ABS CMX300AAC

The OEM parts diagrams list 38770-K87-L02 only on the AC versions of the 2017-2019 Rebel 300. The CMX300A version of the same years uses 38770-K87-A02, and the 2020-2022 Rebel 300 uses 38770-K87-A81 or 38770-K87-L81, so this unit does not fit those bikes. Check the part number against yours before you buy.

Part Numbers

Condition

Please note: Overall in good shape, please review pictures for any damage. Came off a 2018 Honda Rebel 300, in good shape.

Used OEM part. Expect normal wear consistent with age and mileage. Please review all photos for any damage or wear before purchasing. The images show the actual part you will receive, and everything pictured is included. ECU and PGM-FI modules may require proper programming, registration, or pairing depending on the motorcycle and installation. Buyer is responsible for confirming compatibility and any required setup.

What You Get

• Honda PGM-FI unit (ECU) 38770-K87-L02
• Everything pictured is included

Not included: Wiring harness and mounting hardware.

Shipping

Free shipping on this part. Ships within 1 business day of cleared payment. Items are packed to survive the carrier. Combined shipping is available on multiple parts — request an invoice before paying and we will refund the difference.

Please verify fitment against your own OEM part number before purchasing. Compatibility data is provided as a guide and does not cover every market variant.