ECM Electronic Control Module (ECM) – 41000677 / 42023067 / 41000706
Replacement ECM for 2021 Harley‑Davidson
Overview
High‑quality replacement Electronic Control Module (ECM) designed for select 2021 Harley‑Davidson motorcycles. This unit corresponds to manufacturer and interchange part numbers listed below and is intended as a direct-fit replacement for compatible models.
Details
- Type: ECM (Electronic Control Module / Engine Control Unit)
- Manufacturer Part Number (MPN): 41000677
- Interchange Part Number: 42023067
- Other Part Number: 41000706
Features & Notes
- Direct replacement part for compatible 2021 Harley‑Davidson motorcycles (confirm fitment).
- Controls engine management functions and diagnostics.
- May require professional installation and dealer or specialist programming/reflashing to pair with your motorcycle and clear vehicle-specific coding.
- Sold as the ECM unit only unless otherwise stated.
Compatibility / Fitment Check
If you are unsure whether this ECM is for your motorcycle, please send us your vehicle VIN and we will verify fitment for you. Providing the VIN is the fastest way to ensure correct part selection.
How to Order / Contact
Message us with your VIN or any questions about installation or programming requirements. We’ll help confirm compatibility and provide any additional information you need.





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