Variant 1
ECU- Catalog engine
- 9000 378HP
- Engine code
- 6090HCQ04
- Controller brand
- PHOENIX
- ECU
- L21
- Stock power
- 378 HP
- ECU SW
- SW63227B
- ECU HW
- RE571640
- Calibration
- J06090L016566
JOHN DEERE · L21 ECU
JOHN DEERE S670 L21 tuning files
JOHN DEERE S670 on the L21: matched, calibrated and delivered with care. Across the matched variants stock power runs from 378 to 378 HP. Stage 1 and Stage 2 are the safe starting points for this platform. We match the right calibration to your exact software and validate it before delivery.
Available solutions
What we can run on the L21 for this vehicle — the precise options narrow down by engine and software version.
Engine variants & ECU software
4 distinct variants for the JOHN DEERE S670 on the L21 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 9000 378HP
- Engine code
- 6090HCQ04
- Controller brand
- PHOENIX
- ECU
- L21
- Stock power
- 378 HP
- ECU SW
- SW63227B
Variant 3
ECU- Catalog engine
- 9000 378HP
- Engine code
- 6090HH015
- Controller brand
- PHOENIX
- ECU
- L21
- Stock power
- 378 HP
Variant 4
ECU- Catalog engine
- 9000 378HP
- Engine code
- 6090HH015
- Controller brand
- PHOENIX
- ECU
- L21
- Stock power
- 378 HP
- ECU SW
- SW60595L
- ECU HW
- RE545990
Related vehicles
Other vehicles built on the L21 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the JOHN DEERE S670 on the L21?
Stage 1, Stage 2. The exact set depends on the specific engine and software version.
Do you cover the L21 ECU software on this model?
Yes — the JOHN DEERE S670 on the L21 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.
How is the file delivered?
Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.