Variant 1
ECU- Catalog engine
- 12500 619HP
- Engine code
- 6125SFM75
- Controller brand
- PHOENIX
- ECU
- L4
- Stock power
- 619 HP
- ECU SW
- SW60177A
- ECU HW
- RE507981
- Calibration
- RG6125S061816
JOHN DEERE · L4 ECU
JOHN DEERE 6125SFM75 L4 tuning files
Here is what the catalog holds for the JOHN DEERE 6125SFM75 on the L4. Stock output across the matched variants spans 619–619 HP. Stage 1 and Stage 2 are the safe starting points for this platform. Your file is built against the exact ECU software on the car, then operator-verified.
Available solutions
Solutions that apply to the L4 on this vehicle platform. The exact set depends on the specific engine and software version.
Engine variants & ECU software
1 distinct variant for the JOHN DEERE 6125SFM75 on the L4 ECU. Reference the engine and controller software when you upload.
Related vehicles
Other vehicles built on the L4 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 6125SFM75 on the L4?
Stage 1, Stage 2. The exact set depends on the specific engine and software version.
Do you cover the L4 ECU software on this model?
Yes — the JOHN DEERE 6125SFM75 on the L4 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.