Variant 1
ECU- Catalog engine
- 12500 480HP
- Engine code
- 6125HZ008
- Controller brand
- PHOENIX
- ECU
- L4
- Stock power
- 480 HP
- ECU SW
- SW50857G
- ECU HW
- RE507980
JOHN DEERE · L4 ECU
JOHN DEERE 7400 L4 tuning files
Everything we work with on the JOHN DEERE 7400 fitted with the L4. Stock output across the matched variants spans 480–480 HP. For this platform the dependable path begins with Stage 1 and Stage 2. We match the right calibration to your exact software and validate it before delivery.
Available solutions
Applicable work for the L4 on this vehicle. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
1 distinct variant for the JOHN DEERE 7400 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 7400 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 7400 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.