JOHN DEERE · L21 ECU

JOHN DEERE 7760 L21 tuning files

Tuning file coverage for the JOHN DEERE 7760 running the L21 ECU. Stock output across the matched variants spans 473–473 HP. Stage 1 and Stage 2 are the safe starting points for this platform. Every file is matched to the exact calibration on your vehicle and signed off by an operator.

Upload your file →All 7760 coverage

Available solutions

Applicable work for the L21 on this vehicle. The available set firms up once the exact engine and software are known.

Stage 1 Stage 2

Engine variants & ECU software

3 distinct variants for the JOHN DEERE 7760 on the L21 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 13500 473HP
Engine code: 6135HN002
Controller brand: PHOENIX
ECU: L21
Stock power: 473 HP
ECU SW: SW61894A
ECU HW: RE552148

Variant 2

ECU

Catalog engine: 13500 473HP
Controller brand: PHOENIX
ECU: L21
Stock power: 473 HP

Variant 3

ECU

Catalog engine: 13500 473HP
Engine code: 6135HN002
Controller brand: PHOENIX
ECU: L21
Stock power: 473 HP
ECU SW: SW61894D
ECU HW: RE552148

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 7760 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 7760 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.