JOHN DEERE · L21 ECU

JOHN DEERE 5085M L21 tuning files

Everything we work with on the JOHN DEERE 5085M fitted with the L21. The matched variants sit between 85 and 110 HP from the factory. 5 distinct variants are catalogued here. For this platform the dependable path begins with Stage 1 and Stage 2. Each file is tied to the precise software on your car and checked before it goes out.

Upload your file →All 5085M coverage

Available solutions

What we can run on the L21 for this vehicle — the precise options narrow down by engine and software version.

Stage 1Stage 2

Engine variants & ECU software

5 distinct variants for the JOHN DEERE 5085M on the L21 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU
Catalog engine
4500 110HP
Controller brand
PHOENIX
ECU
L21
Stock power
110 HP

Variant 2

ECU
Catalog engine
4500 110HP
Engine code
4045HLV70
Controller brand
PHOENIX
ECU
L21
Stock power
110 HP
ECU SW
SW62134C
ECU HW
RE543423

Variant 3

ECU
Catalog engine
4500 110HP
Engine code
4045HLV70
Controller brand
PHOENIX
ECU
L21
Stock power
110 HP
ECU SW
SW62134D
ECU HW
RE543423

Variant 4

ECU
Catalog engine
4500 85HP
Engine code
4045HLV70
Controller brand
PHOENIX
ECU
L21
Stock power
85 HP
ECU SW
SW63782A
ECU HW
RE551416

Variant 5

ECU
Catalog engine
4500 85HP
Controller brand
PHOENIX
ECU
L21
Stock power
85 HP

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 5085M 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 5085M 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.

JOHN DEERE 5085M L21 ECU Tuning Files | TuningBay