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Agriculture · Forage Harvesters

John Deere 7850 15L QSX15 tuning file

507 kW / 680 hp · Tier 2 · ECU MOTOROLA CM570

Stage 1, DTC and emission-related tuning files for the John Deere 7850 15L QSX15, read and written with New Genius, KESS3. Exclusively for dealers and tuning professionals.

Machine data

Brand
John Deere
Model
7850 15L QSX15
Series / type
Forage Harvesters
Division
Agriculture
Engine
–
Rated power
507 kW · 689 PS · 680 hp
Emission stage
Tier 2
ECU
MOTOROLA CM570
Engine code
QSX 15

KESS3 / Powergate

YearVersionECUKESS3PowergateFunctions
20087850 15.0L I6Engine QSX 15Motorola CM570OBD–Read

Source: Alientech KESS3 / Powergate vehicle list, 14.10.2026. How KESS3 is used on off-highway machines.

New Genius / New Trasdata

YearEmission stageECUNew Genius (OBD)New Trasdata
–Tier 2MOTOROLA CM570FLASH_0220not listed

Source: Dimsport application list, release 06.10.2026. Emission stages are shortened as in that list.

Other tools

AutoTuner
ECU family not listedMatched by ECU name against the AutoTuner compatibility list of 13.10.2026. Support differs by brand, so check before quoting. AutoTuner on agricultural and construction machines.

Machine or brand not listed?

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