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Agriculture · Forage Harvesters

John Deere 6850 tuning file

12.5 L · 353 kW / 473 hp · Tier 2 · ECU PHOENIX L4

Stage 1, DTC and emission-related tuning files for the John Deere 6850, read and written with New Genius, Trasdata, KESS3. Exclusively for dealers and tuning professionals.

Machine data

Brand
John Deere
Model
6850
Series / type
Forage Harvesters
Division
Agriculture
Engine
12.5 L
Rated power
353 kW · 480 PS · 473 hp
Emission stage
Tier 2
ECU
PHOENIX L4
Engine code
6125HZ001

KESS3 / Powergate

YearVersionECUKESS3PowergateFunctions
20026850 12.5L I6Engine 6125HZ001Phoenix L4OBDBOOT–ReadClone

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
1999Tier 2PHOENIX L4FLASH_0196supported · plugin 463
1999Tier 2PHOENIX L4FLASH_0196supported · plugin 463

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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