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Agriculture · 400 Vario

Fendt 400 VARIO 409 tuning file

3.8 L · 64 kW / 86 hp · Tier 4 B · ECU Fendt Variotronic

Stage 1, DTC and emission-related tuning files for the Fendt 400 VARIO 409, read and written with Trasdata, KESS3. Exclusively for dealers and tuning professionals.

Machine data

Brand
Fendt
Model
400 VARIO 409
Series / type
400 Vario
Division
Agriculture
Engine
3.8 L
Rated power
64 kW · 87 PS · 86 hp
Emission stage
Tier 4 B
ECU
Fendt Variotronic

KESS3 / Powergate

YearVersionECUKESS3PowergateFunctions
2003409 3.8L I4Fendt VariotronicST10C167BOOT–Clone

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 4 B–not listedsupported · plugin 811

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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