Claas Arion ECU Remap & Tuning
Power
100 HP / 75 kW
Version
420 - 4.5l - 100hp - tier4f
Vehicle
- Make
- Claas
- Model
- Arion
Powertrain
- Engine
- 420 4.5l Tier4f
- Stock power
- 100 HP / 75 kW
- Stock torque
- 435 Nm
Explore the Claas Arion as a working agricultural machine: compare factory output with the available tuned figures, then review the ECU access method and farm-focused tuning choices.
| Stock | Tuned | Gain | |
|---|---|---|---|
| Power (HP) | 100 | 130 | +30 (+30%) |
| Torque (Nm) | 435 | 550 | +115 (+26%) |
Available tuning options
Performance 2
Tune
Towing | PowerVGT delete
Emissions & anti-pollution 4
DPF off We take no responsibility for legal actions as a result of disabling a DPF system, this may be illegal in your country. You must perform a forced regeneration or reset all DPF levels before reading the ECU. DPF must be removed after.
EGR off We take no responsibility for legal actions as a result of disabling a EGR system, this may be illegal in your country.
AdBlue / SCR off We take no responsibility for legal actions as a result of disabling a SCR / ADBLUE / DEF system, this may be illegal in your country.
DTC You must clear codes before writing tuned file.
Driveability & comfort 2
Speed limit raised We take no responsibility for legal actions as a result of a raised speed limiter, this may be illegal in your country.
Exhaust flap off
Services, files & hardware 2
Send us your ECU Includes standard bench fee processing for 1 ECU and NZ return freight. Include a send in ECU form fully filled out with your ECU.
Return file to original
Dyno chart
Original HP
Tuned HP
Original Torque
Tuned Torque
Original
Tuned
* Estimated curve, illustrative only, not a measured dyno. Actual values will vary.
Installation and process
Tell us how the machine works today and where it needs improvement: heavy draft work, transport, PTO load, harvesting or fuel efficiency. After the exact engine and ECU are confirmed, the original file is read through the supported OBD, Bench or Boot method. The calibration is prepared for that tractor or agricultural machine, written back and checked under its normal working load.
Support, safety, and trust
Agricultural engines spend long periods under sustained load, so a useful calibration is about controlled torque delivery and dependable operation, not a peak dyno number alone. Cooling system condition, servicing, fuel quality, tyres, ballast and implement load can all change the result. Published figures are a guide for the listed configuration and final suitability is confirmed from the machine and ECU details.
Frequently asked questions
Can the Claas Arion be tuned?
This machine appears in the Eco Tractor Tune agricultural catalogue. We confirm the fitted ECU, software version and access method before tuning because equipment can vary by market, model year and factory specification.
What gains can I expect?
The listed configuration shows a potential increase of up to +30 HP and +115 Nm. Usable results in the field depend on engine condition, fuel, implement load and the way the machine is operated.