TunerPro maps for Claas 4.5L ecu Phoenix L21/L22/L23

claas arion 530 john deere engine

Claas 4.5L Phoenix L21/L22/L23 tuning maps.

claas arion 530 john deere engine

Claas tractors with engine control unit Phoenix L21, L22 and L23 are now supported! Engine supported is 4.5L.

Supported Claas Arion 530, 540 and 550.

Through the definition files, the software TunerPro identifies the engine working parameters which allow to obtain the maximum power and torque without affecting the degree of reliability.

Please note: the maps listed may not be present in all vehicles because of the different software update and calibration numbers.


Prices (70 euro) and supported vehicles are available in the main tractors bin definition files area.

Dyno Tests

Example of Stage1 on Claas Arion 530: +30hp / +150Nm

TunerPro available maps

  • Torque: torque reserve, maximum engine torque value.
  • Injection: base injection limitation, injection quantity limitation, conversion of injection volume to injection time.
  • Boost: demanded boost pressure.
  • Rail Pressure: rail pressure setpoint base, maximum rail pressure setpoint.
claas tractors phoenix l21 remap using tunerpro

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