ECU Remap John Deere 6420 4.5 CR - 120 hp

Yes. At Recuauto all remaps are personalised and verified on our own 4x4 dyno. The original map is always saved and can be restored at any time. Over 10 years of experience with professional Kess3 equipment.

The remapping of the John Deere 6420 4.5 CR - 120 hp takes 1–3 hours, including original ECU read, map remap and dyno verification. There is no need to leave the vehicle for several days.

Remapping may affect the official warranty if the dealer detects it and links it to a fault. We always save the original map and can restore it before any dealer visit.

If you maintain the same driving style, the better use of torque at low rpm can even reduce fuel consumption. If you drive taking advantage of the extra power, consumption will increase. Most customers in mixed use do not notice a significant increase.

Yes. We always save the manufacturer's original map and can restore the factory software at any time.

Remapping is legal for track or private use. For road use, if it exceeds the approved limits, the vehicle must pass an equivalent roadworthiness test. We advise you on the applicable regulations for your case.

With Stage 1, the John Deere 6420 4.5 CR - 120 hp goes from 120 hp and 480 Nm to 144 hp and 538 Nm (+24 hp / +58 Nm, 20.0% more power). Also: better throttle response, flatter and more progressive torque curve, and in diesel engines a notable improvement at low rpm. Check your model in our power calculator.

No specific additional maintenance is required. We do recommend that the vehicle is in good mechanical condition beforehand: timing belt up to date, clean injectors, turbo without play. A well-maintained engine makes better use of tuning.