John Deere 6420S ECU remapping
5 files available
About remapping
The John Deere 6420S is an agricultural tractor of the 6020 series and accounts for 5 files in our catalogue, dominated by the 4.5 litre engine block. It is a versatile machine for medium-sized farms.
Stage 1 accounts for all 5 files — a completely clean profile with no maintenance work at all. The ECUs are L11, L12, LXX and a Phoenix L12 reference. In agriculture we always work to conservative criteria.
Model highlights
- ›5 Stage 1 files: a completely clean performance profile.
- ›Dominated by the 4.5 litre engine block.
- ›A versatile machine of the 6020 series.
- ›ECUs limited to L11, L12, LXX and a Phoenix L12 reference.
Engines
| 4.5 L | 4 | |
| Otros | 1 |
ECUs
ECU manufacturers
Available services
Remapping services
Stage 1
Optimising the original map with no hardware changes: more power and torque, full reliability.
Why remap with Repromatronic
- ✓More power and torque with engine-safe tuning
- ✓Sharper throttle response and nicer driving
- ✓Potential fuel savings in normal driving
- ✓Files built from the original and 100% reversible
- ✓Made by technicians with thousands of projects behind them
Are you a driver?
Request a free quote for your vehicle and we'll tell you the gains you can expect.
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Log in as a professionalFrequently asked questions
How does this differ from the 6420 entry?
The S is a higher-specification version of the same model. Each has its own entry in our catalogue.
What do you aim for when remapping a tractor?
Sustained pulling capacity and contained fuel consumption per hour of work, which is what matters on a farm.
Does it affect the machine's warranty?
It may affect the manufacturer's cover. We keep the original file so the work can be reversed if needed.