John Deere 6125R ECU remapping
19 files available
About remapping
The John Deere 6125R is an agricultural tractor of the 6R series and accounts for 19 files in our catalogue, entirely the 4.5 litre engine block. It is a versatile mid-power machine widely used on medium-sized farms.
Stage 1 accounts for all 19 files — one of the purest profiles among our agricultural machines — with single DPF and EGR entries alongside. The ECUs are John Deere's own references: L21, L23, L2X and LXX.
Model highlights
- ›19 Stage 1 files: one of the purest profiles among our agricultural machines.
- ›Entirely the 4.5 litre engine block.
- ›A versatile mid-power machine for medium-sized farms.
- ›ECUs with John Deere's own references: L21, L23, L2X and LXX.
Engines
| 4.5 L | 15 | |
| 4.5 | Turbo-Diesel | 2 |
| 4.5D | Turbo-Diesel | 1 |
| 4.5L | 1 |
ECUs
ECU manufacturers
Available services
Remapping services
Stage 1
Optimising the original map with no hardware changes: more power and torque, full reliability.
DPF off
Particulate filter solution: no more regenerations or blockage warnings.
EGR off
EGR valve management to reduce soot issues and improve response.
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
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.
How does this differ from the 5100R?
They share the same 4.5 litre block but belong to different series with different equipment. Each has its own entry in our catalogue.
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.