Valtra N121 ECU remapping
7 files available
About remapping
The Valtra N121 is an agricultural tractor and accounts for 7 files in our catalogue, entirely the 4.4 litre engine block with a 133 hp rating identified. It is a versatile mid-power machine from the Nordic manufacturer.
Stage 1 accounts for all 7 files — a completely clean profile with no maintenance work at all. The ECUs are EDC7UC31 and EDC7. In agriculture we always work to conservative criteria.
Model highlights
- ›7 Stage 1 files: a completely clean performance profile.
- ›Entirely the 4.4 litre engine block.
- ›A versatile mid-power machine for medium-sized farms.
- ›ECUs limited to EDC7UC31 and EDC7.
Engines
| 4.4 l | 2 | |
| 4.4D | Turbo-Diesel | 2 |
| 133 | Turbo-Diesel | 1 |
| 4.4 | 1 | |
| 4.4 L | 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 N123?
They share the 4.4 litre block at different output ratings and ECU generations. Each has its own entry.
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.