Scania trucks R-Serie All 420
Real standard and upgraded performance figures for the 420 engine in the Scania trucks R-Serie All.
This page covers the 420 as fitted to the Scania trucks R-Serie All — the figures below reflect that specific engine, not the model as a whole.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 420 | 2100 |
| Stage 1 | 500 | 2460 |
| Stage 2 | 540 | 2640 |
- Make
- Scania trucks
- Model
- R-Serie
- Generation
- All
- Engine
- 420
- Fuel type
- diesel
Frequently asked questions
Is Stage 1 tuning safe for the Scania trucks R-Serie All 420?
Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.
How much more power does the 420 make after tuning?
Standard output is 420 HP / 2100 Nm; Stage 1 on this engine typically reaches 500 HP / 2460 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a Scania trucks R-Serie All 420 remap take?
Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.
Can the 420 be reverted to its original file?
Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.