John Deere 6420 All 4.5 CR - 120hp
Real standard and upgraded performance figures for the 4.5 CR - 120hp engine in the John Deere 6420 All.
Standard vs. upgraded performance for the John Deere 6420 All 4.5 CR - 120hp, based on real files we've processed for this exact engine.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 120 | 480 |
| Stage 1 | 144 | 538 |
| Stage 2 | 156 | 567 |
- Make
- John Deere
- Model
- 6420
- Generation
- All
- Engine
- 4.5 CR - 120hp
- Fuel type
- diesel
Frequently asked questions
Is Stage 1 tuning safe for the John Deere 6420 All 4.5 CR - 120hp?
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 4.5 CR - 120hp make after tuning?
Standard output is 120 HP / 480 Nm; Stage 1 on this engine typically reaches 144 HP / 538 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a John Deere 6420 All 4.5 CR - 120hp 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 4.5 CR - 120hp 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.