John Deere 6420 VP44 All 4.5 - 110hp

Real standard and upgraded performance figures for the 4.5 - 110hp engine in the John Deere 6420 VP44 All.

These are real standard and Stage 1 (and where available, Stage 2) figures for the John Deere 6420 VP44 All 4.5 - 110hp — not a generic estimate for the model range.

Horsepower (HP)Torque (Nm)
Standard1101
Stage 1132—
Stage 2143-1
Make
John Deere
Model
6420 VP44
Generation
All
Engine
4.5 - 110hp
Fuel type
diesel

Frequently asked questions

Is Stage 1 tuning safe for the John Deere 6420 VP44 All 4.5 - 110hp?

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 - 110hp make after tuning?

Standard output is 110 HP / 1 Nm; Stage 1 on this engine typically reaches 132 HP / 0 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a John Deere 6420 VP44 All 4.5 - 110hp 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 - 110hp 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.