New Holland T9.390 All 8.7 Tier 4A - 355hp

Real standard and upgraded performance figures for the 8.7 Tier 4A - 355hp engine in the New Holland T9.390 All.

These are real standard and Stage 1 (and where available, Stage 2) figures for the New Holland T9.390 All 8.7 Tier 4A - 355hp — not a generic estimate for the model range.

Horsepower (HP)Torque (Nm)
Standard3551745
Stage 13551954
Stage 23552058
Make
New Holland
Model
T9.390
Generation
All
Engine
8.7 Tier 4A - 355hp
Fuel type
diesel

Frequently asked questions

Is Stage 1 tuning safe for the New Holland T9.390 All 8.7 Tier 4A - 355hp?

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 8.7 Tier 4A - 355hp make after tuning?

Standard output is 355 HP / 1745 Nm; Stage 1 on this engine typically reaches 355 HP / 1954 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a New Holland T9.390 All 8.7 Tier 4A - 355hp 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 8.7 Tier 4A - 355hp 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.