Case Steiger All 420 12.9 Tier 4B 425hp

Real standard and upgraded performance figures for the 420 12.9 Tier 4B 425hp engine in the Case Steiger All.

Standard vs. upgraded performance for the Case Steiger All 420 12.9 Tier 4B 425hp, based on real files we've processed for this exact engine.

Horsepower (HP)Torque (Nm)
Standard4251
Stage 14651
Stage 24851
Make
Case
Model
Steiger
Generation
All
Engine
420 12.9 Tier 4B 425hp
Fuel type
diesel

Frequently asked questions

Is Stage 1 tuning safe for the Case Steiger All 420 12.9 Tier 4B 425hp?

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 12.9 Tier 4B 425hp make after tuning?

Standard output is 425 HP / 1 Nm; Stage 1 on this engine typically reaches 465 HP / 1 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Case Steiger All 420 12.9 Tier 4B 425hp 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 12.9 Tier 4B 425hp 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.