Case Quadtrac All 620 12.9 Tier 4B 666hp

Real standard and upgraded performance figures for the 620 12.9 Tier 4B 666hp engine in the Case Quadtrac All.

These are real standard and Stage 1 (and where available, Stage 2) figures for the Case Quadtrac All 620 12.9 Tier 4B 666hp — not a generic estimate for the model range.

Horsepower (HP)Torque (Nm)
Standard6661
Stage 17421
Stage 27801
Make
Case
Model
Quadtrac
Generation
All
Engine
620 12.9 Tier 4B 666hp
Fuel type
diesel

Frequently asked questions

Is Stage 1 tuning safe for the Case Quadtrac All 620 12.9 Tier 4B 666hp?

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 620 12.9 Tier 4B 666hp make after tuning?

Standard output is 666 HP / 1 Nm; Stage 1 on this engine typically reaches 742 HP / 1 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Case Quadtrac All 620 12.9 Tier 4B 666hp 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 620 12.9 Tier 4B 666hp 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.