Variant 1
ECU- Catalog engine
- 5900 380HP
- Controller brand
- MOTOROLA
- ECU
- CM850
- Stock power
- 380 HP
- ECU SW
- Z90092.05
- ECU HW
- 4921776
CUMMINS · CM850 ECU
CUMMINS QSB5.9 CM850 tuning files
Tuning file coverage for the CUMMINS QSB5.9 running the CM850 ECU. Across the matched variants stock power runs from 330 to 380 HP. 2 distinct variants are catalogued here. We start conservative here — Stage 1 and Stage 2 are the dependable baseline. We match the right calibration to your exact software and validate it before delivery.
Available solutions
Applicable work for the CM850 on this vehicle. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
2 distinct variants for the CUMMINS QSB5.9 on the CM850 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 5900 330HP
- Controller brand
- MOTOROLA
- ECU
- CM850
- Stock power
- 330 HP
- ECU SW
- Z90100.03
- ECU HW
- 4921776
Related vehicles
Other vehicles built on the CM850 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the CUMMINS QSB5.9 on the CM850?
Stage 1, Stage 2. The exact set depends on the specific engine and software version.
Do you cover the CM850 ECU software on this model?
Yes — the CUMMINS QSB5.9 on the CM850 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.
How is the file delivered?
Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.