4921776 — Motorola CM850 ECU, Nissan ATLEON
Original (stock) ECU file for the Nissan ATLEON — 4500 185HP, Motorola CM850 controller, hardware 4921776, software X185No.12. Unmodified factory read, usually within 3 hours after we confirm your ECU numbers.
Identification
| Vehicle | Nissan ATLEON |
|---|---|
| Engine | 4500 185HP |
| ECU | Motorola CM850 |
| Hardware number | 4921776 |
| Software number | X185No.12 |
Compatibility
The same Motorola CM850 with part number 4921776 is also fitted to these vehicles / engines in our archive:
| Vehicle | Engine | Software |
|---|---|---|
| Nissan ATLEON (this page) | 4500 185HP | X185No.12 |
| Cummins ISBE4 | 6700 277HP | P90018.09 |
| Cummins ISF | 9000 400HP | — |
| Cummins QSB5.9 | 5900 380HP | Z90092.05 |
| Cummins QSB5.9 | 5900 330HP | Z90100.03 |
| Cummins QSD | 8700 175HP | Z91254.01 |
| DAF LF | 150HP | P90007 |
| Ford Trucks CARGO | 320HP · 6C u04D083 | W902SY6 |
| New Holland T8010 | 8300 224HP | — |
| Nissan ATLEON | 4500 180HP | — |
Cross references
Other software levels recorded on hardware 4921776:
What you get
A full, unmodified read of the Motorola CM850 as it left the factory — the binary file produced by the original reading tool, no checksum or map changes. Use it to restore a stock calibration after a failed flash or a bad tune, or as the reference file for a tuning job. One read is stored for this identification.
| Archive reference | Driver | Damos / A2L |
|---|---|---|
| ATL_80E9 | ATL_80E9 | — |
Delivery: released to your account and announced by email usually within 3 hours, within 24 hours on business days, once we confirm the read matches the numbers on this page.
Questions about this file
Is this original file compatible with my Nissan ATLEON?
Compare the hardware number (4921776) and the software number (X185No.12) with the identification your tool reads from the ECU. The software number must match; a different hardware revision usually means a different file. Motorola CM controllers (Cummins, DAF PACCAR, Scania EMS) are identified by the CM model and a calibration/ECM code; many are read via the diagnostic connector with the engine harness powered.
What exactly do I receive when I buy the Motorola CM850 original for €25?
An unmodified factory read of the Motorola CM850 (HW 4921776, SW X185No.12) as stored in our archive — a binary file in the format produced by the original reading tool. No modifications, no checksum changes: it is meant to restore the ECU to its stock calibration or to serve as a reference for a tuning job.
How and when is the file delivered?
After payment we confirm the read matches the numbers on this page and release it to your account, with an email notification — usually within 3 hours, within 24 hours on business days. If your ECU reports different numbers, tell us with the order and we look for the right file before delivering anything.
Can you also tune this Motorola CM850 or remove EGR / AdBlue / DPF?
Yes — upload your own read through the tuning service and choose the modifications; every tuning job is quoted individually before you pay. The original on this page is useful as a backup before any modification is flashed.