RE503340 — Bosch ECU, John Deere 8400
Original (stock) ECU file for the John Deere 8400 — 7600 270HP, Bosch controller, hardware RE503340, software SW001641. Unmodified factory read, usually within 3 hours after we confirm your ECU numbers.
Identification
| Vehicle | John Deere 8400 |
|---|---|
| Engine | 7600 270HP |
| Engine code | 6076HRW34 |
| ECU | Bosch |
| Hardware number | RE503340 |
| Software number | SW001641 |
Compatibility
In our archive this exact read is recorded for the John Deere 8400 with the 7600 270HP engine (6076HRW34). We hold 7 other reads for this model — see “Related files” below.
Cross references
Other software levels recorded on hardware RE503340:
What you get
A full, unmodified read of the Bosch 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 |
|---|---|---|
| J76_CA00 | J76_CA00 | — |
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 John Deere 8400?
Compare the hardware number (RE503340) and the software number (SW001641) with the identification your tool reads from the ECU. The software number must match; a different hardware revision usually means a different file. Identify the controller by the hardware and software numbers printed on its label or reported by your reading tool.
What exactly do I receive when I buy the Bosch original for €25?
An unmodified factory read of the Bosch (HW RE503340, SW SW001641) 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 Bosch 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.