J40VG6HD — Denso SH7058 ECU, Hyundai HD78
Original (stock) ECU file for the Hyundai HD78 — 4900 150HP, Denso SH7058 controller, hardware J40VG6HD, software A121. Unmodified factory read, usually within 3 hours after we confirm your ECU numbers.
Identification
| Vehicle | Hyundai HD78 |
|---|---|
| Engine | 4900 150HP |
| ECU | Denso SH7058 |
| Hardware number | J40VG6HD |
| Software number | A121 |
| Software upgrade | 5200039133 |
| Calibration | J40VG6HD_A121_5200039133 |
Compatibility
In our archive this exact read is recorded for the Hyundai HD78 with the 4900 150HP engine. We hold 15 other reads for this model — see “Related files” below. The Denso SH7058 controller appears 22 times across the catalogue.
Cross references
Other hardware carrying software A121:
What you get
A full, unmodified read of the Denso SH7058 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 |
|---|---|---|
| H49_5923 | H49_5923 | — |
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 Hyundai HD78?
Compare the hardware number (J40VG6HD) and the software number (A121) 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 Denso SH7058 original for €25?
An unmodified factory read of the Denso SH7058 (HW J40VG6HD, SW A121, upgrade 5200039133) 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 Denso SH7058 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.