Fendt 409 Generations
Engine options and ECU hardware change between Fendt 409 generations, which is why the catalogue splits here. Choose the one that matches your car.
Continue by selecting your Fendt 409 generation from the 1 listed below. The engine list on the next page is specific to whichever one you pick.
Frequently asked questions
Do all Fendt 409 generations support the same tuning stages?
No — available stages depend on the specific engine in that generation, not the model as a whole. Once you pick your engine, its performance page shows exactly which stages apply.
Does turnaround time differ between Fendt 409 generations?
Not meaningfully — most Fendt 409 files across generations are handled within a few hours of upload, regardless of which ECU the generation uses.
Is my Fendt 409 generation supported for safe remapping?
If it's listed in our catalogue, yes — every engine in every generation shown here has been worked before, with stage limits set to stay within that engine's mechanical margins.
How do I know which Fendt 409 generation I have?
Check your vehicle registration document for the build year, or look up the chassis code — both narrow it down to one of the generations listed here.