Fendt 939 Generations
The Fendt 939 was built across 1 generations we cover, each with a different engine lineup — pick yours to keep the numbers on the next pages accurate.
The 1 Fendt 939 generations below each open onto their own engine list. Chassis code or build year from the registration document is usually enough to tell them apart if you're not certain.
Frequently asked questions
Do all Fendt 939 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 939 generations?
Not meaningfully — most Fendt 939 files across generations are handled within a few hours of upload, regardless of which ECU the generation uses.
Is my Fendt 939 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 939 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.