The largest tractor in the AgroStar series was the 8.31, which only shared the name with the other tractors. Essentially, this large tractor was a model of the Deutz-Allis 9100 series, converted to European specifications, and built by the White company in Coldwater, Ohio, USA.

Deutz Agro Star 831 by MTSH

- Simple IC for driver's door and rear window (with sounds)
- Precision Farming Ready
- Rotating beacon (configurable)
- Front flasher (configurable)
- Exhaust smoke changed
- Sound changed --> Farming Dud's - Vassili_k98
- Speed sticker rear window (configuration)
- Engine configurations added (40, 50 and 60 km/h)
- Horn roof (configurable)
- Navigation system (only optically configurable)
- Color selection body
- Color selection rims
- Color selection chassis
- Color selection interior
- Rims and wheel hubs