The 644 was produced from 1974 to 1980 in Neuss (GER). From 1976, these tractors come with an "Comfort 2000" Cabin from plants.

Horsepower: 60 hp
max Speed: 30 km/h
Lifetime: 3340 h
Fuel Capacity: 74 ltr
Price: 14.800 - 27.125 €
Maintenance: 76 € / day

Changelog:
(Version 2.3.0.0):
- indoorCam entries optimized
- beacon light fixed
- rim textures reworked
- FL Attachment colour coice added (black, red of grey)

(Version 2.3.2.0):
- radio and cb-radio as selectable configuration added
- the front axle now remains movable in a hitched front loader
- entries of cb-radio and radio configurations fixed
- dirt volume at interieur textures reduced
- numberplate textures reworked