There was 2 different model Years:
John Deere 4440 Power Engine (gross)162.3 hp
Engine (net)152.9 hp
PTO (claimed)134.1 hp
| 1977 - 1984 |
| 4040 Series |
| Row-Crop tractor |
| 1978 - 1982 |
| Iron Horses Series |
| Row-Crop tractor
Variants 4440 row-crop 4440 Hi-crop high clearance John Deere 4440 Power Drawbar (claimed) 112 hp PTO (claimed) 130 hp Drawbar (tested) 112.69 hp PTO (tested) 130.58 hp |