The John Deere 4450 is a 2WD or 4WD row-crop tractor from the 50 series. This tractor was manufactured by the John Deere in Waterloo, Iowa, USA from 1983 to 1988. The JD 4450 tractor is equipped with a 7.6 L six-cylinder diesel engine and one of two transmissions: partial power shift transmission with 16 forward and 6 reverse gears or full power shift transmission with 15 forward and 4 reverse gears.
The John Deere 4450 row-crop tractor used the John Deere engine. It is a 7.6 L, 7,636 cm2, (466.0 cu·in) six-cylinder turbocharged diesel engine with 116.0 mm (4.57 in) of the cylinder bore and 121.0 mm (4.76 in) of the piston stroke. The compression ratio rating is 15.8:1. This engine produced 157.2 PS (115.6 kW; 155.0 HP) at 2,700 rpm of gross output power.
The John Deere 4450 is equipped with power steering, hydraulic wet disc brakes, Sound-Gard cab or four-post Roll-Gard ROPS (optional) and 246.0 liters (65 US gal.; 54.1 Imp. gal) fuel tank.
Following attachments are available for the JD 4450 row-crop tractor:
- John Deere 158 loader
- John Deere 265 loader
- John Deere 280 loader
John Deere 4450 Specifications
| General Specifications | |
| Model | John Deere 4450 |
| Length | 2WD: 3,910 mm (153.9 in) 4WD: 4,160 mm (164.1 in) |
| Width | 2,430 mm (95.7 in) |
| Height | 2,950 mm (116.1 in) |
| Wheel base | 2WD: 2,710 mm (106.7 in) 4WD: 2,670 mm (105.3 in) |
| Weight | 6,985 kg (15,400 lbs) |
| Fuel tank capacity | 246.0 liters (65 US gal.; 54.1 Imp. gal) |
| Battery | 2x6V or 12V |
| Cabin type | Sound-Gard cab standard or four-post Roll-Gard ROPS (optional) |
| Engine | |
| Engine model | John Deere |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 6 |
| Fuel type | Diesel |
| Displacement | 7.6 L, 7,636 cm2, (466.0 cu·in) |
| Bore and stroke | 116.0 mm X 121.0 mm (4.57 in X 4.76 in) |
| Compression ratio | 15.8:1 |
| Horsepower | 157.2 PS (115.6 kW; 155 HP) at 2,700 rpm |
| Starter | Electric |
| Oil capacity: | 17.0 L (18 US. qt, 15 Imp. qt.) |
| Coolant capacity: | 25.6 L (27.1 US. qt, 22.5 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD or 4×4 MFWD 4WD |
| Steering type | Power |
| Brakes | Hydraulic wet disc |
| Transmission model | John Deere Quad-Range |
| Transmission type | Partial power shift with Perma-Clutch wet disc |
| Gears | 16 forward and 6 reverse |
| Speed | Forward: 27.9 kmh (17.3 mph) Reverse: 17.6 (10.9 mph) |
| Transmission oil capacity | 60.6 L (16 US. gal, 13.3 Imp. gal.) |
| Transmission model | John Deere Power Shift |
| Transmission type | Full power shift with Perma-Clutch wet disc |
| Gears | 15 forward and 4 reverse |
| Speed | Forward: 29.2 kmh (18.1 mph) Reverse: 9.7 (6 mph) |
| Transmission oil capacity | 2WD: 39.7 L (10.5 US gal, 8.7 Imp. gal) 4WD: 51.0 L (13.5 US gal, 11.2 Imp. gal) |
| Tires | |
| Front tires | Ag: 10.00-16 |
| Rear tires | Ag: 18.4-38 |
| Three-Point Hitch | |
| Caterogy | IIIN/II |
| Control type | – |
| Lift capacity (at ends) | 2,854 kg (6,293 lbs) 3,364 kg (7,418 lbs) |
| PTO (Power take-off shaft) | |
| Rear PTO type | Independent |
| Rear PTO spped | 540 rpm |
| Hydraulic system | |
| Hydraulic type | Closed center |
| Pressure | 2,277 psi (157 bar) |
| Valves | 2 to 3 |
| Pump flow | 26.5 gpm (100.3 lpm) |
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