Production | |
| Manufacturer: | John Deere |
| Type: | Row-Crop tractor |
| Factory: | Waterloo, Iowa, USA |
| Original price: | $54,000 (1988 ) |
| The John Deere 4450 was the best-selling model of the entire 50-series line of tractors. The 4450 alone accounted for 20% of sales in the line. John Deere introduced its Caster/Action front-wheel drive system on these tractors. By enabling the tractors' front wheels to angle up to 13-degrees, sharper turn angles and larger front tires could be used. | |
John Deere 4450 Power | |
| Drawbar (claimed): | 121 hp 90.2 kW |
| PTO (claimed): | 140 hp 104.4 kW |
| Drawbar (tested): | 120.11 hp 89.6 kW |
| PTO (tested): | 140.43 hp 104.7 kW |
Mechanical | |
| Chassis: | 4x2 2WD |
| 4x4 MFWD 4WD | |
| Final drives: | inboard planetary |
| Differential lock: | hydraulic rear |
| Steering: | power |
| Brakes: | hydraulic wet disc |
| Cab: | Sound-Gard cab standard. Optional four-post Roll-Gard ROPS. |
| Transmissions: | 16-speed partial power shift |
| 15-speed full power shift | |
Capacity | |
| Fuel: | 65 gal 246.0 L |
| Hydraulic system: | 10.5 gal 39.7 L (2WD Power Shift) |
| 13.5 gal 51.1 L (4WD Power Shift) | |
| 16.0 gal 60.6 L (Quad-Range) | |
Hydraulics | |
| Type: | closed center |
| Capacity: | 10.5 gal 39.7 L (2WD Power Shift) |
| 13.5 gal 51.1 L (4WD Power Shift) | |
| 16.0 gal 60.6 L (Quad-Range) | |
| Pressure: | 2277 psi 157.0 bar |
| Valves: | 2 or 3 |
| Pump flow: | 26.5 gpm 100.3 lpm |
Tractor hitch | |
| Rear Type: | IIIN/II |
| Control: | lower-link draft sensing |
| Rear lift: | 6,294 lbs 2854 kg |
| 7,418 lbs 3364 kg *Optional | |
Power Take-off (PTO) | |
| Rear PTO: | independent |
| Clutch: | hydraulic wet disc |
| Rear RPM: | 540/1000 |
| Engine RPM: | 540@2200 1000@2200 |
4450 Serial Numbers | |
| Location: | Serial number plate on rear of tractor. |
| 1983: | 1000 |
| 1984: | 11001 |
| 1985: | 18001 |
| 1986: | 22001 |
| 1987: | 24001 |
| 1988: | 26001 |
| 1989: | 31001 |
Electrical | |
| Ground: | negative |
| Charging system: | alternator |
| Charging amps: | 72 |
| 90*With Sound-Gard cab | |
| Batteries: | 2 |
| Battery volts: | 6 |
| 12*Optional | |
Engine Detail | |
| John Deere | |
| turbocharged diesel | |
| 6-cylinder | |
| liquid-cooled | |
| Displacement: | 466 ci 7.6 L |
| Bore/Stroke: | 4.56x4.75 inches 116 x 121 mm |
| Air cleaner: | dry |
| Compression: | 15.8:1 |
| Rated RPM: | 2200 |
| Firing order: | 1-5-3-6-2-4 |
| Starter volts: | 12 |
| Oil capacity: | 18 qts 17.0 L |
| Coolant capacity: | 27 qts 25.6 L |
Dimensions | |
| 2WD Wheelbase: | 106.7 inches 271 cm |
| 4WD Wheelbase: | 105.3 inches 267 cm |
| 2WD Length: | 154.1 inches 391 cm |
| 4WD Length: | 164.1 inches 416 cm |
| Width: | 96 inches 243 cm |
| 109 inches 276 cm (optional axle) | |
| 119 inches 302 cm (optional axle) | |
| Height: | 116.5 inches 295 cm |
| Shiping weight: | 12745 lbs 5781 kg |
| Operating weight: | 15400 lbs 6985 kg *Two-wheel drive tractor with cab and Power Shift. |
| Ground clearance: | 15.75 inches 40 cm |
| Rear axle: | Rack-and-pinion: 3.62 by 96 inches 91 by 2438 mm |
| Rear axle: | Rack-and-pinion: 3.62 by 109 inches 91 by 2768 mm |
| Rear axle: | Rack-and-pinion: 3.62 by 113 inches 91 by 2870 mm |