John Deere
John Deere 4450
The John Deere 4450 was produced from 1983 to 1988 as part of the 50 Series row-crop tractors. It was the best-selling model of the 50-series line, accounting for 20% of sales. It introduced the Caster/Action front-wheel drive system allowing sharper turns and larger front tires. It features a 7.6L 6-cylinder diesel engine producing 158.2 hp, with transmission options including a 16-speed partial power shift and a 15-speed full power shift. The tractor offers two- or four-wheel drive, hydraulic wet disc brakes, and a Sound-Gard cab. It has a fuel capacity of 65 gallons and a hydraulic system capacity varying by transmission type. The tractor supports various loaders and attachments, with detailed specifications for each loader model.
Power158 hp
Founded1983 - 1988
Model4450
Technical Specifications
Detailed specifications and technical data for John Deere 4450
Power
| Engine | 158.2 hp (118.0 kW) |
|---|---|
| PTO (tested) | 140.43 hp (104.7 kW) |
| PTO (claimed) | 140 hp (104.4 kW) |
| Drawbar (tested) | 120.11 hp (89.6 kW) |
| Drawbar (claimed) | 121 hp (90.2 kW) |
Engine
| Type | John Deere 7.6L 6-cyl diesel |
|---|
Capacity
| Fuel | 65 gal (246.0 L) |
|---|---|
| Hydraulic system Quad-Range | 16.0 gal (60.6 L) |
| Hydraulic system 2WD Power Shift | 10.5 gal (39.7 L) |
| Hydraulic system 4WD Power Shift | 13.5 gal (51.1 L) |
Overview
| Notes | 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. |
|---|---|
| Series | 50 Series |
| Built in | Waterloo, Iowa, USA |
| Category | Row-Crop tractor |
| Original price | $46,670 (1983 Quad-Range ROPS 2WD), $67,009 (1983 Power Shift Cab 4WD) |
| Production years | 1983 - 1988 |
Electrical
| Ground | negative |
|---|---|
| Batteries | 2 |
| Battery volts | 6, Optional 12 |
| Charging amps | 72, 90 with Sound-Gard cab |
| Charging system | alternator |
Hydraulics
| Type | closed center |
|---|---|
| Valves | 2 or 3 |
| Pressure | 2277 psi (157.0 bar) |
| Pump flow | 26.5 gpm (100.3 lpm) |
| Capacity Quad-Range | 16.0 gal (60.6 L) |
| Capacity 2WD Power Shift | 10.5 gal (39.7 L) |
| Capacity 4WD Power Shift | 13.5 gal (51.1 L) |
Mechanical
| Cab | Sound-Gard cab standard. Optional four-post Roll-Gard ROPS. |
|---|---|
| Drive | Two- or four-wheel drive |
| Brakes | Hydraulic wet disc brakes |
| Final drives | inboard planetary |
| Power steering | Yes |
| Differential lock | hydraulic rear |
Attachments
| Loaders | John Deere 158 loader, John Deere 265 loader, John Deere 280 loader |
|---|---|
| 158 Loader | NotesFor use on tractors with two-wheel drive. Weight1771 lbs (803 kg) Rollback14° Dump angle37° Reach dumped28 inches (71 cm) Boom cylinder2.75 inches (6 cm) Bucket widths60 inches (152 cm), 72 inches (182 cm), 84 inches (213 cm), 96 inches (243 cm) Height at pin156 inches (396 cm) Lift capacity3634 lbs (1648 kg) Breakout force4621 lbs (2096 kg) Bucket cylinder2.5 inches (6 cm) Clearance level149 inches (378 cm) Clearance dumped127 inches (322 cm) Bucket capacities0.5 cu yd (0.4 cu m), 0.6 cu yd (0.5 cu m), 0.8 cu yd (0.6 cu m), 0.9 cu yd (0.7 cu m) |
| 265 Loader | NotesFor use on tractors with two-wheel drive. Weight2619 lbs (1187 kg) Rollback43° Reach dumped25.6 inches (65 cm) Boom cylinder3.125 inches (7 cm) Bucket widths61 inches (154 cm), 73 inches (185 cm), 85 inches (215 cm), 97 inches (246 cm) Height at pin157 inches (398 cm) Lift capacity3920 lbs (1778 kg) Breakout force5730 lbs (2599 kg) Bucket cylinder2.75 inches (6 cm) Clearance level150 inches (381 cm) Clearance dumped123 inches (312 cm) |
| 280 Loader | NotesFor use on tractors with four-wheel drive. Weight2795 lbs (1267 kg) Rollback41° Dump angle44° Reach dumped26 inches (66 cm) Boom cylinder3.5 inches (8 cm) Bucket widths85 inches (215 cm), 97 inches (246 cm) Height at pin178 inches (452 cm) Lift capacity3718 lbs (1686 kg) Breakout force5126 lbs (2325 kg) Bucket cylinder3.125 inches (7 cm) Clearance level173 inches (439 cm) Clearance dumped152 inches (386 cm) |
Transmission
| Options | 16-speed partial power shift, 15-speed full power shift |
|---|---|
| Quad-Range | Typepartial power shift Gears16 forward and 6 reverse NotesTractor must be stopped to select one of four ranges. Clutchless power shift between speeds 1-2 and 3-4 in range. A synchronized shift (using clutch) can be made between 2 and 3 in range. ClutchPerma-Clutch wet disc Oil capacity64 qts (60.6 L) |
| Power Shift | Typefull power shift Gears15 forward and 4 reverse NotesOptional transmission. Full (clutchless) power shift can be made between gears, forward and reverse. ClutchPerma-Clutch wet disc Oil capacity 2WD42 qts (39.7 L) Oil capacity 4WD54 qts (51.1 L) |
Tractor hitch
| Control | lower-link draft sensing |
|---|---|
| Rear Type | IIIN/II |
| Rear lift | 6294 lbs (2854 kg), Optional 7418 lbs (3364 kg) |
Dimensions & Tires
| Weight | 12745 to 15400 pounds |
|---|---|
| 2WD Wheelbase | 106.7 inches (271 cm) |
| 4WD Wheelbase | 105.3 inches (267 cm) |
| Ag rear tires | 23.1-34, 16.9-38, 20.8-38, 20.8R38, 18.4-42, 18.4R42 |
| Rear tire 2WD | 18.4-38 |
| Rear tire 4WD | 18.4-38 |
| Front tire 2WD | 10.00-16 |
| Front tire 4WD | 14.9-26 |
Power Take-off (PTO)
| Clutch | hydraulic wet disc |
|---|---|
| Rear PTO | independent |
| Engine RPM | 540@2200, 1000@2200 |
| Rear PTO Type | 540/1000 |
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