John Deere 8440
John Deere 8440 Specs
| Manufacturer | John Deere |
| Type | Four-wheel Drive (4WD) tractor |
| Built in | Waterloo, Iowa, USA |
| Original Price (1982) | $64,000 |
John Deere turbocharged diesel 6-cylinder liquid-cooled Engine Detail
| Displacement | 466 ci (7.6 L) |
| Bore/Stroke | 4.5625 x 4.75 inches (116 x 121 mm) |
| Power | 215 hp (160.3 kW) |
| Compression | 15.5:1 |
| Rated RPM | 2100 |
| Idle RPM | 800-2300 |
| Operating RPM | 1500-2100 |
| Firing Order | 1-5-3-6-2-4 |
| Starter Volts | 12 |
| Oil Capacity | 22 qts (20.8 L) |
| Coolant Capacity | 40 qts (37.9 L) |
John Deere 8440 Power
| Engine | 215 hp 160.3 kW |
| PTO (claimed) | 175 hp 130.5 kW |
| Drawbar (tested) | 160.58 hp 119.7 kW |
| PTO (tested) | 179.83 hp 134.1kW |
John Deere 8440 Tires
| Ag front | 18.4-34 |
| Ag rear | 18.4-34 |
Dimensions
| Wheelbase | 125 Inches 317 cm |
| Length | 223.5 Inches 567 cm |
| Operating weight | 26,590 lbs* 12,061 kg |
| Ground clearance | 19.4 Inches 49 cm |
| Front axle (Rack-and-pinion) | 3.937 by 95.8 Inches 99 by 2433 mm |
| Front axle (Rack-and-pinion) | 3.937 by 118.4 Inches 99 by 3007 mm |
| Rack-and-pinion rear axle | 3.937 by 95.8 Inches 99 by 2433 mm |
| Rack-and-pinion rear axle | 3.937 by 118.4 Inches 99 by 3007 mm |
| Front tread | 63 to 130 Inches 160 to 330 cm |
| Rear tread | 63 to 130 Inches 160 to 330 cm |
John Deere 8440 Height
| Hood | 87.1 Inches 221 cm |
| Cab | 126.6 Inches 321 cm |
| Exhaust | 134.5 Inches 341 cm |
PTO performance
| Power at rated engine speed | 179.83 hp 134.1 kW |
| Fuel use | 11.3 gal/hour 42.8 l/hour |
| Drawbar performance | |
| Max power | 160.58 hp 119.7 kW |
| Fuel use | 11.2 gal/hour |
| 42.4 l/hour | |
| Max pull | 25,383 lbs 11,513 kg |
Capacity
| Fuel | 156 gal 590.5 L |
| Hydraulic system | 40 gal 151.4 L |
Hydraulics
| Type | closed center |
| Capacity | 40 gal 151.4 L |
| Valves | 2 |
| Pump flow | 33 gpm 124.9 lpm |
Power Take-off (PTO)
| Rear PTO | independent |
| Rear PTO Type | 1000 |
Tractor hitch
| Rear Type | III |
| Rear lift | 8545 lbs 3876 kg |
8440 Serial Numbers
| 1979 | 1000 |
| 1980 | 2266 |
| 1981 | 3758 |
| 1982 | 5235 |
Electrical
| Ground | negative |
| Charging system | alternator |
| Charging amps | 90 |
| Batteries | 2 |
| Battery CCA | 850 |
| Battery volts | 6 |
Mechanical
| Four-wheel drive | |
| Differential lock | hydraulic front and rear |
| Articulated power steering | |
| Hydraulic wet disc brakes | |
| Cab standard. | |
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