The John Deere 4040 is a 2WD or 4WD row-crop tractor from the Iron Horses series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 1978 to 1982. The John Deere 4040 is equipped with a 6.6 L (404.0 cu·in) six-cylinder diesel engine and one of three transmissions: a partial power shift transmission with 16 forward and 6 reverse gears, a partially synchronized transmission with 8 forward and 2 reverse gears (13 forward and 5 reverse with creeper) or a full powershift transmission with 8 forward and 4 reverse gears.
The JD 4040 row-crop tractor used the John Deere engine. It is a 6.6 L, 6,620 cm2, (404.0 cu·in) six-cylinder natural aspirated diesel engine with 108.0 mm (4.25 in) of the cylinder bore and 121.0 mm (4.76 in) of the piston stroke. The compression ratio rating is 16.7:1. This engine produced 101.5 PS (74.6 kW; 100.0 HP) of output power.
The John Deere 4040 is equipped with power steering, differential hydraulic wet disc brakes, Sound-Gard Cab, and 140.0 liters (37 US gal.; 30.8 Imp. gal) fuel tank.
Following attachments are available for the JD 4040 row-crop tractor:
- John Deere 148 loader
- John Deere 158 loader
John Deere 4040 Specifications
| General Specifications | |
| Model | John Deere 4040 |
| Length | 3,890 mm (153.1 in) |
| Width | 2,430 mm (95.7 in) |
| Height (Cab) | 2,780 mm (109.4 in) |
| Wheel base | 2,640 mm (103.9 in) |
| Weight (operating) | 4,760 kg (10,494 lbs) |
| Fuel tank capacity | 140.0 liters (37 US gal.; 30.8 Imp. gal) |
| Battery | Two 6V, CCA: 850A |
| Cabin type | Sound-Gard Cab |
| Engine | |
| Engine model | John Deere |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 6 |
| Fuel type | Diesel |
| Displacement | 6.6 L, 6,620 cm2, (404.0 cu·in) |
| Bore and stroke | 108.0 mm X 121.0 mm (4.25 in X 4.76 in) |
| Compression ratio | 16.7:1 |
| Horsepower | 101.5 PS (74.6 kW; 100 HP) at rpm |
| Starter | Electric |
| Oil capacity: | 16.1 L (17 US. qt, 14.2 Imp. qt.) |
| Coolant capacity: | 22.7 L (24 US. qt, 20 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD or 4×4 MFWD 4WD |
| Steering type | Power |
| Brakes | Differential hydraulic wet disc |
| Differential lock | Pedal-actuated hydraulic |
| Transmission model | John Deere Quad-Range |
| Transmission type | Partial power shift |
| Gears | 16 forward and 6 reverse |
| Speed | Forward: 26.9 kmh (16.7 mph) Reverse: 16.9 (10.5 mph) |
| Transmission oil capacity | 58.7 L (15.5 US. gal, 12.9 Imp. gal.) |
| Transmission model | John Deere Syncro-Range |
| Transmission type | Partially synchronized |
| Gears | 8 forward and 2 reverse |
| Speed | Forward: 28.2 kmh (17.5 mph) Reverse: 10.0 (6.2 mph) |
| Transmission oil capacity | 58.7 L (15.5 US. gal, 12.9 Imp. gal.) |
| Transmission model | John Deere Powershift |
| Transmission type | Full power shift |
| Gears | 8 forward and 4 reverse |
| Speed | Forward: 28.2 kmh (17.5 mph) Reverse: 8.8 (5.5 mph) |
| Transmission oil capacity | 51.1 L (13.5 US. gal, 11.2 Imp. gal.) |
| Tires | |
| Front tires | Ag: 9.5L-15 |
| Rear tires | Ag: 15.5-38 |
| Three-Point Hitch | |
| Caterogy | II/I |
| Control type | – |
| Lift capacity (at ends) |
1,957 kg (4,316 lbs) 2,447 kg (5,395 lbs) |
| PTO (Power take-off shaft) | |
| Rear PTO type | Independent |
| Rear PTO speed | 540/1,000 rpm |
| Hydraulic system | |
| Hydraulic type | Closed center |
| Valves | 1 or 2 |
| Pump flow | 23.0 gpm (87.1 lpm) |