John Deere 4450 Row-Crop Tractors Specifications
Engine
The engine is a John Deere turbocharged diesel 6-cylinder liquid-cooled with a displacement of 466ci / 7.6L and bore/stroke of 4.56x4.75inches / 116x 121mm. It has a power output of 158.2hp / 118.0kW and a dry air cleaner. The compression ratio is 15.8:1 and the rated rpm is 2200. The engine has a firing order of 1-5-3-6-2-4, a starter voltage of 12, and an oil capacity of 18qts / 17.0L. The coolant capacity is 27qts / 25.6L.
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Find Suppliers & Request SamplesTransmission
The transmission details are not specified in the . However, the John Deere 4450 model is known to have a 15-speed power shift transmission with a maximum forward speed of 18.6 mph and a maximum reverse speed of 7.5 mph. The transmission has a hydraulic wet disc clutch and a synchronized shifting system. It also has a differential lock and a power take-off (PTO) system.
Brakes
The brakes are hydraulic wet disc brakes with a sound-gard cab standard. The John Deere 4450 model has two- or four-wheel drive and power steering. The final drive is an inboard planetary system and the differential lock is hydraulic rear. The brake system is reliable and provides excellent stopping power. The brake pedal is responsive and easy to modulate. The brake system is also easy to maintain and repair.
Steering
The steering is a John Deere 7.6L 6-cylinder diesel system. It provides excellent maneuverability and control. The steering system is responsive and easy to use. The steering wheel is comfortable and provides good grip. The steering system is also durable and reliable. It requires minimal maintenance and is easy to repair if needed.
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Find Suppliers & Request SamplesCommon Problems
Users have reported issues with the power shift transmission, particularly with the shifting system. Some users have also reported problems with the hydraulic system, such as leaks and low pressure. Another common issue is with the electrical system, particularly with the alternator and starter. Some users have also reported problems with the fuel system, such as clogged filters and fuel injection issues. Finally, some users have reported issues with the cab, such as leaks and poor insulation.
What Users Like
Users appreciate the power and performance of the John Deere 4450 model. The engine provides excellent power and torque, making it suitable for a wide range of applications. Users also like the comfortable and spacious cab, which provides good visibility and insulation. The hydraulic system is also praised for its reliability and ease of use. Finally, users appreciate the durability and longevity of the tractor, which is known to last for many years with proper maintenance.
Techincal Specifications
Engine Detail | |
| Description | John Deere turbocharged diesel 6-cylinder liquid-cooled |
| Displacement | 466ci / 7.6L |
| Bore/stroke | 4.56x4.75inches / 116x 121mm |
| Power | 158.2hp / 118.0kW |
| Air Cleaner | dry |
| Compression | 15.8:1 |
| Rated Rpm | 2200 |
| Firing Order | 1-5-3-6-2-4 |
| Starter Volts | 12 |
| Oil Capacity | 18qts / 17.0L |
| Coolant Capacity | 27qts / 25.6L |
Engine | |
| Description | John Deere 7.6L 6-cyl diesel |
Mechanical | |
| Description | Two- or four-wheel drive Power steering Hydraulic wet disc brakes/Sound-Gard cab standard. Optional four-post Roll-Gard ROPS |
| Final Drive | inboard planetary |
| Differential Lock | hydraulic rear |
Tires | |
| 2wd Standard Tires (ag) | Front: 10.00-16. Rear: 18.4-38 |
| 4wd Standard Tires (ag) | Front: 14.9-26. Rear: 18.4-38 |
| Ag Rear | 23.1-34 / 16.9-38 / 20.8-38 / 20.8R38 / 18.4-42 / 18.4R42 |
Dimensions And Tires | |
| 2wd Wheelbase | 106.7inches / 271cm |
| 4wd Wheelbase | 105.3inches / 267cm |
| Weight | 12745 to 15400 pounds |
| Front Tire | 10.00-16 |
| 2wd Rear Tire | 18.4-38 |
Serial Numbers | |
| 1989 | 31001 |
Capacity | |
| Fuel | 65gal / 246.0L |
| Hydraulic System | 10.5gal (2WD Power Shift) / 39.7L 13.5gal (4WD Power Shift) / 51.1L 16.0gal (Quad-Range) / 60.6L |
Hydraulics | |
| Type | closed center |
| Capacity | 10.5gal (2WD Power Shift) / 39.7L 13.5gal (4WD Power Shift) / 51.1L 16.0gal (Quad-Range) / 60.6L |
| Pressure | 2277psi / 157.0bar |
| Valve | 2 or 3 |
| Pump Flow | 26.5gpm / 100.3lpm |
Tractor Hitch | |
| Rear Type | IIIN/II |
| Control | lower-link draft sensing |
| Rear Lift | 6294lbs / 2854kg 7418lbsOptOptional / 3364kg |
Electrical | |
| Ground | negative |
| Charging System | alternator |
| Charging Amps | 72/90 *With Sound-Gard cab |
| Batteries | 2 |
| Battery Volts | 6/12 OptOptional |
Power Take Off Pto | |
| Rear Pto | independent |
| Clutch | hydraulic wet disc |
| Rear Rpm | 540/1000 |
| Engine Rpm | 540@2200 / 1000@2200 |
Transmissions | |
| Description | 16-speed partial power shift 15-speed full power shift |
Serial Location | |
| Description | Serial number plate on rear of tractor |