| Manufacturer |
John Deere |
| Price |
67,009(USD) |
| Model |
4450 |
| Equipment Type |
Row-Crop Tractors |
| Factory |
Waterloo, Iowa, USA |
ENGINE DETAIL
The John Deere 4450 features a powerful turbocharged 7.6L diesel engine delivering 158.2 hp at a rated RPM of 2200, ideal for heavy-duty applications. With a high compression ratio of 15.8:1, it offers robust torque and fuel efficiency, making it an excellent choice for agricultural tasks. However, the dry air cleaner could necessitate more frequent maintenance in dusty environments, potentially impacting performance if not monitored.
| 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 |
JOHN DEERE 4450 ENGINE
The John Deere 4450 features a robust 7.6L 6-cylinder diesel engine, providing high torque output and fuel efficiency suitable for demanding agricultural tasks. Its durable design and advanced hydraulic system enhance operational capabilities, allowing for effective use in both fieldwork and transportation. However, the tractor's weight can be a challenge in wet soil conditions, potentially leading to soil compaction and reduced mobility.
| Description |
John Deere 7.6L 6-cyl diesel |
TRANSMISSIONS OVERVIEW
The John Deere 4450 features a 16-speed partial power shift transmission, providing flexibility for various field conditions, while its 15-speed full power shift variant allows seamless gear changes without clutch engagement, enhancing operational efficiency. The advantages of these systems include improved torque management and reduced cycle times during heavy-duty work. However, the complexity of the power shift mechanisms may require specialized training for operators to maximize performance and minimize potential maintenance issues.
| Description |
16-speed partial power shift 15-speed full power shift |
TRANSMISSION 1
The John Deere 4450 features a Quad-Range transmission which optimizes performance by allowing 16 forward and 6 reverse gears, ideal for varied agricultural tasks. The partial power shift facilitates seamless speed changes between certain gears without clutch engagement, enhancing operational efficiency, although the tractor must be stationary to shift ranges, which can limit quick maneuverability. The Perma-Clutch wet disc system ensures durability and consistent performance, but its 64qt oil capacity necessitates regular monitoring to prevent overheating and maintain optimal function.
| Transmission |
John Deere Quad-Range |
| Type |
partial power shift |
| Gears |
16 forward and 6 reverse |
| Clutch |
Perma-Clutch wet disc |
| Oil capacity |
64qts / 60.6L |
| Description |
Tractor 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 |
SPEEDS 1
| Description |
18.4-38 rear tires |
TRANSMISSION 2
The John Deere 4450 features a full power shift transmission with 15 forward and 4 reverse gears, allowing smooth gear changes without using a clutch, enhancing operational efficiency. The Perma-Clutch wet disc system enables durable and reliable clutch performance, suitable for intensive agricultural tasks. With different oil capacities depending on whether it's 2WD or 4WD, operators should consider maintenance to ensure optimal performance, especially in challenging field conditions where robust engagement is essential.
| Transmission |
John Deere Power Shift |
| Type |
full power shift |
| Gears |
15 forward and 4 reverse |
| Clutch |
Perma-Clutch wet disc |
| 2WD Oil capacity |
42qts / 39.7L |
| 4WD Oil capacity |
54qts / 51.1L |
| Description |
Optional transmission. Full (clutchless) power shift can be made between gears, forward and reverse |
SPEEDS 2
| Description |
18.4-38 rear tires |
JOHN DEERE 4450 TRANSMISSIONS
The John Deere 4450 features a 16-speed partial power shift transmission, allowing for smooth gear transitions under load, which enhances productivity during varied field conditions. The optional 15-speed full power shift provides continuous shifting without interruption in power delivery, ideal for heavy-duty applications and minimizing operator fatigue. However, operators may face a steeper learning curve with complex gear management, necessitating additional training for optimal performance.
| Description |
16-speed partial power shift 15-speed full power shift |
MECHANICAL
The John Deere 4450 features a reliable inboard planetary final drive, enhancing traction and reducing stress on drivetrain components, ensuring longevity in rigorous agricultural applications. The hydraulic rear differential lock significantly improves traction on uneven terrain, although it can introduce additional complexity during maintenance. The optional four-post Roll-Gard ROPS enhances operator safety, making this tractor well-suited for demanding field conditions while adhering to safety regulations.
| 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 |
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 |
POWER TAKE-OFF (PTO)
| Rear PTO |
independent |
| Clutch |
hydraulic wet disc |
| Rear RPM |
540/1000 |
| Engine RPM |
540@2200 / 1000@2200 |
JOHN DEERE 4450 TIRES
The John Deere 4450 offers versatile tire options for both 2WD and 4WD configurations, allowing customization based on terrain and load requirements. The larger rear tire options (e.g., 23.1-34 and 18.4-42) provide improved traction and flotation on softer soils, enhancing performance in agricultural settings. However, selecting inappropriate tire sizes may compromise maneuverability and fuel efficiency, emphasizing the need for optimization based on specific operational conditions.
| 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 & TIRES
The John Deere 4450 tractor, with a 2WD wheelbase of 106.7 inches and a weight range of 12,745 to 15,400 pounds, offers stability for heavier agricultural tasks but could struggle with traction on uneven terrain. The combination of 10.00-16 front tires and 18.4-38 rear tires provides a good balance for field work, allowing for efficient power transfer. However, the 4WD variant, having a slightly shorter wheelbase of 105.3 inches, will enhance maneuverability and improve traction in challenging conditions, ideal for muddy or hilly landscapes.
| 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 |
4450 SERIAL NUMBERS
4450 SERIAL LOCATION
| Description |
Serial number plate on rear of tractor |
ELECTRICAL
| Ground |
negative |
| Charging system |
alternator |
| Charging amps |
72/90 *With Sound-Gard cab |
| Batteries |
2 |
| Battery volts |
6/12 OptOptional |
