| Manufacturer | John Deere |
| Price | - |
| Model | 9420T |
| Equipment Type | Agricultural Crawler Tractors |
| Factory | Waterloo, Iowa, USA |
ENGINE DETAIL
The John Deere 9420T features a robust turbocharged diesel engine, delivering 425 horsepower with a notable 17:1 compression ratio, optimizing fuel efficiency and power output for demanding agricultural tasks. With a substantial displacement of 12.5L and a bore/stroke configuration that supports high torque, this tractor is engineered for heavy-duty operations, particularly in plowing and tilling large fields. However, its size and weight may pose challenges in maneuverability on uneven terrain, necessitating careful operation to maintain stability.
| Description | John Deere turbocharged diesel 6-cylinder liquid-cooled |
| Displacement | 765ci / 12.5L |
| Bore/Stroke | 5.00x6.50inches / 127x 165mm |
| Power | 425hp / 316.9kW |
| Compression | 17:1 |
| Rated RPM | 2100 |
| Starter volts | 12 |
| Coolant capacity | 64qts / 60.6L |
ENGINE OIL
The John Deere 9420T has an oil capacity of 44 quarts (41.6 liters), which indicates a robust oil system beneficial for extended operating times and thermal management. Ensure regular oil changes and monitoring of oil quality to maintain peak engine performance and longevity under demanding agricultural conditions. A larger oil capacity can be advantageous for heavy-duty applications as it supports longer intervals between servicing.
| Oil capacity | 44qts / 41.6L |
JOHN DEERE 9420T ENGINE
The John Deere 9420T features a robust 12.5L 6-cylinder diesel engine, offering high torque and efficiency for heavy-duty applications. Its track system provides superior traction and weight distribution, which is advantageous in soft soil conditions but may lead to increased wear on turf compared to wheeled tractors. Additionally, the tractor's advanced hydraulics support various implements, enhancing versatility in diverse farming scenarios.
| Description | John Deere 12.5L 6-cyl diesel |
TRANSMISSIONS OVERVIEW
The John Deere 9420T features sophisticated transmission options with an 18-speed full power shift and a 24-speed partial power shift, enabling smooth gear transitions and optimal power delivery in diverse field conditions. The full power shift provides seamless shifting without loss of power, beneficial for heavy-duty tasks, while the partial power shift allows for fine-tuning speed and torque, advantageous in varying terrain. However, operators must be familiar with the complexities of these systems to maximize efficiency and mitigate potential mechanical issues.
| Description | 18-speed full power shift 24-speed partial power shift |
TRANSMISSION 1
The John Deere 9420T, equipped with a full PowerShift transmission offering 18 forward and 6 reverse gears, provides superior maneuverability and efficiency across various terrains. Its substantial oil capacity of 240 quarts (or 244 quarts with PTO) supports extended operation periods without frequent maintenance interventions, crucial for large-scale agricultural tasks. However, operators must be cautious of overheating in demanding conditions due to the high oil volume, necessitating proactive monitoring of fluid levels and temperatures.
| Transmission | John Deere PowerShift |
| Type | full power shift |
| Gears | 18 forward and 6 reverse |
| Oil capacity | 240qts / 227.1L 244qts (with PTO) / 230.9L |
TRANSMISSION 2
The John Deere 9420T features a PowrSync transmission that provides 24 forward and 6 reverse gears, enhancing operational versatility across various terrains. Its partial power shift system allows seamless gear transitions, which can improve productivity in demanding applications such as tillage and field planting. Operators should monitor the oil capacity, especially during PTO operations, as maintaining optimal levels (up to 260qts) is crucial for ensuring reliable performance and preventing overheating.
| Transmission | John Deere PowrSync |
| Type | partial power shift |
| Gears | 24 forward and 6 reverse |
| Oil capacity | 256qts / 242.3L 260qts (with PTO) / 246.1L |
| Description | Four synchronized ranges (A-D) with three synchronized gears (1-3) and a high-low power shift |
JOHN DEERE 9420T TRANSMISSIONS
The John Deere 9420T tractor features an 18-speed full power shift transmission, which provides seamless shifting without loss of power, improving efficiency during heavy-duty applications. The optional 24-speed partial power shift allows for finer control over speed and torque, beneficial for varied topographies and tasks like tillage or plowing. However, the complexity of these systems may require advanced operator training to optimize performance and maintain reliability.
| Description | 18-speed full power shift 24-speed partial power shift |
MECHANICAL
The John Deere 9420T features a crawler drive system, which provides superior traction and stability on uneven terrain, ideal for heavy tillage and hauling tasks. Its electro-hydraulic power steering enhances maneuverability, offering precision control over the tractor's movements. The hydraulic wet disc brakes ensure excellent stopping power and reduced wear, crucial for safety and maintenance in demanding agricultural environments.
| Drive | crawler |
| Steering | electro-hydraulic power |
| Description | Hydraulic wet disc brakes Cab standard |
CAPACITY
| Fuel | 320gal / 1211.2L |
| Hydraulic syste | 27gal / 102.2L 27.5gal (with 3-pt) / 104.1L |
HYDRAULICS
| Type | closed center pressure flow compensated |
| Capacity | 27gal / 102.2L 27.5gal (with 3-pt) / 104.1L |
| Pressure | 2900psi / 200.0bar |
| Valve | 4 or 5 |
| Pump flow | 30gpm (one SCV) / 113.6lpm |
| Total flow | 44gpm (PowrSync) / 166.5lpm 48gpm (Powershift) / 181.7lpm |
TRACTOR HITCH
| Rear Type | III, IV/IVN |
| Rear lift | 13,871lbs / 6291kg 14,445lbsOptOptional / 6552kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 1000 |
JOHN DEERE 9420T TRACKS
| Width | 36inches / 91cm |
| Length on ground | 111inches / 281cm |
| Area on ground | 7992in² / 5.2m² |
DIMENSIONS & TRACKS
| Wheelbase | 111inches / 281cm |
| Weight | 39,000lbs / 17690kg |
| Description | 30-inch tracks |
9420T SERIAL LOCATION
| Description | Serial number plate on the left side of the tractor frame |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 140 |
| Batteries | 3 |
| Battery CCA | 925 |
| Battery volts | 12 |