John Deere 9420T
Power
425 hp
Production
2002-2007
Engine
6-cylinder
Transmission
John Deere PowerShift
From the same series:
Introduction
John Deere 9420T Agricultural Crawler Tractor
The John Deere 9420T is a high-horsepower agricultural crawler tractor manufactured in Waterloo, Iowa, between 2002 and 2007. Designed for large-scale farming operations, this machine prioritizes traction and stability through its track-based drive system.
Engine and Performance
The tractor is powered by a 12.5-liter, 6-cylinder liquid-cooled engine. It delivers a rated power output of 425 horsepower at 2100 engine RPM. The engine features a 17:1 compression ratio and a bore/stroke measurement of 5.00x6.50 inches, engineered to provide consistent torque for heavy-duty field applications.
Transmission and Drivetrain
Two transmission configurations were available: the John Deere PowerShift, a full power shift transmission providing 18 forward and 6 reverse speeds, and the PowrSync, a partial power shift offering 24 forward and 6 reverse gears. The latter utilizes four synchronized ranges with three synchronized gears per range, complemented by a high-low power shift for operational flexibility.
Hydraulics and Hitch
The hydraulic system is a closed-center, pressure/flow compensated type with a standard capacity of 27 gallons. Depending on the transmission, the total flow reaches either 44 gpm or 48 gpm. The system supports 4 or 5 valves and operates at a pressure of 2900 psi. The rear hitch is compatible with Category III and IV/IVN implements, with a lift capacity ranging from 13,871 to 14,445 lbs depending on the configuration.
Dimensions and Undercarriage
The 9420T utilizes 30-inch tracks to distribute its 39,000 lbs operating weight, minimizing ground pressure. The wheelbase measures 111 inches, providing a stable platform for heavy draft work. Steering is managed through an electro-hydraulic power system, and the tractor is equipped with hydraulic wet disc brakes for controlled deceleration.
Conclusion
The John Deere 9420T is engineered for intensive agricultural tasks where high tractive effort and stability are required. Its combination of track-based propulsion, high hydraulic flow, and robust transmission options makes it suitable for large-scale tillage and heavy implement operation.
Production Information of John Deere, 9420T
- Agricultural Crawler tractor
- Built in Waterloo, Iowa, USA
| Manufacturer | John Deere |
|---|
Engine Specifications of John Deere, 9420T
- Liquid-cooled
- 6-cylinder
| Coolant capacity | 64 qts [60.6 L] |
|---|---|
| Displacement | 765 ci [12.5 L] |
| Oil capacity | 44 qts [41.6 L] |
| Compression | 17:1 |
| Bore/Stroke | 5.00x6.50 inches [127 x 165 mm] |
| Starter volts | 12 |
| Rated RPM | 2100 |
| Power | 425 hp [316.9 kW] |
Transmission Information of John Deere, 9420T
Transmission variants 1
| Transmission | John Deere PowerShift |
|---|---|
| Transmission(optional) | 244 qts (with PTO) [230.9 L] |
| Oil capacity | 240 qts [227.1 L] |
| Type | Full power shift |
| Gears | 18 forward and 6 reverse |
Transmission variants 2
- Four synchronized ranges (A-D) with three synchronized gears (1-3) and a high-low power shift.
| Transmission | John Deere PowrSync |
|---|---|
| Transmission(optional) | 260 qts (with PTO) [246.1 L] |
| Oil capacity | 256 qts [242.3 L] |
| Type | Partial power shift |
| Gears | 24 forward and 6 reverse |
- 18-speed full power shift
- 24-speed partial power shift
Mechanical Specs of John Deere, 9420T
- Cab standard.
- Hydraulic wet disc brakes
| Drive | Crawler |
|---|---|
| Steering | Electro-hydraulic power |
Power Information of John Deere, 9420T
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 1000 |
Hydraulics Specifications of John Deere, 9420T
| Total flow | 44 gpm (PowrSync) [166.5 lpm] |
|---|---|
| Type | Closed center pressure/flow compensated |
| Valves | 4 or 5 |
| Pressure | 2900 psi [200.0 bar] |
| Capacity | 27 gal [102.2 L] |
| Capacity(optional) | 48 gpm (Powershift) [181.7 lpm] |
| Pump flow | 30 gpm (one SCV) [113.6 lpm] |
| Pump flow(optional) | 27.5 gal (with 3-pt) [104.1 L] |
Three-Point Hitch of John Deere, 9420T
| Rear Type | III, IV/IVN |
|---|---|
| Rear lift | 13,871 lbs [6291 kg] |
| Rear lift(optional) | 14,445 lbs [6552 kg] |
Electrical System of John Deere, 9420T
| Ground | Negative |
|---|---|
| Battery CCA | 925 |
| Batteries | 3 |
| Charging system | Alternator |
| Battery volts | 12 |
| Charging amps | 140 |
Where it sits
With 425 HP, the John Deere 9420T sits between 9320T (375 HP) and 9520T (450 HP) in John Deere's range. Its power puts it in the 98th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the John Deere 9420T have?
The John Deere 9420T delivers 425 HP.
What years was the John Deere 9420T produced?
The John Deere 9420T was produced in 2002-2007.
What engine does the John Deere 9420T have?
The John Deere 9420T is powered by a 6-cylinder engine.
What transmission does the John Deere 9420T use?
The John Deere 9420T uses a John Deere PowerShift transmission.