John Deere 8120T
Power
208 hp
Production
2002-2005
Transmission
John Deere PowerShift
From the same series:
Introduction
John Deere 8120T Crawler Tractor
The John Deere 8120T is an agricultural crawler tractor produced between 2002 and 2005 at the company's facility in Waterloo, Iowa, USA. Designed for heavy-duty field applications, this model emphasizes high tractive effort and stability through its tracked undercarriage system.
Engine and Performance
The tractor is powered by an 8.1-liter, liquid-cooled inline engine. It delivers a rated net power of 200 hp (149.1 kW) and a maximum net power of 220 hp (164.1 kW). The engine operates within a rated speed of 2200 RPM and is supported by a compression ratio of 16.5:1, designed to balance power output with operational efficiency.
Transmission and Drivetrain
Equipped with a John Deere PowerShift transmission, the 8120T provides 16 forward and 4 reverse gears. This full power shift system allows for seamless transitions between speeds without interrupting power delivery, which is essential for consistent performance during heavy cultivation or transport tasks.
Hydraulics and Hitch
The hydraulic system utilizes a closed-center pressure flow compensated (PFC) design. It provides a standard pump flow of 30 gpm (113.6 lpm), with an optional capacity of 42.5 gpm (160.9 lpm) at 2900 psi. The rear hitch is a category III/IIIN configuration capable of lifting up to 15,180 lbs (6885 kg), supporting a wide range of heavy implements.
Dimensions and Undercarriage
The tractor features a 24-inch track width and an 89-inch wheelbase. With an operating weight of 25,950 lbs (11770 kg), the crawler design ensures low ground pressure and superior traction compared to conventional wheeled tractors, particularly in soft or uneven soil conditions.
Conclusion
The John Deere 8120T is engineered for professional agricultural operations requiring high torque and reliable traction. Its combination of a robust PowerShift transmission, high-capacity hydraulic system, and crawler-based propulsion makes it a suitable machine for large-scale soil preparation and heavy implement management.
Production Information of John Deere, 8120T
- Agricultural Crawler tractor
- Built in Waterloo, Iowa, USA
| Manufacturer | John Deere |
|---|
Engine Specifications of John Deere, 8120T
- Liquid-cooled inline
| Coolant capacity | 35.9 qts [34.0 L] |
|---|---|
| Starter volts | 12 |
| Rated Power (gross) | 208 hp [155.1 kW] |
| Oil change | 250 h |
| Compression | 16.5:1 |
| Maximum Power (gross) | 230 hp [171.5 kW] |
| Displacement | 496 ci [8.1 L] |
| Oil capacity | 22.7 qts [21.5 L] |
| Rated Power (net) | 200 hp [149.1 kW] |
| Maximum Power (net) | 220 hp [164.1 kW] |
| Bore/Stroke | 4.56x5.06 inches [116 x 129 mm] |
| Operating RPM | 1500-2200 |
| Idle RPM | 900-2300 |
| Rated RPM | 2200 |
Transmission Information of John Deere, 8120T
Transmission variants 1
| Transmission | John Deere PowerShift |
|---|---|
| Oil capacity | 260 qts [246.1 L] |
| Type | Full power shift |
| Gears | 16 forward and 4 reverse |
Mechanical Specs of John Deere, 8120T
- Cab standard.
- Hydraulic wet disc brakes
| Drive | Crawler |
|---|---|
| Steering | Electro-hydraulic power |
Power Information of John Deere, 8120T
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 1000 (1-3/4) |
Hydraulics Specifications of John Deere, 8120T
| Type | Closed center pressure flow compensated (PFC) |
|---|---|
| Pump flow | 30 gpm [113.6 lpm] |
| Valves | 5 |
| Capacity | 65 gal [246.0 L] |
| Total flow | 33.5 gpm [126.8 lpm] |
| Pressure | 2900 psi [200.0 bar] |
Three-Point Hitch of John Deere, 8120T
| Rear Type | III/IIIN |
|---|---|
| Rear lift | 15,180 lbs [6885 kg] |
Electrical System of John Deere, 8120T
| Ground | Negative |
|---|---|
| Battery CCA | 925 |
| Batteries | 2 |
| Charging system | Alternator |
| Battery volts | 12 |
| Charging amps | 150 |
Where it sits
With 208 HP, the John Deere 8120T sits between 8110T (183 HP) and 8220T (233 HP) in John Deere's range. Its power puts it in the 88th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the John Deere 8120T have?
The John Deere 8120T delivers 208 HP.
What years was the John Deere 8120T produced?
The John Deere 8120T was produced in 2002-2005.
What transmission does the John Deere 8120T use?
The John Deere 8120T uses a John Deere PowerShift transmission.