John Deere 7920
Power
205 hp
Production
2004-2007
Engine
Turbocharged intercooled diesel, 6-cylinder
Transmission
AutoPowr IVT
Drive
4WD
From the same series:
Introduction
John Deere 7920 Row-Crop Tractor
The John Deere 7920 is a high-horsepower row-crop tractor manufactured in Waterloo, Iowa, between 2004 and 2007. Designed for demanding agricultural applications, this model combines significant power output with advanced transmission technology to provide a versatile solution for large-scale field operations.
Engine and Power
The tractor is powered by an 8.1-liter, 6-cylinder liquid-cooled turbocharged and intercooled diesel engine. It delivers a net rated power of 197.1 hp (147.0 kW) at 2100 rated RPM, with a maximum net power of 211.9 hp (158.0 kW). The engine features a compression ratio of 16.5:1 and is equipped with a dual paper element air cleaner to maintain performance in dusty field conditions.
Transmission and Drivetrain
The 7920 utilizes the AutoPowr IVT (Infinitely Variable Transmission), a hydro-mechanical system controlled by a right-hand speed lever and a left-hand reverser. This transmission allows for infinite forward and reverse speeds, with a minimum speed capability of 50 meters per hour. The drivetrain is configured for four-wheel drive, supported by hydraulic wet disc brakes and power steering.
Hydraulics and PTO
The hydraulic system is a closed-center pressure-flow compensated (PFC) design, providing a pump flow of 32.2 gpm (121.9 lpm) at a system pressure of 3046 psi. The tractor is equipped with an independent rear PTO offering 540 and 1000 RPM settings. An optional independent front PTO is also available, providing 1000 RPM operation.
Dimensions and Capacity
Built on a 112.6-inch wheelbase, the tractor measures 212.2 inches in length. It features a cab as standard equipment, providing an overall height of 125.4 inches. The rear lift capacity is rated at 10,050 lbs, with an optional configuration capable of handling up to 14,000 lbs, allowing for the attachment of a wide range of heavy implements.
Conclusion
The John Deere 7920 serves as a robust platform for intensive row-crop farming. Its combination of an infinitely variable transmission, high-capacity hydraulics, and substantial engine power makes it well-suited for heavy tillage, planting, and transport tasks requiring precise speed control and consistent power delivery.
Production Information of John Deere, 7920
- Row-Crop tractor
- Built in Waterloo, Iowa, USA
| Manufacturer | John Deere |
|---|
Dimension and Tires Information of John Deere, 7920
| Wheelbase | 112.6 inches [286 cm] |
|---|---|
| Width | 96 inches (short axle) [243 cm] |
| Clearance (rear axle) | 16.3 inches [41 cm] |
| Clearance (rear axle)(optional) | 240.4 inches (with front weights) [610 cm] |
| Rear axle | 3.622 by 118 inches [91 by 2997 mm] |
| Length | 212.2 inches [538 cm] |
| Length(optional) | 118 inches (long axle) [299 cm] |
| Height (cab) | 125.4 inches [318 cm] |
| Clearance (front axle) | 22.3 inches [56 cm] |
| Rear axle | 3.622 by 110.5 inches [91 by 2806 mm] |
| Rear axle | 3.622 by 96 inches [91 by 2438 mm] |
| Rear axle | 3.937 by 118 inches [99 by 2997 mm] |
| Rear axle | 3.937 by 110.5 inches [99 by 2806 mm] |
| Rear axle | 3.937 by 96 inches [99 by 2438 mm] |
| Ag front | 420/90R30 |
|---|---|
| Ag rear | 480/80R46 |
Engine Specifications of John Deere, 7920
- Liquid-cooled inline
- Turbocharged intercooled diesel
- 6-cylinder
| Oil capacity | 25.4 qts [24.0 L] |
|---|---|
| Starter volts | 12 |
| Rated Power (gross) | 205.2 hp [153.0 kW] |
| Coolant capacity | 33.8 qts [32.0 L] |
| Maximum Power (gross) | 219.9 hp [164.0 kW] |
| Air cleaner | Dual paper elements |
| Maximum Power (net) | 211.9 hp [158.0 kW] |
| Displacement | 496 ci [8.1 L] |
| Rated Power (net) | 197.1 hp [147.0 kW] |
| Bore/Stroke | 4.56x5.06 inches [116 x 129 mm] |
| Idle RPM | 875-2200 |
| Rated RPM | 2100 |
| Compression | 16.5:1 |
Transmission Information of John Deere, 7920
Transmission variants 1
- Hydro-mechanical IVT controlled via right-hand speed lever and left-hand reverser lever. Knob on the speed lever adjusts the set speeds for two ranges. Minimum speed of 50 meters per hour (164 feet per hour).
| Transmission | AutoPowr IVT |
|---|---|
| Type | Infinitely variable transmission |
| Gears | Infinite forward and reverse |
Mechanical Specs of John Deere, 7920
- Four-wheel drive
- Cab standard.
- Power steering
- Hydraulic wet disc brakes
Power Information of John Deere, 7920
| Front PTO(optional) | Independent |
|---|---|
| Rear PTO | Independent |
| Engine RPM | 540@1950 |
| Engine RPM(optional) | 1000 (1.75) |
| Clutch | Hydraulic wet discs |
| Front PTO Type | 1000 (1.75) |
| Front PTO Type(optional) | 1000@1950 |
| Rear PTO Type | 540/1000 (1.375) |
Hydraulics Specifications of John Deere, 7920
| Type | Closed-center pressure-flow compensated (PFC) |
|---|---|
| Pump flow | 32.2 gpm [121.9 lpm] |
| Valves | 7 |
| Capacity | 28.5 gal [107.9 L] |
| SCV flow | 30 gpm [113.6 lpm] |
| Pressure | 3046 psi [210.0 bar] |
Three-Point Hitch of John Deere, 7920
| Rear Type | 3/3N |
|---|---|
| Rear lift | 10050 lbs [4558 kg] |
| Rear lift(optional) | 14000 lbs [6350 kg] |
Electrical System of John Deere, 7920
| Ground | Negative |
|---|---|
| Battery CCA | 925 |
| Batteries | 2 |
| Charging system | Alternator |
| Battery volts | 12 |
| Charging amps | 150 |
Where it sits
With 205 HP, the John Deere 7920 sits between 7820 (189 HP) and 7930 (220 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 7920 have?
The John Deere 7920 delivers 205 HP.
What years was the John Deere 7920 produced?
The John Deere 7920 was produced in 2004-2007.
What engine does the John Deere 7920 have?
The John Deere 7920 is powered by a Turbocharged intercooled diesel, 6-cylinder engine.
What transmission does the John Deere 7920 use?
The John Deere 7920 uses a AutoPowr IVT transmission.
Is the John Deere 7920 4WD?
The John Deere 7920 is available in 4WD.