John Deere 7720
Power
172 hp
Production
2004-2007
Engine
Turbocharged diesel, 6-cylinder
Transmission
PowrQuad Plus
Drive
2WD/4WD
From the same series:
Introduction
John Deere 7720 Row-Crop Tractor
The John Deere 7720 is a row-crop tractor produced between 2004 and 2007 at the John Deere facility in Waterloo, Iowa, USA. Designed for versatile agricultural operations, it belongs to the 7020 series and provides a balance of power and maneuverability.
Engine and Performance
The tractor is powered by a 6.8-liter, 6-cylinder liquid-cooled turbocharged diesel engine. It delivers a rated net power of 167.6 hp (125.0 kW) at 2100 rated RPM, with a maximum gross power reaching 185.1 hp (138.0 kW). The engine features a 17:1 compression ratio and uses a standard firing order of 1-5-3-6-2-4.
Transmission and Drivetrain
The 7720 offers multiple transmission configurations, including the 16-speed or 20-speed PowrQuad Plus partial power shift, the AutoQuad Plus with automatic load-matched shifting, and the AutoPowr IVT infinitely variable transmission. All versions utilize a hydraulic wet disc clutch and provide power shuttle shifting between forward and reverse gears. Available in both two-wheel and four-wheel drive configurations, the tractor includes power steering and hydraulic wet disc brakes.
Hydraulics and PTO
The hydraulic system is a closed-center, pressure-flow compensated (PFC) type, featuring a pump flow capacity of 32.2 gpm (121.9 lpm) at a pressure of 3046 psi. The independent rear PTO supports 540/1000 RPM speeds, with economy modes available at 1750 engine RPM. An independent front PTO is also available as an optional feature.
Dimensions and Hitch
With a wheelbase of 112.6 inches (286 cm), the tractor supports a rear 3-point hitch (category 3/3N) with a standard lift capacity of 10,050 lbs (4558 kg), extendable to 14,000 lbs (6350 kg) with options. The machine comes standard with a cab and offers various axle width configurations to suit specific crop row spacing requirements.
Conclusion
The John Deere 7720 is a robust, multi-purpose tractor suitable for a wide range of row-crop applications. Its variety of transmission options and hydraulic capabilities make it a reliable choice for professional agricultural environments requiring high-output performance and operator comfort.
Production Information of John Deere, 7720
- Row-Crop tractor
- Built in Waterloo, Iowa, USA
| Manufacturer | John Deere |
|---|
Dimension and Tires Information of John Deere, 7720
| Wheelbase | 112.6 inches [286 cm] |
|---|---|
| Rear axle | 3.937 by 118 inches [99 by 2997 mm] |
| Rear axle | 3.937 by 110.5 inches [99 by 2806 mm] |
| Width | 96 inches (short axle) [243 cm] |
| 4WD Clearance (front axle) | 22.3 inches [56 cm] |
| 4WD Clearance (front axle)(optional) | 240.4 inches (with front weights) [610 cm] |
| Rear axle | 3.622 by 96 inches [91 by 2438 mm] |
| 4WD Clearance (drawbar) | 16.3 inches [41 cm] |
| 4WD Clearance (drawbar)(optional) | 118 inches (long axle) [299 cm] |
| Length | 212.2 inches [538 cm] |
| 2WD Clearance (front axle) | 25.6 inches [65 cm] |
| 2WD Clearance (drawbar) | 16.7 inches [42 cm] |
| Height (cab) | 125.4 inches [318 cm] |
| Rear axle | 3.937 by 96 inches [99 by 2438 mm] |
| Rear axle | 3.622 by 118 inches [91 by 2997 mm] |
| Rear axle | 3.622 by 110.5 inches [91 by 2806 mm] |
| Standard tires (ag) | Front: 11.00-16. Rear: 18.4R42 (2WD) |
|---|---|
| Standard tires (ag)(optional) | Front: 14.9R30. Rear: 18.4R42 (4WD) |
Engine Specifications of John Deere, 7720
- Liquid-cooled inline
- Turbocharged diesel
- 6-cylinder
| Oil capacity | 27.5 qts [26.0 L] |
|---|---|
| Starter volts | 12 |
| Rated Power (gross) | 172.9 hp [128.9 kW] |
| Coolant capacity | 33.8 qts [32.0 L] |
| Maximum Power (gross) | 185.1 hp [138.0 kW] |
| Compression | 17:1 |
| Maximum Power (net) | 179.7 hp [134.0 kW] |
| Displacement | 414 ci [6.8 L] |
| Rated Power (net) | 167.6 hp [125.0 kW] |
| Bore/Stroke | 4.19x5.00 inches [106 x 127 mm] |
| Firing order | 1-5-3-6-2-4 |
| Idle RPM | 875-2200 |
| Rated RPM | 2100 |
Transmission Information of John Deere, 7720
Transmission variants 1
- Four power-shift gears (1-4) in four synchronized ranges (A-D) with left-hand reverser. Power shuttle shifting between forward and reverse.
| Transmission | PowrQuad Plus |
|---|---|
| Clutch | Hydraulic wet discs |
| Type | Partial power shift |
| Gears | 16 forward and reverse |
Transmission variants 2
- Four power-shift gears (1-4) in five synchronized ranges (A-E) with left-hand reverser. Power shuttle shifting between forward and reverse.
| Transmission | PowrQuad Plus |
|---|---|
| Gears | 20 forward and reverse |
| Clutch | Hydraulic wet discs |
Transmission variants 3
- Four power-shift gears (1-4) in five synchronized ranges (A-E) with left-hand reverser. Power shuttle shifting between forward and reverse. AutoQuad mode offers automatic load-matched gear shifting with standard and economy-shift settings.
| Transmission | AutoQuad Plus |
|---|---|
| Gears | 20 forward and reverse |
| Clutch | Hydraulic wet discs |
Transmission variants 4
- 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). The IVT was available on the 7720 only when equipped with four-wheel drive.
| Transmission | AutoPowr IVT |
|---|---|
| Type | Infinitely variable transmission |
| Gears | Infinite forward and reverse |
- 16-speed partial power shift
- 20-speed
- Infinitely variable transmission
Mechanical Specs of John Deere, 7720
- Two- or four-wheel drive
- Cab standard.
- Power steering
- Hydraulic wet disc brakes
Power Information of John Deere, 7720
| Rear PTO | Independent |
|---|---|
| Rear PTO(optional) | 1000@1950 |
| Engine RPM | 540@1950 |
| Clutch | Hydraulic wet discs |
| Front PTO(optional) | Independent |
| Front PTO(optional) | 540E@1750 |
| Rear PTO Type | 540/1000 (1.375) |
| Front PTO Type | 1000 (1.375) |
Hydraulics Specifications of John Deere, 7720
| 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, 7720
| Rear Type | 3/3N |
|---|---|
| Rear lift | 10050 lbs [4558 kg] |
| Rear lift(optional) | 14000 lbs [6350 kg] |
Electrical System of John Deere, 7720
| Ground | Negative |
|---|---|
| Battery CCA | 925 |
| Batteries | 2 |
| Charging system | Alternator |
| Battery volts | 12 |
| Charging amps | 150 |
Where it sits
With 172 HP, the John Deere 7720 sits between 7710 (155 HP) and 7820 (189 HP) in John Deere's range. Its power puts it in the 84th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the John Deere 7720 have?
The John Deere 7720 delivers 172 HP.
What years was the John Deere 7720 produced?
The John Deere 7720 was produced in 2004-2007.
What engine does the John Deere 7720 have?
The John Deere 7720 is powered by a Turbocharged diesel, 6-cylinder engine.
What transmission does the John Deere 7720 use?
The John Deere 7720 uses a PowrQuad Plus transmission.
Is the John Deere 7720 4WD?
The John Deere 7720 is available in 2WD/4WD.