Brand siblingJohn Deere 7820
The John Deere 7820 is a powerful 4WD tractor made from 2003 to 2007. It has a strong 6.8L diesel engine with 6 cylinders, giving it 171.05 hp. This tractor is great for big farm jobs. It has a special transmission called AutoQuad-Plus with 20 forward and 20 reverse gears, making it easy to find the right speed for any task. This tractor is big and tough. It's 212.2 inches long, 96 inches wide, and 125.2 inches tall. It weighs 21,000 pounds, which helps it handle heavy work. The 7820 has a three-point hitch at the back that can lift up to 13,618 pounds. It also has a PTO that spins at 1000 rpm, perfect for running farm tools. The tractor has a comfortable cab for the driver and uses hydraulic wet disc brakes to stop safely. It was made in Waterloo, Iowa, showing John Deere's American roots.
Quick specs
- Category
- Agricultural
- Engine Power Output
- 171hp
- Operating Weight
- 21,000 lb
- Transmission
- Partial power shift (AutoQuad-Plus)
At a glance
How the 7820 compares
vs. Agricultural medianDistribution
Engine Power (hp)
Across all Agricultural tractors
This model
The 7820 ranks at the 74th percentile for engine power among recorded agricultural tractors.
Overview
About the John Deere 7820
The John Deere 7820 is a powerful 4WD tractor made from 2003 to 2007. It has a strong 6.8L diesel engine with 6 cylinders, giving it 171.05 hp. This tractor is great for big farm jobs. It has a special transmission called AutoQuad-Plus with 20 forward and 20 reverse gears, making it easy to find the right speed for any task. This tractor is big and tough. It's 212.2 inches long, 96 inches wide, and 125.2 inches tall. It weighs 21,000 pounds, which helps it handle heavy work. The 7820 has a three-point hitch at the back that can lift up to 13,618 pounds. It also has a PTO that spins at 1000 rpm, perfect for running farm tools. The tractor has a comfortable cab for the driver and uses hydraulic wet disc brakes to stop safely. It was made in Waterloo, Iowa, showing John Deere's American roots.
Full specifications
Every recorded spec
General
| Manufacturer | John Deere |
|---|---|
| Model | 7820 |
| Category | Agricultural tractor |
| Type | 4x4 MFWD 4WD |
| Years built | 2003–2007 |
| Operating weight | 21,000lb |
Engine
| Make | John Deere |
|---|---|
| Power | 171.05hp |
| Cylinders | 6 |
| Displacement | 415ci |
| Bore | 4.19in |
| Stroke | 5in |
Transmission
| Type | Partial power shift (AutoQuad-Plus) |
|---|---|
| Forward gears | 20 |
| Reverse gears | 20 |
Chassis & drive
| Chassis | 4x4 MFWD 4WD |
|---|---|
| Drive | 4WD |
| Steering | Hydrostatic power |
| Brakes | Hydraulic wet disc |
| Cab | Cab |
Hydraulics
| Type | Closed-center pressure-flow compensated (PFC) |
|---|
Power take-off
| Rear PTO | Independent with hydraulic wet disc clutch |
|---|---|
| PTO speed | 1,000rpm |
Dimensions
| Length | 212.2in |
|---|---|
| Width | 96in |
| Height | 125.2in |
| Operating weight | 21,000lb |
Tires
| Front | 600/65R28 |
|---|---|
| Rear | 710/70R38 |
Head to head
7820 vs. Agricultural median
How the John Deere 7820 compares to other Agricultural tractors
| Spec | This model | Agricultural median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 171 hp | 110 hp | +56% | 74th |
| Engine Displacement | 415 ci | 336 ci | +24% | 72nd |
| Cylinders | 6 | 5.5 | +9% | 74th |
| Forward Gears | 20 | 16 | +25% | 74th |
| Operating Weight | 21,000 lb | 10,914 lb | +92% | 87th |
| Length | 212 in | 173 in | +23% | 87th |
| Width | 96 in | 79.5 in | +21% | 76th |
| Height | 125 in | 111 in | +13% | 84th |
| 3-Point Hitch Capacity | 13,618 lb | 12,126 lb | +12% | 54th |
Medians and percentiles are computed from the agricultural tractors in our database with a recorded value for each spec (sample sizes 93–1,130 models).
Compare to tractors with similar specs
Commonly compared John Deere tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| John Deere 6R 195 | 191.8 hp | 18,519 lb | — | Compare → |
| John Deere 7330 Premium Cab Tractor | 150 hp | — | — | Compare → |
| John Deere 6820 | 135 hp | — | — | Compare → |
| John Deere 6900 | 130 hp | 11,885 lb | — | Compare → |
| John Deere 6630 | 126 hp | 11,390 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| AGCO RT140 | 170 hp | — | — | Compare → |
| Allis Chalmers 8070 | 170 hp | 16,850 lb | 1982–1985 | Compare → |
| CaseIH 7130 | 170 hp | 16,280 lb | 1987–1993 | Compare → |
| CaseIH 7230 | 170 hp | 17,790 lb | 1994–1996 | Compare → |
| Allis Chalmers 8050 | 169 hp | 15,305 lb | 1982–1985 | Compare → |
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FAQ
Common questions
When was the John Deere 7820 made?
The John Deere 7820 was manufactured from 2003 to 2007.
What is the operating weight of the John Deere 7820?
In working trim, the John Deere 7820 comes in at roughly 21,000 lb.
Which transmission does the John Deere 7820 use?
The John Deere 7820 is equipped with a Partial power shift (AutoQuad-Plus) transmission with 20 forward gears.
What type of hydraulic system does the John Deere 7820 use?
Hydraulics on the John Deere 7820 are Closed-center pressure-flow compensated (PFC).
What size tires does the John Deere 7820 use?
Factory rubber for the John Deere 7820 is 600/65R28 front tires and 710/70R38 rear tires.
What hitch category is the John Deere 7820?
The John Deere 7820 uses a Category Category 3 hitch with a lift capacity of 13,618 lb.
What is the engine power output of the John Deere 7820?
Rated engine output for the John Deere 7820 is 171.05 hp, delivered by a 6-cylinder engine. The engine displaces 415 ci.
How do I maintain a John Deere 7820?
Routine service for the John Deere 7820 covers engine oil and filter changes, hydraulic and coolant level checks, air filter cleaning, and scheduled inspections. Refer to the manufacturer's maintenance schedule for exact intervals.




