Four-Wheel DrivePerformance profile
John Deere 9420
The John Deere 9420 is a powerful four-wheel drive tractor built from 2002 to 2007. It's a big machine, measuring 274 inches long, 115.5 inches wide, and 137.5 inches tall. This tractor weighs a hefty 34,877 pounds, making it great for heavy-duty farm work. Under the hood, the 9420 has a strong John Deere diesel engine with 6 cylinders. This engine can produce 425 horsepower, which is a lot of power for tough jobs. The tractor has a 24-speed forward and 6-speed reverse transmission, giving farmers many options for different tasks. It also has a three-point hitch that can lift up to 13,871 pounds. The 9420 comes with a comfortable cab that has air conditioning, making long work days easier for the driver. It has big 70-inch tires both front and back, which help it move well in fields.
ManufacturerJohn DeerePower425 hpEngine6-cylTranspartial power shift
Image not recorded
Quick specs
- Category
- Four-Wheel Drive
- Engine Power Output
- 425hp
- Operating Weight
- 34,877 lb
- Transmission
- partial power shift
At a glance
How the 9420 compares
vs. Four-Wheel Drive medianDistribution
Engine Power (hp)
Across all Four-Wheel Drive tractors
425 hp · 59th
This model
84
Median 375 hp
549
This modelFour-Wheel Drive tractorsMediann = 162
The 9420 ranks at the 59th percentile for engine power among recorded four-wheel drive tractors.
Overview
About the John Deere 9420
The John Deere 9420 is a powerful four-wheel drive tractor built from 2002 to 2007. It's a big machine, measuring 274 inches long, 115.5 inches wide, and 137.5 inches tall. This tractor weighs a hefty 34,877 pounds, making it great for heavy-duty farm work. Under the hood, the 9420 has a strong John Deere diesel engine with 6 cylinders. This engine can produce 425 horsepower, which is a lot of power for tough jobs. The tractor has a 24-speed forward and 6-speed reverse transmission, giving farmers many options for different tasks. It also has a three-point hitch that can lift up to 13,871 pounds. The 9420 comes with a comfortable cab that has air conditioning, making long work days easier for the driver. It has big 70-inch tires both front and back, which help it move well in fields.
Full specifications
Every recorded spec
General
| Manufacturer | John Deere |
|---|---|
| Model | 9420 |
| Category | Four-Wheel Drive tractor |
| Type | 4x4 articulated 4WD |
| Years built | 2002–2007 |
| Operating weight | 34,877lb |
Engine
| Make | John Deere |
|---|---|
| Power | 425hp |
| Cylinders | 6 |
| Displacement | 765ci |
| Bore | 5in |
| Stroke | 6.5in |
Transmission
| Type | partial power shift |
|---|---|
| Forward gears | 24 |
| Reverse gears | 6 |
Chassis & drive
| Chassis | 4x4 articulated 4WD |
|---|---|
| Drive | 4WD |
| Steering | Hydrostatic articulated |
| Brakes | Hydraulic wet disc |
| Cab | Cab |
Hydraulics
| Type | Closed center pressure/flow compensated |
|---|
Power take-off
| Rear PTO | Independent |
|---|---|
| PTO speed | 1,000rpm |
Dimensions
| Length | 274in |
|---|---|
| Width | 115.5in |
| Height | 137.5in |
| Operating weight | 34,877lb |
Capacities
| Cooling system | 16gal |
|---|
Head to head
9420 vs. Four-Wheel Drive median
How the John Deere 9420 compares to other Four-Wheel Drive tractors
| Spec | This model | Four-Wheel Drive median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 425 hp | 375 hp | +13% | 59th |
| Engine Displacement | 765 ci | 826 ci | -7% | 30th |
| Cylinders | 6 | 6 | at median | 50th |
| Forward Gears | 24 | 16 | +50% | 98th |
| Operating Weight | 34,877 lb | 37,428 lb | -7% | 42nd |
| Length | 274 in | 275 in | 0% | 49th |
| Width | 116 in | 116 in | at median | 50th |
| Height | 138 in | 143 in | -4% | 35th |
Medians and percentiles are computed from the four-wheel drive tractors in our database with a recorded value for each spec (sample sizes 71–162 models).
Compare to tractors with similar specs
Commonly compared John Deere tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| John Deere 9530 Scraper | 425 hp | — | — | Compare → |
| John Deere 9520 | 450 hp | 38,316 lb | 2002–2007 | Compare → |
| John Deere 9460R | 460 hp | 41,715 lb | 2012–2014 | Compare → |
| John Deere 9R 440 | 390 hp | 46,800 lb | — | Compare → |
| John Deere 9470R | 470 hp | 45,615 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| AGCO AGCOSTAR 8425 | 425 hp | 28,300 lb | 1995–2001 | Compare → |
| CaseIH 9390 | 425 hp | 32,500 lb | — | Compare → |
| CaseIH Magnum 380 | 415 hp | 32,200 lb | 2014+ | Compare → |
| Big Bud 440 | 440 hp | 40,000 lb | — | Compare → |
| Big Bud 402 | 402 hp | 40,000 lb | — | Compare → |
Explore
John Deere siblings
Explore
Similar-spec models
FAQ
Common questions
When was the John Deere 9420 in production?
John Deere 9420 production started in 2002 and ended in 2007.
How much horsepower does the John Deere 9420 have?
The John Deere 9420 produces 425 hp from its 6-cylinder engine. Engine displacement is 765 ci.
How much does the John Deere 9420 weigh?
The John Deere 9420 weighs about 34,877 lb in operating condition.
What transmission is in the John Deere 9420?
Transmission on the John Deere 9420 is partial power shift, with 24 forward speeds.
What type of hydraulic system does the John Deere 9420 use?
Hydraulics on the John Deere 9420 are Closed center pressure/flow compensated.
What hitch category is the John Deere 9420?
The John Deere 9420 uses a Category III hitch with a lift capacity of 13,871 lb.
What maintenance does the John Deere 9420 require?
Like any tractor, the John Deere 9420 needs periodic engine oil and filter changes, hydraulic fluid checks, and regular greasing and inspection. The owner's manual lists the manufacturer's recommended service intervals.