Brand siblingRow CropPerformance profile
John Deere 3420
The John Deere 3420 is a row crop tractor built for farm work. It has a 2WD drive system and power steering, making it easy to handle in the fields. The tractor uses a Syncro-Range transmission with 8 forward gears and 2 reverse gears, giving farmers good control over their speed. Under the hood, the 3420 has a John Deere diesel engine with 6 cylinders. The engine is liquid-cooled and naturally aspirated, producing 77 hp at 2500 rpm. This power output is below average compared to other tractors. The engine size is also below average at 302.7 ci. The tractor weighs 7668 lb, which is on the lighter side for its class. It has a Category II rear hitch for attaching farm tools and a closed center hydraulic system. The John Deere 3420 is 161 inches long and 88.2 inches tall to the exhaust, fitting well in most farm settings.
ManufacturerJohn DeerePower77 hpEngine6-cylTransSyncro-Range
Image not recorded
Quick specs
- Category
- Row Crop
- Engine Power Output
- 77hp
- Operating Weight
- 7,668 lb
- Transmission
- Syncro-Range
At a glance
How the 3420 compares
vs. Row Crop medianDistribution
Engine Power (hp)
Across all Row Crop tractors
77 hp · 13th
This model
12
Median 138 hp
283
This modelRow Crop tractorsMediann = 1,206
The 3420 ranks at the 13th percentile for engine power among recorded row crop tractors.
Overview
About the John Deere 3420
The John Deere 3420 is a row crop tractor built for farm work. It has a 2WD drive system and power steering, making it easy to handle in the fields. The tractor uses a Syncro-Range transmission with 8 forward gears and 2 reverse gears, giving farmers good control over their speed. Under the hood, the 3420 has a John Deere diesel engine with 6 cylinders. The engine is liquid-cooled and naturally aspirated, producing 77 hp at 2500 rpm. This power output is below average compared to other tractors. The engine size is also below average at 302.7 ci. The tractor weighs 7668 lb, which is on the lighter side for its class. It has a Category II rear hitch for attaching farm tools and a closed center hydraulic system. The John Deere 3420 is 161 inches long and 88.2 inches tall to the exhaust, fitting well in most farm settings.
Full specifications
Every recorded spec
General
| Manufacturer | John Deere |
|---|---|
| Model | 3420 |
| Category | Row Crop tractor |
| Type | 4x2 2WD |
| Operating weight | 7,668lb |
Engine
| Make | John Deere |
|---|---|
| Power | 77hp |
| Cylinders | 6 |
| Displacement | 302.7ci |
| Bore | 4.02in |
| Stroke | 4.33in |
Transmission
| Type | Syncro-Range |
|---|---|
| Forward gears | 8 |
| Reverse gears | 2 |
Chassis & drive
| Chassis | 4x2 2WD |
|---|---|
| Drive | 2WD |
| Steering | Power |
Hydraulics
| Type | Closed Center |
|---|
Dimensions
| Length | 161in |
|---|---|
| Height | 88.2in |
| Operating weight | 7,668lb |
Head to head
3420 vs. Row Crop median
How the John Deere 3420 compares to other Row Crop tractors
| Spec | This model | Row Crop median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 77 hp | 138 hp | -44% | 13th |
| Engine Displacement | 303 ci | 391 ci | -23% | 33rd |
| Cylinders | 6 | 6 | at median | 50th |
| Forward Gears | 8 | 16 | -50% | 16th |
| Operating Weight | 7,668 lb | 12,307 lb | -38% | 18th |
| Length | 161 in | 180 in | -10% | 25th |
| Height | 88.2 in | 114 in | -22% | 18th |
Medians and percentiles are computed from the row crop tractors in our database with a recorded value for each spec (sample sizes 1,140–1,417 models).
Compare to tractors with similar specs
Commonly compared John Deere tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| John Deere 2450 | 70 hp | 7,077 lb | — | Compare → |
| John Deere 1830 | 68 hp | 5,600 lb | — | Compare → |
| John Deere 2120 | 68 hp | 6,615 lb | 1969–1972 | Compare → |
| John Deere 2420 | 66 hp | 6,993 lb | — | Compare → |
| John Deere 4030 | 88 hp | 9,180 lb | 1973–1977 | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Barreiros R-545 | 77 hp | 7,720 lb | — | Compare → |
| AGCO LT75 | 78.98 hp | 9,600 lb | — | Compare → |
| Allis Chalmers D19 | 74.2 hp | 6,650 lb | 1961–1964 | Compare → |
| Agrinar T-85 | 80.9 hp | 3,000 lb | — | Compare → |
| AGCO GT65 | 71 hp | 5,335 lb | — | Compare → |
Explore
John Deere siblings
Explore
Similar-spec models
FAQ
Common questions
How much horsepower does the John Deere 3420 have?
The John Deere 3420 produces 77 hp from its 6-cylinder engine. Engine displacement is 302.7 ci.
What transmission is in the John Deere 3420?
Transmission on the John Deere 3420 is Syncro-Range, with 8 forward speeds.
What type of hydraulic system does the John Deere 3420 use?
Hydraulics on the John Deere 3420 are Closed Center.
What hitch category is the John Deere 3420?
The John Deere 3420 uses a Category II hitch.
How much does the John Deere 3420 weigh?
The John Deere 3420 weighs about 7,668 lb in operating condition.
What maintenance does the John Deere 3420 require?
Like any tractor, the John Deere 3420 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.