The John Deere 4020 is one of the most legendary tractors ever built. Produced from 1964 to 1972, it became the backbone of thousands of farms thanks to its reliability, strong 6-cylinder engine, and proven field performance.
General Specifications
| Product Name |
John Deere 4020 |
| Type |
Row-crop tractor |
| Brand |
John Deere |
| Production Years |
1964 to 1972 |
| Engine |
6.6 L 6-cylinder diesel |
| Fuel Type |
Diesel |
| Cylinders |
6 |
| Displacement |
404 ci / 6.6 L |
| Engine Horsepower |
95 HP |
| PTO Horsepower |
84 HP |
| Transmission |
8-speed Syncro-Range / Power Shift |
| Fuel Tank Capacity |
34 gal / 128.7 L |
| Oil Capacity |
8 qt / 7.6 L |
| Coolant Capacity |
24 qt / 22.7 L |
| Hydraulic Capacity |
10 gal / 37.9 L |
| Wheelbase |
100 in / 254 cm |
| Length |
147 in / 373 cm |
| Width |
96 in / 244 cm |
| Weight |
9560 lbs / 4335 kg |
| Rear PTO |
540 / 1000 rpm |
| Brakes |
Hydraulic wet disc |
| Steering |
Power steering |
Higher Than Average John Deere 4020 Specs
Horsepower95 HP vs 60 HP average
Fuel Tank34 gal vs 18 gal average
Oil Capacity8 qt vs 6 qt average
Coolant24 qt vs 10 qt average
Length147 in vs 120 in average
Weight9560 lbs vs 5000 lbs average
John Deere 4020 Compared To Average
Best For
- Heavy farm work
- Plowing and tillage
- Large acreage
- PTO-driven equipment
- Reliable classic tractor use
Not Best For
- Small properties
- Tight access areas
- Light-duty work
- Modern comfort expectations
- Soft or delicate ground
Horsepower
⚙️
What horsepower meansHorsepower measures how much work the tractor can handle, especially pulling, PTO equipment, and heavy field tasks.
The John Deere 4020 produces 95 HP, which is well above the 60 HP average benchmark for tractors in this class.
Value rating: Excellent. This level of power makes the 4020 capable of handling plowing, tillage, PTO equipment, and large acreage work without struggling.
Oil Capacity
🛢️
What oil capacity meansOil capacity refers to how much engine oil the tractor holds. More oil helps with lubrication and heat control during longer working sessions.
The John Deere 4020 holds 8 qt / 7.6 L of engine oil, which is above the 6 qt average.
Value rating: Good. This gives the engine solid lubrication and helps maintain performance under sustained load.
Coolant Capacity
🌡️
What coolant capacity meansCoolant regulates engine temperature and prevents overheating during operation.
The John Deere 4020 has a coolant capacity of 24 qt / 22.7 L, which is significantly higher than the 10 qt average.
Value rating: Excellent. The larger cooling system supports long working hours and heavy workloads without overheating.
Fuel Tank Capacity
⛽
What fuel tank capacity meansFuel tank capacity determines how long the tractor can run before needing to refuel.
The John Deere 4020 has a 34 gal / 128.7 L fuel tank, which is much larger than the 18 gal average.
Value rating: Excellent. The larger tank allows for longer working sessions with fewer stops.
Length
📏
What tractor length meansLength affects storage, transport, and maneuverability in tight spaces.
The John Deere 4020 measures 147 in / 373 cm in length, longer than the 120 in average.
Value rating: Average. The longer frame improves stability but makes it less suitable for tight sheds or smaller properties.
Weight
⚖️
What tractor weight meansWeight improves traction, pulling ability, and stability during heavy work.
The John Deere 4020 weighs 9560 lbs / 4335 kg, well above the 5000 lbs average.
Value rating: Excellent. The heavier build provides strong traction and pulling performance, making it ideal for demanding farm tasks.
Width
↔️
What tractor width meansWidth affects stability and how easily the tractor fits through gates and tight areas.
The John Deere 4020 has a width of 96 in / 244 cm, wider than the 70 in average.
Value rating: Average. The wide stance improves stability but can make access harder in narrow spaces.
