Introduction
Belarus 420A Utility Tractor
The Belarus 420A is an agricultural utility tractor produced in Minsk, Belarus, between 1983 and 1997. Designed for general farm operations, this four-wheel drive machine is characterized by its robust mechanical construction and air-cooled engine architecture.
Engine and Performance
The tractor is powered by a 4-cylinder, 4.1-liter (253.2 ci) diesel engine. It features an air-cooled cooling system and an oil bath air cleaner. The engine delivers a rated power of 57 hp (42.5 kW) at 1800 RPM, producing a peak torque of 162 lb-ft (219.7 Nm) at 1350 RPM. The compression ratio is set at 16.5:1.
Transmission and Drivetrain
The 420A offers two transmission configurations: a standard 8-speed forward and 6-speed reverse gear arrangement, or an 11-speed forward and 8-speed reverse option. Both configurations utilize a dry disc clutch. Power is transmitted through spur gear final drives, supported by a mechanical rear differential lock to enhance traction in varying soil conditions.
Hydraulics and Hitch
The hydraulic system is an open-center type, providing a pump flow of 11.9 gpm (45.0 lpm) at a pressure of 2050 psi (141.3 bar). The tractor is equipped with two hydraulic valves and a Category II rear hitch. The hitch system includes both position and draft control, offering a rear lifting capacity of 2990 lbs (1356 kg) at the ends.
Dimensions and Operator Station
The unit features a wheelbase of 88.6 inches (225 cm) and a total weight of 7300 lbs (3311 kg). It is equipped with power steering and mechanical band brakes. The operator station is protected by a four-post Rollover Protective Structure (ROPS). The tractor utilizes 8.00-20 front tires and 13.6-38 rear tires.
Conclusion
The Belarus 420A is a straightforward, mechanically-oriented utility tractor. With its 57 hp output, four-wheel drive capability, and basic hydraulic controls, it serves as a functional tool for small to medium-sized agricultural operations requiring reliable performance without complex electronic systems.
Production Information of Belarus, 420A
- Original price was $14,500 in 1997
- Utility tractor
- Built in Minsk, Belarus
| Manufacturer | Belarus |
|---|
Dimension and Tires Information of Belarus, 420A
| Wheelbase | 88.6 inches [225 cm] |
|---|---|
| Rear tread | 54.1 to 72.4 inches [137 to 183 cm] |
| Weight | 7300 lbs [3311 kg] |
| Front tread | 53.1 to 71.1 inches [134 to 180 cm] |
| Ag front | 8.00-20 |
|---|---|
| Ag rear | 13.6-38 |
Engine Specifications of Belarus, 420A
- Belarus
- Air-cooled
- 4-cylinder
- Diesel
| Air cleaner | Oil bath |
|---|---|
| Torque | 162 lb-ft [219.7 Nm] |
| Displacement | 253.2 ci [4.1 L] |
| Bore/Stroke | 4.13x4.72 inches [105 x 120 mm] |
| Power | 57 hp [42.5 kW] |
| Rated RPM | 1800 |
| Compression | 16.5:1 |
| Starter volts | 12 |
| Firing order | 1-3-4-2 |
| Torque RPM | 1350 |
Transmission Information of Belarus, 420A
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 8 forward and 6 reverse |
| Clutch | Dry disc |
Transmission variants 2
| Gears | 11 forward and 8 reverse |
|---|---|
| Clutch | Dry disc |
- 8-speed gear
- 11-speed
Mechanical Specs of Belarus, 420A
- Four-wheel drive
- Mechanical band brakes
- Power steering
- Four-post ROPS.
| Final drives | Spur gear |
|---|---|
| Differential lock | Mechanical rear |
Power Information of Belarus, 420A
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540 (1.375) |
| Engine RPM | 540@1620 |
Hydraulics Specifications of Belarus, 420A
| Type | Open center |
|---|---|
| Pump flow | 11.9 gpm [45.0 lpm] |
| Valves | 2 |
| Capacity | 4.1 gal [15.5 L] |
| Pressure | 2050 psi [141.3 bar] |
Three-Point Hitch of Belarus, 420A
| Rear Type | II |
|---|---|
| Control | Position and draft control |
| Rear lift (at ends) | 2990 lbs [1356 kg] |
Electrical System of Belarus, 420A
| Charging system | Alternator |
|---|---|
| Charging amps | 50 |
| Battery volts | 12 |
Where it sits
With 57 HP, the Belarus 420A sits between T-425 (55 HP) and 406 (58 HP) in Belarus's range. Its power puts it in the 40th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the Belarus 420A have?
The Belarus 420A delivers 57 HP.
What years was the Belarus 420A produced?
The Belarus 420A was produced in 1983-1997.
What engine does the Belarus 420A have?
The Belarus 420A is powered by a Diesel, 4-cylinder engine.
What transmission does the Belarus 420A use?
The Belarus 420A uses a Gear transmission.
How much does the Belarus 420A weigh?
The Belarus 420A weighs 7300 lbs [3311 kg].
Is the Belarus 420A 4WD?
The Belarus 420A is available in 4WD.