| Production | |
| Manufacturer | Belarus | 
| Utility tractor | |
| Built in Minsk, Belarus | |
| Original price was $14,500 in 1997 | |
| Belarus 420A Engine | |
| Belarus 4.1L 4-cyl diesel | |
|  Engine details ... | 
| Belarus 420A Transmissions | |
| 8-speed gear | |
| 11-speed | |
|  Transmission details ... | 
| Belarus 420A Power | |
| Engine | 57 hp 42.5 kW | 
| PTO (claimed) | 51 hp 38.0 kW | 
| Drawbar (tested) | 43.73 hp 32.6 kW | 
| PTO (tested) | 50.68 hp 37.8 kW | 
|  Performance test details ... | |
| Mechanical | |
| Four-wheel drive | |
| Final drives | spur gear | 
| Differential lock | mechanical rear | 
| Power steering | |
| Mechanical band brakes | |
| Four-post ROPS. | |
| Photos | |
|  | |
|  Belarus 420A photos... | |
| Capacity | |
| Fuel | 19.5 gal 73.8 L | 
| Hydraulic system | 4.1 gal 15.5 L | 
| Hydraulics | |
| Type | open center | 
| Capacity | 4.1 gal 15.5 L | 
| Pressure | 2050 psi 141.3 bar | 
| Valves | 2 | 
| Pump flow | 11.9 gpm 45.0 lpm | 
| Tractor hitch | |
| Rear Type | II | 
| Control | position and draft control | 
| Rear lift (at ends) | 2990 lbs 1356 kg | 
| Power Take-off (PTO) | |
| Rear PTO | independent | 
| Rear PTO Type | 540 (1.375) | 
| Engine RPM | 540@1620 | 
| Dimensions & Tires | |
| Wheelbase | 88.6 inches 225 cm | 
| Weight | 7300 lbs 3311 kg | 
| Front tire | 8.00-20 | 
| Rear tire | 13.6-38 | 
|  Full dimensions and tires ... | |
| 420A Serial Numbers | |
| Location: | Serial number plate on the rear of the tractor, on the toolbox. | 
| 1983 | 273449 | 
| 1984 | 276391 | 
| 1985 | 304013 | 
| 1986 | 327204 | 
| 1987 | 357102 | 
| 1988 | 389751 | 
| 1989 | 400329 | 
| FAQ: How to read a serial number table. | |
| Electrical | |
| Charging system | alternator | 
| Charging amps | 50 | 
| Battery volts | 12 | 
| References | |
|  | |
| 400 Series published in 1996, by Belarus | |
| 420/400AN published by Belarus | |
| 400A/420A published by Belarus | 
| Page information | |
|  | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on March 29, 2023 |