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Belarus 420A Specs ( 1983-1997 )

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Production

Description Utility tractor / Built in Minsk, Belarus / Original price was $14,500 in 1997
Manufacturer Belarus

Engine

Engine type Belarus 4.1L 4-cyl diesel
Air cleaner oil bath
Bore/Stroke 4.13x4.72 inches (105 x 120 mm)
Compression 16.5:1
Description Belarus / diesel / 4-cylinder / air-cooled
Displacement 253.2 ci (4.1 L)
Firing order 1-3-4-2
Power 57 hp (42.5 kW)
Rated RPM 1800
Starter volts 12
Torque 162 lb-ft (219.7 Nm)
Torque RPM 1350
Drawbar (tested) 43.73 hp (32.6 kW)
PTO (claimed) 51 hp (38.0 kW)
PTO (tested) 50.68 hp (37.8 kW)

Transmission

Clutch dry disc / dry disc
Gears 8 forward and 6 reverse / 11 forward and 8 reverse
Type gear
Transmission type 8-speed gear / 11-speed
Transmission type 8-speed gear / 11-speed

Mechanical

Description Power steering / Mechanical band brakes / Four-post ROPS.
Differential lock mechanical rear
Drive type Four-wheel drive
Final drives spur gear

Capacity

Fuel 19.5 gal (73.8 L)
Hydraulic system 4.1 gal (15.5 L)

Hydraulics

Capacity 4.1 gal (15.5 L)
Pressure 2050 psi (141.3 bar)
Pump flow 11.9 gpm (45.0 lpm)
Type open center
Valves 2

Hitch

Control position and draft control
Rear lift (at ends) 2990 lbs (1356 kg)
Rear Type II

PTO

Engine RPM 540@1620
Rear PTO independent
Rear PTO Type 540 (1.375)

Electrical

Battery volts 12
Charging amps 50
Charging system alternator

Dimensions & Tires

Ag front 8.00-20
Ag rear 13.6-38
Front tread 53.1 to 71.1 inches (134 to 180 cm)
Rear tread 54.1 to 72.4 inches (137 to 183 cm)
Weight 7300 lbs (3311 kg)
Wheelbase 88.6 inches (225 cm)
Front tire 8.00-20
Rear tire 13.6-38
Weight 7300 lbs (3311 kg)
Wheelbase 88.6 inches (225 cm)

420A Serial Numbers

1983 273449
1984 276391
1985 304013
1986 327204
1987 357102
1988 389751
1989 400329
Description FAQ: How to read a serial number table.
Location: Serial number plate on the rear of the tractor, on the toolbox.

Nebraska Tractor Test 1638

Description Diesel 11-speed 4WDMay 11 - 21, 1990Link: Nebraska Tractor Test 1638 file / PTO performance / Drawbar performance / Gear 6 used for power test. / Gear 3 used for pull test.
Fuel use 3.1 gal/hour (11.7 l/hour) / 3.1 gal/hour (11.7 l/hour)
Max power 43.73 hp (32.6 kW)
Max pull 7,435 lbs (3372 kg)
Power at rated engine speed 50.68 hp (37.8 kW)

References

Description 400 Series published in 1996, by Belarus / 420/400AN published by Belarus / 400A/420A published by Belarus

Variants

400A 2WD ROPS
405A 2WD Cab
420A 4WD ROPS
425A 4WD Cab