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Belarus 405A vs Belarus 420A
Verdict: Belarus 405A vs Belarus 420A
The Belarus 405A and the Belarus 420A are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 51 hp. Belarus 420A is the lighter machine (3,311 kg vs 3,470 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Belarus 405A is the newer design (1994 vs 1983). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
Belarus
62
Fit score
Best match
Clear
Belarus
62
Fit score
Best match
Clear
Rated power
51 hp
51 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
BelarusReference
BelarusReference
air-cooledReference
Gear 3 used for pull test.Reference
Final drives
spur gearReference
spur gearReference
Differential lock
mechanical rearReference
mechanical rearReference
Variants
400A
2WD ROPSReference
2WD ROPSReference
405A
2WD CabReference
2WD CabReference
420A
4WD ROPSReference
4WD ROPSReference
425A
4WD CabReference
4WD CabReference
Engine
Engine
42.5 kWReference
42.5 kWReference
Displacement
4.1 LReference
4.1 LReference
Bore/Stroke
105 x 120 mmReference
105 x 120 mmReference
Power
42.5 kWReference
42.5 kWReference
Air cleaner
oil bathReference
oil bathReference
Compression
16.5:1Reference
16.5:1Reference
Rated RPM
1800Reference
1800Reference
Torque
219.7 NmReference
219.7 NmReference
Torque RPM
1350Reference
1350Reference
Firing order
1-3-4-2Reference
1-3-4-2Reference
Drawbar (tested)
—
32.6 kWReference
Starter volts
—
12Reference
Power at rated engine speed
—
37.8 kWReference
Max power
—
32.6 kWReference
Transmission
Transmission
sliding gearReference
—
Gears
8 forward and 6 reverseReference
11 forward and 8 reverseReference
Clutch
—
dry discReference
PTO & Hydraulics
PTO (claimed)
38.0 kWReference
38.0 kWReference
Hydraulic system
15.5 LReference
15.5 LReference
Type
open centerReference
gearReference
Capacity
15.5 LReference
15.5 LReference
Pressure
141.3 barReference
141.3 barReference
Valves
2Reference
2Reference
Pump flow
45.0 lpmReference
45.0 lpmReference
Rear Type
IIReference
IIReference
Control
position and draft controlReference
position and draft controlReference
Rear lift (at ends)
1356 kgReference
1356 kgReference
Rear PTO
independentReference
independentReference
Rear PTO Type
540 (1.375)Reference
540 (1.375)Reference
Engine RPM
540@1620Reference
540@1620Reference
PTO (tested)
—
37.8 kWReference
Capacities
Fuel
73.8 LReference
73.8 LReference
Dimensions
Wheelbase
214 cmReference
225 cmReference
Weight
3470 kgReference
3311 kgReference
Front tire
6.5-16Reference
8.00-20Reference
Rear tire
13.6-38Reference
13.6-38Reference
Ag front
6.5-16Reference
8.00-20Reference
Ag rear
13.6-38Reference
13.6-38Reference
Front tread
—
134 to 180 cmReference
Rear tread
—
137 to 183 cmReference
405A Serial Numbers
Location:
Serial number plate on the rear of the tractor, on the toolbox.Reference
Serial number plate on the rear of the tractor, on the toolbox.Reference
Electrical
Charging system
alternatorReference
alternatorReference
Charging amps
50Reference
50Reference
Battery volts
—
12Reference
420A Serial Numbers
1983
—
273449Reference
1984
—
276391Reference
1985
—
304013Reference
1986
—
327204Reference
1987
—
357102Reference
1988
—
389751Reference
1989
—
400329Reference
Test results
Fuel use
—
11.7 l/hourReference
Max pull
—
3372 kgReference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.