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David Brown 50D vs David Brown 990 Selectamatic

Verdict: David Brown 50D vs David Brown 990 Selectamatic

The David Brown 50D and the David Brown 990 Selectamatic are both tractors — here is how they stack up on the figures that matter. David Brown 990 Selectamatic leads on rated power with 55 hp against 50 hp. David Brown 50D is the lighter machine (2,780 kg vs 4,235 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. David Brown 990 Selectamatic holds more fuel (60.9 L vs 54.9 L) for longer stints between fills. David Brown 990 Selectamatic is the newer design (1961 vs 1953). In short: choose the David Brown 990 Selectamatic for outright pulling power, or the David Brown 50D if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Fit & specs
David Brown 50D Tractor
David Brown
62
Fit score
Best match
Clear
David Brown 990 Selectamatic Tractor
David Brown
62
Fit score
Best match
Clear
Rated power
50 hp
55 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
David BrownReference
David BrownReference
Steering
manualReference
hydrostatic powerReference
Differential lock
mechanical rearReference
Engine
With 14x30 rear tres,Reference
With 12.4/11-36 rear tires.Reference
Fuel tank
54.9 LReference
60.9 LReference
Engine
37.3 kWReference
Displacement
4.1 LReference
3.2 LReference
Bore/Stroke
92 x 102 mmReference
100 x 102 mmReference
Power
37.3 kWReference
Compression
16:1Reference
17:1Reference
Rated RPM
1800Reference
2200Reference
Idle RPM
700-1800Reference
700-2200Reference
Oil capacity
22.7 LReference
23.0 LReference
Coolant capacity
18.9 LReference
14.0 LReference
Engine (gross)
41.0 kWReference
Drawbar (claimed)
3.0 kWReference
Plows
4Reference
Drawbar (tested)
32.3 kWReference
Power (gross)
41.0 kWReference
Air cleaner
oil bathReference
Torque
189.8 NmReference
Torque RPM
1400Reference
Starter
electricReference
Starter volts
12Reference
Power at rated engine speed
38.8 kWReference
Max power
32.3 kWReference
Transmission
Type
gearReference
partially synchronizedReference
Gears
6 forward and 2 reverseReference
12 forward and 4 reverseReference
Clutch
10-inch dry discReference
dry discReference
PTO & Hydraulics
Rear PTO Type
540Reference
540/1000 (1.375)Reference
PTO (claimed)
39.4 kWReference
PTO (tested)
38.8 kWReference
Pressure
137.9 barReference
Pump flow
27.3 lpmReference
Rear Type
II/IReference
Control
position and draft controlReference
Rear lift (at ends)
907 kgReference
Rear PTO
liveReference
Engine RPM
1000@2000Reference
Power at rated PTO speed
37.0 kWReference
Dimensions
Wheelbase
207 cmReference
Weight
2780 kgReference
4235 to 5795 poundsReference
Front tire
7.50-18Reference
6.00-19Reference
Rear tire
14-30Reference
Ag front
7.50-18Reference
Ag rear
14-30Reference
Length
342 cmReference
Width
187 cmReference
162 cmReference
Height (hood)
165 cmReference
Ground clearance
33 cmReference
2WD Wheelbase
200 cmReference
4WD Wheelbase
195 cmReference
2WD Rear tire
12.4-36Reference
2WD Standard tires (ag)
Front: 6.00-19. Rear: 12.4-36Reference
4WD Standard tires (ag)
Front: 9.5-24. Rear: 12.4-36Reference
2WD Length
320 cmReference
4WD Length
322 cmReference
2WD Clearance (front axle)
54 cmReference
4WD Clearance (front axle)
33 cmReference
2WD Clearance (drawbar)
38 cmReference
4WD Clearance (drawbar)
37 cmReference
2WD
2313 kgReference
4WD
2628 kgReference
2WD Shipping
1920 kgReference
Steering wheel
167 cmReference
50D Serial Numbers
1953
VAD/6 10001Reference
1954
VAD/6 ?????Reference
1955
VAD/6 10400Reference
1956
VAD/6 ?????Reference
1957
VAD/6 ?????Reference
1958
VAD/6 ?????Reference
Final
VAD/6 11260Reference
Speeds
990 Serial Numbers
1961
440001Reference
1962
441323Reference
1963
450376Reference
1964
460376Reference
1965
472273Reference
1966
483768Reference
1967
496283Reference
1968
504690Reference
1969
808150Reference
1970
818301Reference
1971
826009Reference
1972
850600Reference
1973
854403Reference
1974
859367Reference
1975
863900Reference
1976
11070001Reference
1977
11080236Reference
1978
11089141Reference
1979
11096828Reference
1980
11104577Reference
Location:
Serial number on the right side of the tractor frame.Reference
Electrical
Charging system
generatorReference
Battery volts
12Reference
Battery AH
96Reference
Capacities
2WD Max capacity
2862 kgReference
4WD Max capacity
2628 kgReference
David Brown 990 Height
ROPS
241 cmReference
Exhaust
226 cmReference
Test results
Fuel use
11.7 l/hourReference
Max pull
3239 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.

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