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David Brown 4600 Selectamatic vs David Brown 50TD

Verdict: David Brown 4600 Selectamatic vs David Brown 50TD

The David Brown 4600 Selectamatic and the David Brown 50TD are both tractors — here is how they stack up on the figures that matter. David Brown 50TD leads on rated power with 50 hp against 46 hp. David Brown 4600 Selectamatic is the lighter machine (1,950 kg vs 10,450 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. David Brown 4600 Selectamatic is the newer design (1968 vs 1953). In short: choose the David Brown 50TD for outright pulling power, or the David Brown 4600 Selectamatic 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 4600 Selectamatic Tractor
David Brown
62
Fit score
Best match
Clear
David Brown 50TD Tractor
David Brown
62
Fit score
Best match
Clear
Rated power
46 hp
50 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
David BrownReference
David BrownReference
Gear 1 used for pull test.Reference
liquid-cooledReference
Original price
$4,600 (1971)Reference
Final drives
spur gearReference
Differential lock
rear diff lock standardReference
Steering
power-assist optionalReference
Drive
crawlerReference
Engine
Drawbar (tested)
28.6 kWReference
Displacement
2.7 LReference
4.1 LReference
Bore/Stroke
100 x 114 mmReference
92 x 102 mmReference
Air cleaner
oil bathReference
Compression
7.5:1Reference
Rated RPM
2200Reference
1800Reference
Operating RPM
700-2200Reference
Torque
189.8 NmReference
Torque RPM
1400Reference
Starter volts
12Reference
12Reference
Oil capacity
22.7 LReference
54.0 LReference
Coolant capacity
10.4 LReference
18.0 LReference
Power at rated engine speed
34.3 kWReference
Max power
28.6 kWReference
Fuel tank
65.9 LReference
Engine
37.3 kWReference
Belt (claimed)
33.3 kWReference
Power
37.3 kWReference
Starter
electricReference
Transmission
Gears
12 forward and 4 reverseReference
6 forward and 2 reverseReference
Clutch
dry discReference
304.8mm dry discReference
PTO & Hydraulics
PTO (claimed)
34.3 kWReference
PTO (tested)
34.3 kWReference
Hydraulic system
22.7 LReference
Type
gearReference
gearReference
Capacity
22.7 LReference
Pressure
137.9 barReference
Valves
0 to 2Reference
Pump flow
27.6 lpmReference
Rear Type
II/IReference
Control
position and draft controlReference
Rear lift (at ends)
1134 kgReference
Rear PTO
liveReference
Rear PTO Type
540/1000Reference
540 (1.375)Reference
Engine RPM
1000@2000Reference
2100@1600Reference
Power at rated PTO speed
32.2 kWReference
Capacities
Fuel
52.0 LReference
Dimensions
Wheelbase
202 cmReference
Weight
1950 kgReference
10450 to 10500 poundsReference
Front tire
6.00-16Reference
Rear tire
14.9/13-28Reference
Ag front
7.50-16Reference
Ag rear
14.9/13-28Reference
Length
308 cmReference
307 cmReference
Width
173 cmReference
45 cmReference
Height (hood)
137 cmReference
142 cmReference
Operating weight
1950 kgReference
Ballasted weight
3061 kgReference
Clearance (front axle)
50 cmReference
Clearance (drawbar)
36 cmReference
Front tread
132 to 182 cmReference
Rear tread
152 to 203 cmReference
48 Operating weight
4740 kgReference
56 Operating weight
4762 kgReference
Gauge
162 cmReference
4600 Serial Numbers
1969
900001Reference
1970
900312Reference
1971
900422Reference
Test results
Fuel use
14.0 l/hourReference
Max pull
2458 kgReference
David Brown 50TD Tracks

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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