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David Brown 4600 Selectamatic vs David Brown 950

Verdict: David Brown 4600 Selectamatic vs David Brown 950

The David Brown 4600 Selectamatic and the David Brown 950 are both tractors — here is how they stack up on the figures that matter. David Brown 4600 Selectamatic leads on rated power with 46 hp against 43 hp. David Brown 950 is the lighter machine (1,918 kg vs 1,950 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 1958). In short: choose the David Brown 4600 Selectamatic for outright pulling power, or the David Brown 950 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 950 Tractor
David Brown
62
Fit score
Best match
Clear
Rated power
46 hp
43 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
David BrownReference
David BrownReference
Gear 1 used for pull test.Reference
With 11-32 rear tires.Reference
Original price
$4,600 (1971)Reference
Final drives
spur gearReference
spur gearReference
Differential lock
rear diff lock standardReference
Steering
power-assist optionalReference
powerReference
Engine
Drawbar (tested)
28.6 kWReference
Displacement
2.7 LReference
2.7 LReference
Bore/Stroke
100 x 114 mmReference
92 x 102 mmReference
Air cleaner
oil bathReference
Compression
7.5:1Reference
17:1Reference
Rated RPM
2200Reference
2200Reference
Operating RPM
700-2200Reference
Torque
189.8 NmReference
Torque RPM
1400Reference
Starter volts
12Reference
12Reference
Oil capacity
22.7 LReference
7.4 LReference
Coolant capacity
10.4 LReference
13.6 LReference
Power at rated engine speed
34.3 kWReference
Max power
28.6 kWReference
Fuel tank
52.0 LReference
Engine
31.7 kWReference
Drawbar (claimed)
23.9 kWReference
Power
31.7 kWReference
Idle RPM
700-2200Reference
Transmission
Gears
12 forward and 4 reverseReference
6 forward and 2 reverseReference
Clutch
dry discReference
254mm dry discReference
Transmission
Twin-RangeReference
PTO & Hydraulics
PTO (claimed)
34.3 kWReference
PTO (tested)
34.3 kWReference
Hydraulic system
22.7 LReference
Type
gearReference
Capacity
22.7 LReference
Pressure
137.9 barReference
137.9 barReference
Valves
0 to 2Reference
Pump flow
27.6 lpmReference
28.4 lpmReference
Rear Type
II/IReference
II/IReference
Control
position and draft controlReference
Implematic draft and depth control (1959 on)Reference
Rear lift (at ends)
1134 kgReference
816 kgReference
Rear PTO
liveReference
liveReference
Rear PTO Type
540/1000Reference
540 (1.375)Reference
Engine RPM
1000@2000Reference
540@1800Reference
Power at rated PTO speed
32.2 kWReference
Capacities
Fuel
52.0 LReference
Dimensions
Wheelbase
202 cmReference
194 cmReference
Weight
1950 kgReference
1918 kgReference
Front tire
6.00-16Reference
6.00-16Reference
Rear tire
14.9/13-28Reference
11-32Reference
Ag front
7.50-16Reference
6.00-16Reference
Ag rear
14.9/13-28Reference
13-28Reference
Length
308 cmReference
299 cmReference
Width
173 cmReference
162 cmReference
Height (hood)
137 cmReference
Operating weight
1950 kgReference
Ballasted weight
3061 kgReference
Clearance (front axle)
50 cmReference
Clearance (drawbar)
36 cmReference
Front tread
132 to 182 cmReference
132/142/152/162/172/182/193 cmReference
Rear tread
152 to 203 cmReference
132/142/152/162/172/182/193 cmReference
Height
199 cmReference
4600 Serial Numbers
1969
900001Reference
1970
900312Reference
1971
900422Reference
Test results
Fuel use
14.0 l/hourReference
Max pull
2458 kgReference
Speeds

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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