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David Brown 40TD vs David Brown 850

Verdict: David Brown 40TD vs David Brown 850

The David Brown 40TD and the David Brown 850 are both tractors — here is how they stack up on the figures that matter. David Brown 40TD leads on rated power with 39 hp against 34 hp. David Brown 850 is the lighter machine (3,750 kg vs 8,050 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. David Brown 40TD holds more fuel (263.8 L vs 40.1 L) for longer stints between fills. In short: choose the David Brown 40TD for outright pulling power, or the David Brown 850 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 40TD Tractor
David Brown
62
Fit score
Best match
Clear
David Brown 850 Tractor
David Brown
62
Fit score
Best match
Clear
Rated power
39 hp
34 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
David BrownReference
David BrownReference
liquid-cooledReference
With 10-28 rear tires.Reference
Drive
crawlerReference
Final drives
spur gearReference
Engine
Fuel tank
263.8 LReference
40.1 LReference
Drawbar (claimed)
24.6 kWReference
22.4 kWReference
Displacement
2.7 LReference
2.5 LReference
Bore/Stroke
92 x 102 mmReference
89 x 102 mmReference
Rated RPM
2200Reference
2000Reference
Starter
electricReference
Starter volts
12Reference
12Reference
Oil capacity
54.0 LReference
9.6 LReference
Coolant capacity
15.9 LReference
13.6 LReference
Engine
26.1 kWReference
Drawbar (tested)
23.1 kWReference
Power
26.1 kWReference
Fuel system
direct injectionReference
Air cleaner
oil bathReference
Compression
6.25:1Reference
Idle RPM
700-2000Reference
Power at rated engine speed
23.9 kWReference
Max power
20.6 kWReference
Transmission
Type
gearReference
unsynchronized gearReference
Gears
6 forward and 2 reverseReference
6 forward and 2 reverseReference
Clutch
305mm dry discReference
dry discReference
PTO & Hydraulics
PTO (claimed)
29.1 kWReference
24.6 kWReference
Rear PTO Type
540 (1.375)Reference
540/1000 (1.375)Reference
Engine RPM
2360@1800Reference
1000@2000Reference
PTO (tested)
25.0 kWReference
Rear Type
IReference
Rear PTO
liveReference
Power at rated PTO speed
21.3 kWReference
Dimensions
Weight
8050 to 8450 poundsReference
3750 to 4179 poundsReference
Length
287 cmReference
288 cmReference
48G Width
160 cmReference
56G Width
180 cmReference
Height (hood)
157 cmReference
131 cmReference
Gauge
142 cmReference
48G Shipping
3651 kgReference
56G Shipping
3696 kgReference
48G Operating
3787 kgReference
56G Operating
3832 kgReference
Wheelbase
191 cmReference
Front tire
5.00-15Reference
Rear tire
10-28Reference
Ag front
5.00-15Reference
Ag rear
10-28Reference
Front tread
132/142/152/162/172/182 cmReference
Rear tread
132/142/152/162/172/182 cmReference
Shipping
1701 kgReference
Gas Operating
1857 kgReference
Diesel Operating
1895 kgReference
Ballasted
2664 kgReference
David Brown 40TD Tracks
Width
40 cmReference
Test results
Fuel use
9.8 l/hourReference
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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