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Years in Production / 1960–1965
David Brown
850
Explore the specifications, hardware, and original references for the David Brown 850.
35hp
Source index power
2WD Only
Drive
1960–1965
Production years
David Brown
Manufacturer
850 / 01
At a glance
Production
Utility tractor
Built in Meltham Mills, Huddersfield, England
- Manufacturer
- David Brown
Mechanical
Two-wheel drive
Manual steering
Differential mechanical expanding shoe brakes
Open operator station.
- Final Drives
- spur gear
Hitch
- Rear Type
- I
Pto
- Rear Pto
- transmission
- Rear Pto
- live OptOptional
- Clutch
- dry disc
- Rear Type
- 540/1000 (1.375)
- Engine Rpm
- 540@1800
- Engine Rpm
- 540@1100
- Engine Rpm
- 1000@2000
850 / 02
Under the hood
Engine Detail (Option 1)
David Brown
diesel
4-cylinder
liquid-cooled
- Displacement
- 154 ci2.5 L
- Bore Stroke
- 3.50x4.00 inches89 x 102 mm
- Power
- 35 hp26.1 kW
- Fuel System
- direct injection
- Air Cleaner
- oil bath
- Compression Ratio
- 17:1
- Rated Rpm
- 2000
- Idle Rpm
- 700-2000
- Starter Volts
- 12
- Oil Capacity
- 10.1 qts9.6 L
- Coolant Capacity
- 14.4 qts13.6 L
- Fuel Type
- diesel
- Cylinders
- 4
- Cooling
- liquid-cooled
Engine Detail (Option 2)
David Brown
gasoline
4-cylinder
liquid-cooled
- Displacement
- 154 ci2.5 L
- Bore Stroke
- 3.50x4.00 inches89 x 102 mm
- Air Cleaner
- oil bath
- Compression Ratio
- 6.25:1
- Rated Rpm
- 2000
- Starter Volts
- 12
- Fuel Type
- gasoline
- Cylinders
- 4
- Cooling
- liquid-cooled
Engine Options
David Brown 2.5L 4-cyl diesel
David Brown 2.5L 4-cyl gasoline
- Fuel Tank
- 10.6 gal40.1 L
850 / 03
Gears & controls
Transmission
Three gears (1-3) plus reverse (R) in two ranges (low and high).
- Transmission Type
- unsynchronized gear
- Gears
- 6 forward and 2 reverse
- Clutch
- dry disc
850 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 113.5 in288 cm
- Height
- 51.75 in131 cm
- Wheelbase
- 75.25 in191 cm
- Front tread
- 52 in132 cm
- Rear tread
- 52 in132 cm
Dimensions And Tires
- Wheelbase
- 75.25 inches191 cm
- Weight
- 3750 to 4179 pounds
- Front Tire
- 5.00-15
- Rear Tire
- 10-28
Tires And Tracks
- Front Ag
- 5.00-15
- Rear Ag
- 10-28
850 / 05
Tractor Photos
See it in action
Videos
Watch David Brown 850 videos from their original YouTube creators.
850 / 07
Tests (NTTL)
Nebraska Tractor Test 734
Diesel 6-speed 2WDMarch 12 - 26, 1960
PTO performance
Drawbar performance
Gear 3 used for power test.
- Id
- 734
- Power At Rated Engine Speed
- 33.56 hp25.0 kW
- Fuel Use
- 2.2 gal/hour8.3 l/hour
- Fuel Use
- 1.7 gal/hour6.4 l/hour
- Fuel Use
- 2.3 gal/hour8.7 l/hour
- Power At Rated Pto Speed
- 28.24 hp21.1 kW
- Max Power
- 30.93 hp23.1 kW
Nebraska Tractor Test 735
Gasoline 6-speed 2WDMarch 14 - April 2, 1960
PTO performance
Drawbar performance
Gear 3 used for power test.
- Id
- 735
- Power At Rated Engine Speed
- 32.00 hp23.9 kW
- Fuel Use
- 3.0 gal/hour11.4 l/hour
- Fuel Use
- 2.6 gal/hour9.8 l/hour
- Power At Rated Pto Speed
- 28.52 hp21.3 kW
- Max Power
- 27.64 hp20.6 kW