David Brown

David Brown 900

The David Brown 900 is a row-crop tractor produced from 1956 to 1958 by David Brown. It features multiple engine options including diesel, kerosene, and gasoline 2.7L 4-cylinder liquid-cooled engines. The tractor has a 6-speed transmission with 6 forward and 2 reverse gears, manual steering, mechanical drum brakes, and an open operator station. It offers a rear Type I hitch with 1800 lbs lift capacity and a rear PTO with 540 rpm. The tractor weighs between 3900 to 4000 pounds depending on the fuel type and has a wheelbase of 72 inches. It is designed for agricultural use with various tire options and belt pulley specifications.

Power40 hp

Founded1956 - 1958

Model900

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Technical Specifications

Detailed specifications and technical data for David Brown 900

Power

Engine power	45.5 hp (33.9 kW)
Belt (claimed) kerosene	32 hp (23.9 kW)
Belt (claimed) diesel/gas	35 hp (26.1 kW)
Belt (claimed) high-compression	40 hp (29.8 kW)

Tires

Ag rear	11.25x28
Ag front	6.00x16
Additional ag rear	5.50x16
Standard tires (ag)	Front: 11.00x28, Rear: (not specified)
Alternate front tire	13x28

Engine

Power	40 hp (29.8 kW)
Torque	105 lb-ft (142.4 Nm)
Rated RPM	2200
Torque RPM	1300
Bore/Stroke	3.625x4.00 inches (92 x 102 mm)
Compression	15.9:1
Displacement	165 ci (2.7 L)
Firing order	1-2-4-3
Oil capacity	7 qts (6.6 L)
Starter type	electric
Engine options	David Brown 2.7L 4-cyl diesel, David Brown 2.7L 4-cyl kerosene, David Brown 2.7L 4-cyl gasoline
Coolant capacity	14 qts (13.2 L)
Power (gasoline)	40.5 hp (30.2 kW)
Power (kerosene)	37.5 hp (28.0 kW)
Torque (kerosene)	110 lb-ft (149.2 Nm)
David Brown AD4/30H	diesel, 4-cylinder, liquid-cooled
David Brown AG4/30H	gasoline, 4-cylinder, liquid-cooled
David Brown AK4/30H	kerosene, 4-cylinder, liquid-cooled
David Brown PAG4/30H	high-compression gasoline engine for premium fuel, 4-cylinder, liquid-cooled
Torque RPM (kerosene)	1000
Compression (gasoline)	5.5:1
Compression (kerosene)	4.7:1
Fuel system (gasoline)	Solex 30FV carburetor
Fuel system (kerosene)	Slex 30FV carburetor
Intake valve clearance	0.015 inches (hot) (0.381 mm)
Exhaust valve clearance	0.015 inches (hot) (0.381 mm)
Starter volts (gasoline)	12
Starter volts (kerosene)	12
Power (high-compression gasoline)	45.5 hp (33.9 kW)
Exhaust valve clearance (gasoline)	0.022 inches (hot) (0.559 mm)
Exhaust valve clearance (kerosene)	0.022 inches (hot) (0.559 mm)
Compression (high-compression gasoline)	7:1
Fuel system (high-compression gasoline)	Solex 30FV carburetor
Starter volts (high-compression gasoline)	12
Exhaust valve clearance (high-compression gasoline)	0.022 inches (hot) (0.559 mm)

Dimensions

Width	65 inches (165 cm)
Height	77.75 inches (197 cm)
Length	113 inches (287 cm)
Wheelbase	72 inches (182 cm)
Rear tread	52/56/60/64/68/72/86 inches (132/142/152/162/172/182/218 cm)
Front tread	52/56/60/64/68/72/86 inches (132/142/152/162/172/182/218 cm)
Diesel Weight	4000 lbs (1814 kg)
Height (hood)	54.5 inches (138 cm)
Kerosene Weight	3900 lbs (1769 kg)
Clearance (front axle)	16 inches (40 cm)

Mechanical

Drive	Two-wheel drive
Brakes	Mechanical drum brakes
Steering	manual
Operator station	Open operator station

Production

Type	Row-Crop tractor
Manufacturer	David Brown
Years produced	1956 - 1958

Belt Pulley

RPM	1405
Speed	3125 ft/min (952.50 meters/min)
Width	5.75 inches (14 cm)
Diameter	8.5 inches (21 cm)

Transmission

Gears	6 forward and 2 reverse
Clutch	254mm dry disc
Gear ranges	Three gears (1-3) plus reverse (R) in two ranges (low/high)
Oil capacity	16 qts (15.1 L)
Transmission manufacturer	David Brown

Tractor hitch