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David Brown 990 Tractor

David Brown Tractor Parts 990

Online Catalog has David Brown Tractor Parts 990 descriptions, pictures, and prices.

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David Brown Tractor Parts 990 Catalog

Tractor Parts Catalog

David Brown 990 Tractor

David Brown 990 Tractor

Preview – the David Brown 990 Tractor

The David Brown 990 tractor was manufactured in Meltham Mills, Huddersfield, in England. Production of this model began in 1971, and discontinued in 1980. There was a serial number break in December of 1976.

Lubricants and Fluids: Quick View

Fuel Diesel Fuel 15.9 gallons 60.2 liters
Engine Motor Oil 7.9 quarts 7.5 liters
Coolant: 14.8 quarts 14.0 liters
Hydraulic Fluid The david bBrown 990 tractor was fitted with the new Selectamatic hydraulic system. while the models 990A and 990B were fitted with the older Implematic hydraulic system.
Pressure: 2000 psi 138 bar
Total Flow 7 gpm 27 lpm
Transmission Oil 24.3 quarts 23.0 liters

David Brown 990 3-Point Hitch:

Rear Type: I,II
Rear Lift: 2000 lbs 907 kg
4250 lbs 1928 kg

Power Take-off (PTO):

Rear PTO: 540/1000
-unknown-

Dimensions & Tires:

Wheelbase: 29 inches 201 cm
Weight 5175 to 8195 pounds 2347-3717 kg
Front tire: 6.00-19
Rear tire: 12.4/11-36

David Brown 990 Drawbar, Engine & PTO Power:

Engine (net): 57.20 hp 42.65 kw
Drawbar (tested): 45.68 hp 34.06 kw
PTO (tested): 53.77 hp 40.10 kw

Mechanical Desriptions

Chassis: 4×2 2WD. The tractors are all 2WD, however some models will be power assist.
Steering: Most tractors are manually drive, however, some models are fitted with the optional hydrostatic power cyclinder to provide assistance in steering. The steering cylinder is controlled by the orbitol steerin valve in the hdrostatic steering models.
Brakes: differential mechanical expanding shoe
Cab: Cab optional.

Electrical & Ignition Systems

Ground:
Battery Volts: 12. The original battery was manufatucred by Exide .
Battery Amp-hours: 96
Alternator Description The alternator was manufactured by lucas. Lucas part number is 23623, (Case IH part number K925009). This is 12V and 45amps.
Starter Description Depending on the model, and year of amnufactur, the starter can eithe rbe lucas (part number 26278, except 885) or manufactured by Bosch. the Case IH part number is K954700 with the solenoid part number K965139.

David Brown 990 Engine:Model 449001

Type: David Brown
Fuel/Aspiration. Diesel
Cylinders: 4
Valves: -unknown-
Bore/Stroke: 3.625 inches x 4.500 inches
92 mm x 114 mm
Displacement: 185.8 cubic inch x 3.0 liters
Cooling: Liquid
Air Cleaner: Oil bath
Compression: 17:01
Rated RPMs: 2200

David Brown 990 Engine:AD4/47

Type: David Brown
Fuel/Aspiration diesel
Cylinders: 4
Valves: -unknown-
Bore/Stroke: 3.94 inches x 4.00 inches
100 mm x 102 mm
Displacement: 194.90 cubic inch x 3.19 liters
Cooling: liquid
Air Cleaner: oil bath
Compression: 17:01
Rated RPMs: 2200
Oil capacity: 8 qts 7 L

Transmission:

Gears: 6 forward and 2 reverse, Partially synchronised, Partially synchronised
Comments: One of many different gearboxes are found on these tractors. This can be the 6-speed Synchromesh (livedrive) , 6-speed Non-synchromesh (non-livedrive) , 12-speed Synchromesh (livedrive) , 12-speed Synchromesh, 6-Speed (complete With Differential), Livedrive , or the 12-Speed (complete With Differential), Livedrive,

Average Dimensions:

Weight (Operating) 5175 lbs 2347 kg
Weight (ballasted): 8195 lbs 3717 kg
Drawbar Capacity: 3000 lbs 1361 kg
(extended) 2500 lbs 1134 kg
Wheelbase: 79 inches 201 cm
Length: 126 inches 320 cm
Width: 67 inches 170 cm
Height (ROPS): 101 inches 257 cm
Clearance (front axle): 21 inches 53 cm
Clearance (drawbar): 15 inches 38 cm

David Brown 990 Tires:

Ag front: 6.00-19 7.50-16
Ag rear: 12.4/11-36 13.6/12-36 16.9/14-30

Nebraska Tractor Test 903:

Test Date: June 11-19, 1965
Type: 6-speed 2WD
Engine: 186 diesel
PTO power (rated engine speed): 51.60 hp 38.48 kW
PTO fuel use (engine speed): 3.40 gal/hour 12.87 l/hour
PTO power (rated PTO speed): 48.49 hp 36.16 kW
PTO fuel use (PTO speed): 3.00 gal/hour 11.36 l/hour
Drawbar power (max): 43.47 hp 32.42 kW
Drawbar fuel use (max): 3.40 gal/hour 12.87 l/hour
Drawbar pull (max): 6039.00 lbs 2739.24 kg
Max pull gear: 1

Nebraska Tractor Test 977:

Test Date: May 27 – June 3, 1968
Type: 6-speed 2WD
Engine: 195 diesel
PTO power (rated engine speed): 52.07 hp 38.83 kW
PTO fuel use (engine speed): 3.20 gal/hour 12.11 l/hour
PTO power (rated PTO speed): 49.65 hp 37.02 kW
PTO fuel use (PTO speed): 3.00 gal/hour 11.36 l/hour
Drawbar power (max): 43.31 hp 32.30 kW
Drawbar fuel use (max): 3.10 gal/hour 11.73 l/hour
Drawbar pull (max): 7142.00 lbs 3239.56 kg
Max pull gear: 1-Lo

Nebraska Tractor Test 1144:

Test Date: September 17 – October 1, 1973
Type: 12-Speed 2WD
Engine: 195 diesel
PTO power (rated engine speed): 53.77 hp 40.10 kW
PTO fuel use (engine speed): 3.50 gal/hour 13.25 l/hour
PTO power (rated PTO speed): 50.48 hp 37.64 kW
PTO fuel use (PTO speed): 3.30 gal/hour 12.49 l/hour
Drawbar power (max): 45.68 hp 34.06 kW
Drawbar fuel use (max): 3.40 gal/hour 12.87 l/hour
Drawbar pull (max): 7335.00 lbs 3327.10 kg
Max pull gear: HS-1

David Brown 990 Tractor Year & Prices: Average Trade In Value, and Used Retail Price

Average Trade In Price
Average Retail Price

Tractor Year and Serial Number

Average Price of New Tractor US$
US$
Give/ Take
US$
US$
Give/Take US$
1961: 440001 $4,100 $1,695 $335 $3,080 $230
1962: 441323 $4,100 $1,710 $330 $3,110 $230
1963: 450376 $4,300 $1,725 $325 $3,130 $230
1964: 460376 $4,500 $1,725 $325 $3,170 $220
1965: 472273 $4,600 $1,725 $325 $3,210 $210
1966: 483768 $4,900 $1,770 $290 $,3240 $200
1967: 496283 $5,000 $1,780 $280 $3,250 $220
1968: 504690 $5,300 $1,790 $270 $3,255 $235
1969: 808150 $5,600 $1,805 $255 $3,240 $240
1970: 818301 $6,100 $1,800 $260 $3,225 $245
1971: 826009 $6,700 $1,800 $260 $3,255 $215
1972: 850600 $7,200 $1,920 $290 $3,495 $235
1973: 854403 $7,600 $1,985 $305 $3,615 $265
1974: 859367 $8,200 $2,090 $330 $3,831 $311
1975: 863900 $8,800 $2,200 $350 $4,070 $330
1976: 11070001 $9,200 $2,260 $370 $4,260 $300
1977: 11080236 $9,800 $2,360 $390 $4,515 $295
1978: 11089141 $10,400 $2,480 $390 $4,825 $295
1979: 11096828 $10,900 $2,585 $405 $4,950 $270

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