David Brown 3800 Selectamatic VS Allis Chalmers WD45 specs comparison

David Brown 3800 Selectamatic 1968 comparison online with competitors

David Brown 3800 Selectamatic

General Infos
Make David Brown
Model 3800 Selectamatic
Country United states
Production From 1968  Until 1971
Price 4,000  USD
Tractor type Utility tractor
Fuel gasoline
Service repair manual David Brown 3800 Selectamatic Manual

Dimensions, sizes and tires
AG front tires 14.9/13-24
AG rear tires 13.6/12-28
Lawn front tires -
Lawn rear tires -
Indus front tires -
Indus rear tires -
Weight 3885 lbs or 1762 kg
Length 115.625 inches [293 cm]
Width 64.5 inches [163 cm] (min)
Height -
Wheelbase 76 inches [193 cm]
Ground clearance -
Turning radius -
Rear tread size 48 to 76 inches
Front tread size 48 to 72 inches
Turning radius -

Horsepower and engin specs
Engine capacity 146.1 ci or 2.4 L
Cylinders 3 cylinders
Engine power -
Engine RPM 2200 (rpm)
Torque 115 lb-ft or 155.9 Nm
Torque RPM 1400 (rpm)
Fuel type gasoline
Fuel injection -
Fuel tank size 9.5 gal or 36.0 L
Oil capacity 6.75 qts or 6.4 L
Oil change -
Starter motor -
Starter volts 12 V
Parts And Accessories David Brown 3800 Selectamatic Parts
Electrical and battery specs
Batteries number 1
Batteries voltage 12 V
Battries Amps -
Cold Amps -
Ground force -
Charging system -
Charging Volts -
Charging Amps -
Clutch and gearbox specs
Trans system -
Trans type gear
Trans gears 12 forward and 4 reverse
Clutch system dry disc
Cabine and mechanical specs
Wheel drive 4x2 2WD
Final drive spur gear
Steering manual
Braking system mechanical shoe
Cabin type Open operating station
Differentiel lock rear diff lock standard
Hydraulics specifications
System Selectamatic
Valves -
Pump flow 7.3 gpm or 27.6 lpm
SVC flow -
Steering flow -
Tank capacity 6 gal or 22.7 L
Hydraulic pressure 2000 psi or 137.9 bar
Max flow -
Drawbar specifications
Drawbar type -
Claimed power -
Drawbar horsepower 32.13 hp or 24.0 kW
Fuel consumption 3.4 gal/hour or 12.9 l/hour
Pulling power 4419 lbs or 2004 kg
Power take-off (PTO) specs
Claimed power 39 hp or 29.1 kW
Real power 37.24 hp or 27.8 kW
Engine @RPM -
PTO Clutch -
Rear PTO live
Rear PTO RPM 540 (rpm)
Front PTO -
Front PTO RPM -
Mid PTO -
Mid PTO RPM -
Fuel consumption 3.3 gal/hour or 12.5 l/hour
3 point hitch specifiations
Hitch system position and draft control
Rear hitch I
Rear hitch lift 1600 lbs or 725 kg
Front hitch -
Front hitch lift -

Allis Chalmers WD45 1953 comparison online with competitors

Allis Chalmers WD45

General Infos
Make Allis Chalmers
Model WD45
Country United states
Production From 1953  Until 1957
Price -
Tractor type Row Crop tractor
Fuel gasoline
Service repair manual Allis Chalmers WD45 Manual

Dimensions, sizes and tires
AG front tires 5.50-16
AG rear tires 12-28
Lawn front tires -
Lawn rear tires -
Indus front tires -
Indus rear tires -
Weight 3995 lbs or 1812 kg
Length 128 inches [325 cm]
Width -
Height -
Wheelbase 88 inches [223 cm]
Ground clearance 29 inches [73 cm]
Turning radius 8 feet [2.4 m]
Rear tread size 55.6 to 90.1 inches
Front tread size -
Turning radius -

Horsepower and engin specs
Engine capacity 230 ci or 3.8 L
Cylinders 6 cylinders
Engine power -
Engine RPM 1625 (rpm)
Torque 259 lb-ft or 351.2 Nm
Torque RPM 1169 (rpm)
Fuel type gasoline
Fuel injection -
Fuel tank size 15 gal or 56.8 L
Oil capacity 7 qts or 6.6 L
Oil change -
Starter motor -
Starter volts 12 V
Parts And Accessories Allis Chalmers WD45 Parts
Electrical and battery specs
Batteries number -
Batteries voltage 6 V
Battries Amps 115 amps
Cold Amps -
Ground force positive
Charging system -
Charging Volts -
Charging Amps -
Clutch and gearbox specs
Trans system -
Trans type sliding gear
Trans gears 4 forward and 1 reverse
Clutch system 178mm wet disc
Cabine and mechanical specs
Wheel drive 4x2 2WD
Final drive -
Steering mechanical
Braking system mechanical band
Cabin type Open operator station
Differentiel lock -
Hydraulics specifications
System -
Valves -
Pump flow -
SVC flow -
Steering flow -
Tank capacity 1.5 gal or 5.7 L
Hydraulic pressure -
Max flow -
Drawbar specifications
Drawbar type -
Claimed power 23 hp or 17.2 kW
Drawbar horsepower 39.50 hp or 29.5 kW
Fuel consumption -
Pulling power 5908 lbs or 2679 kg
Power take-off (PTO) specs
Claimed power -
Real power -
Engine @RPM -
PTO Clutch 254mm dry disc
Rear PTO live
Rear PTO RPM 540 (rpm)
Front PTO -
Front PTO RPM -
Mid PTO -
Mid PTO RPM -
Fuel consumption -
3 point hitch specifiations
Hitch system -
Rear hitch -
Rear hitch lift -
Front hitch -
Front hitch lift -

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