David Brown 3800 Selectamatic VS Allis Chalmers 6040 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 6040 1974 comparison online with competitors

Allis Chalmers 6040

General Infos
Make Allis Chalmers
Model 6040
Country United states
Production From 1974  Until 1975
Price 6,934  USD
Tractor type -
Fuel diesel
Service repair manual Allis Chalmers 6040 Manual

Dimensions, sizes and tires
AG front tires 6.00-16
AG rear tires 14.9-28
Lawn front tires -
Lawn rear tires -
Indus front tires -
Indus rear tires -
Weight 4,680 lbs or 2122 kg
Length -
Width -
Height -
Wheelbase -
Ground clearance -
Turning radius -
Rear tread size -
Front tread size -
Turning radius -

Horsepower and engin specs
Engine capacity 152.7 ci or 2.5 L
Cylinders 3 cylinders
Engine power -
Engine RPM 2250 (rpm)
Torque -
Torque RPM -
Fuel type diesel
Fuel injection -
Fuel tank size -
Oil capacity -
Oil change -
Starter motor -
Starter volts 12 V
Parts And Accessories Allis Chalmers 6040 Parts
Electrical and battery specs
Batteries number -
Batteries voltage -
Battries Amps -
Cold Amps -
Ground force -
Charging system -
Charging Volts -
Charging Amps -
Clutch and gearbox specs
Trans system -
Trans type partial synchronized
Trans gears 10 forward and 2 reverse
Clutch system -
Cabine and mechanical specs
Wheel drive 4x2 2WD
Final drive -
Steering hydrostatic power
Braking system differential mechanical dry disc
Cabin type Open operator station
Differentiel lock -
Hydraulics specifications
System -
Valves -
Pump flow 6.7 gpm or 25.4 lpm
SVC flow -
Steering flow 7.5 gpm or 28.4 lpm
Tank capacity -
Hydraulic pressure 2300 psi or 158.6 bar
Max flow -
Drawbar specifications
Drawbar type -
Claimed power 36.7 hp or 27.4 kW
Drawbar horsepower 36.71 hp or 27.4 kW
Fuel consumption 2.8 gal/hour or 10.6 l/hour
Pulling power 4,569 lbs or 2072 kg
Power take-off (PTO) specs
Claimed power 40.36 hp or 30.1 kW
Real power 39.77 hp or 29.7 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 2.6 gal/hour or 9.8 l/hour
3 point hitch specifiations
Hitch system -
Rear hitch II
Rear hitch lift -
Front hitch -
Front hitch lift -

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