David Brown 990 Implematic VS John Deere 4050 specs comparison

David Brown 990 Implematic

General Infos

Make	David Brown
Model	990 Implematic
Country	United states
Production	From 1961  Until 1980
Price	-
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	David Brown 990 Implematic Manual

Dimensions, sizes and tires

AG front tires	6.00-16
AG rear tires	11-32
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	4272 lbs or 1937 kg
Length	118 inches [299 cm]
Width	67 inches [170 cm]
Height	-
Wheelbase	76.75 inches [194 cm]
Ground clearance	-
Turning radius	-
Rear tread size	52/56/60/64/68/72/76 inches
Front tread size	52/56/60/64/68/72/76 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	185.8 ci or 3.0 L
Cylinders	4 cylinders
Engine power	52 hp or 38.8 kW
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	13.74 gal or 52.0 L
Oil capacity	7.8 qts or 7.4 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	David Brown 990 Implematic Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	6 V
Battries Amps	-
Cold Amps	-
Ground force	-
Charging system	generator
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	-
Trans type	partially synchronized
Trans gears	12 forward and 4 reverse
Clutch system	279mm dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	manual
Braking system	differential mechanical expanding shoe
Cabin type	Open operator station
Differentiel lock	mechanical rear

Hydraulics specifications

System	open center
Valves	-
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	2000 psi or 137.9 bar
Max flow	7.4 gpm or 28.0 lpm

Drawbar specifications

Drawbar type	-
Claimed power	43 hp or 32.1 kW
Drawbar horsepower	43.47 hp or 32.4 kW
Fuel consumption	3.4 gal/hour or 12.9 l/hour
Pulling power	6,039 lbs or 2739 kg

Power take-off (PTO) specs

Claimed power	48 hp or 35.8 kW
Real power	48.49 hp or 36.2 kW
Engine @RPM	540@1800 (rpm)
PTO Clutch	dry disc
Rear PTO	transmission
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	3.0 gal/hour or 11.4 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	II/I
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

John Deere 4050

General Infos

Make	John Deere
Model	4050
Country	United states
Production	From 1983  Until 1988
Price	44,700  USD
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	John Deere 4050 Manual

Dimensions, sizes and tires

AG front tires	10.00-16
AG rear tires	18.4-38
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	11,098 lbs or 5034 kg
Length	154.1 inches [391 cm] (2WD)
Width	96 inches [243 cm]
Height	114.5 inches [290 cm]
Wheelbase	106.7 inches [271 cm] (2WD)
Ground clearance	15.75 inches [40 cm]
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	359 ci or 5.9 L
Cylinders	6 cylinders
Engine power	130 hp or 96.9 kW
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	46 gal or 174.1 L
Oil capacity	18 qts or 17.0 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 4050 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	6 V
Battries Amps	-
Cold Amps	-
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	72 amps

Clutch and gearbox specs

Trans system	John Deere Power Shift
Trans type	full power shift
Trans gears	15 forward and 4 reverse
Clutch system	Perma-Clutch wet disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	hydrostatic power
Braking system	hydrostatic wet disc
Cabin type	Sound-Gard cab standard with air-conditioning
Differentiel lock	-

Hydraulics specifications

System	closed center
Valves	2 to 3
Pump flow	26.5 gpm or 100.3 lpm
SVC flow	-
Steering flow	-
Tank capacity	10.5 gal or 39.7 L
Hydraulic pressure	2277 psi or 157.0 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	87 hp or 64.9 kW
Drawbar horsepower	88.28 hp or 65.8 kW
Fuel consumption	6.0 gal/hour or 22.7 l/hour
Pulling power	11,378 lbs or 5161 kg

Power take-off (PTO) specs

Claimed power	100 hp or 74.6 kW
Real power	105.69 hp or 78.8 kW
Engine @RPM	540@2200 (rpm)
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	6.1 gal/hour or 23.1 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	I, II
Rear hitch lift	6,294 lbs or 2854 kg
Front hitch	-
Front hitch lift	-

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