Challenger MT645 VS John Deere 8850 specs comparison

Challenger MT645

General Infos

Make	Challenger
Model	MT645
Country	United states
Production	From 2002  Until 2003
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	Challenger MT645 Manual

Dimensions, sizes and tires

AG front tires	14.9R30
AG rear tires	18.4R42
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	19000 lbs or 8618 kg
Length	203 inches [515 cm]
Width	98.2 inches [249 cm]
Height	121 inches [307 cm]
Wheelbase	121 inches [307 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	449 ci or 7.4 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	120 gal or 454.2 L
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Challenger MT645 Parts

Electrical and battery specs

Batteries number	-
Batteries voltage	12 V
Battries Amps	-
Cold Amps	-
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	-
Trans type	power shift
Trans gears	18 forward and 6 reverse
Clutch system	electro-hydraulic wet disc

Cabine and mechanical specs

Wheel drive	4x4 MFWD 4WD
Final drive	-
Steering	power
Braking system	hydraulic wet disc
Cabin type	Cab standard with air-conditioning
Differentiel lock	-

Hydraulics specifications

System	closed center pressure flow compensated
Valves	4
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	2900 psi or 200.0 bar
Max flow	29 gpm or 109.8 lpm

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	-
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	180 hp or 134.2 kW
Real power	183.87 hp or 137.1 kW
Engine @RPM	1000@2091 (rpm)
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	10.9 gal/hour or 41.3 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	III
Rear hitch lift	18400 lbs or 8346 kg
Front hitch	-
Front hitch lift	-

John Deere 8850

General Infos

Make	John Deere
Model	8850
Country	United states
Production	From 1982  Until 1988
Price	-
Tractor type	Four wheel Drive (4WD) tractor
Fuel	diesel
Service repair manual	John Deere 8850 Manual

Dimensions, sizes and tires

AG front tires	20.8-42
AG rear tires	20.8-42
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	37,480 lbs or 17000 kg
Length	257.8 inches [654 cm]
Width	-
Height	-
Wheelbase	133 inches [337 cm]
Ground clearance	-
Turning radius	19 feet [5.8 m]
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	955 ci or 15.7 L
Cylinders	8 cylinders
Engine power	370 hp or 275.9 kW
Engine RPM	2100 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	240 gal or 908.4 L
Oil capacity	51 qts or 48.3 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 8850 Parts

Electrical and battery specs

Batteries number	3
Batteries voltage	12 V
Battries Amps	-
Cold Amps	625
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	110 amps

Clutch and gearbox specs

Trans system	Quad-Range
Trans type	partial power shift
Trans gears	16 forward and 6 reverse
Clutch system	Perma-Clutch hydraulic wet discs

Cabine and mechanical specs

Wheel drive	4x4 articulated 4WD
Final drive	-
Steering	hydrostatic power
Braking system	power wet disc
Cabin type	Sound-Gard cab with air-conditioning
Differentiel lock	-

Hydraulics specifications

System	closed center constant-pressure
Valves	3 to 4
Pump flow	44 gpm or 166.5 lpm
SVC flow	-
Steering flow	-
Tank capacity	45.5 gal or 172.2 L
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	269.77 hp or 201.2 kW
Fuel consumption	19.2 gal/hour or 72.7 l/hour
Pulling power	35,330 lbs or 16025 kg

Power take-off (PTO) specs

Claimed power	300 hp or 223.7 kW
Real power	303.99 hp or 226.7 kW
Engine @RPM	-
PTO Clutch	hydraulic wet disc
Rear PTO	independent
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	19.3 gal/hour or 73.1 l/hour

3 point hitch specifiations

Hitch system	lower-link
Rear hitch	4/4N
Rear hitch lift	10,250 lbs or 4649 kg
Front hitch	-
Front hitch lift	-

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