Challenger MT645 VS AGCO Allis 6680 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	-

AGCO Allis 6680

General Infos

Make	AGCO Allis
Model	6680
Country	United states
Production	From 1991  Until 1997
Price	40,000  USD
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	AGCO Allis 6680 Manual

Dimensions, sizes and tires

AG front tires	7.50-18
AG rear tires	16.9R3
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	6,724 lbs or 3050 kg
Length	161 inches [408 cm]
Width	82.4 inches [209 cm]
Height	111.2 inches [282 cm]
Wheelbase	92.8 inches [235 cm]
Ground clearance	17.6 inches [44 cm]
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	244 ci or 4.0 L
Cylinders	4 cylinders
Engine power	79.27 hp or 59.1 kW
Engine RPM	2500 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	28.27 gal or 107.0 L
Oil capacity	9.7 qts or 9.2 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	AGCO Allis 6680 Parts

Electrical and battery specs

Batteries number	1
Batteries voltage	12 V
Battries Amps	100 amps
Cold Amps	-
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	55 amps

Clutch and gearbox specs

Trans system	-
Trans type	partial power shift
Trans gears	30 forward and reverse
Clutch system	305mm dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	hydrostatic power
Braking system	hydraulic wet disc
Cabin type	Cab standard with air-conditioning
Differentiel lock	mechanical foot-actuated rear

Hydraulics specifications

System	open center
Valves	2
Pump flow	11.1 gpm or 42.0 lpm
SVC flow	-
Steering flow	-
Tank capacity	15.2 gal or 57.5 L
Hydraulic pressure	2610 psi or 180.0 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	62.09 hp or 46.3 kW
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	72.7 hp or 54.2 kW
Real power	72.7 hp or 54.2 kW
Engine @RPM	540@2200 (rpm)
PTO Clutch	124.5mm hydraulic wet disc
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	4.4 gal/hour or 16.7 l/hour

3 point hitch specifiations

Hitch system	position and draft control with lower-link sensing
Rear hitch	II/I
Rear hitch lift	6,790 lbs or 3079 kg
Front hitch	-
Front hitch lift	-

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