Challenger MT645B VS Kubota M8950 specs comparison

Challenger MT645B

General Infos

Make	Challenger
Model	MT645B
Country	United states
Production	From 2005  Until 2008
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	Challenger MT645B Manual

Dimensions, sizes and tires

AG front tires	380/85R34
AG rear tires	480/80R46
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	18,308 lbs or 8304 kg
Length	206 inches [523 cm]
Width	118 inches [299 cm]
Height	123.6 inches [313 cm]
Wheelbase	121.1 inches [307 cm]
Ground clearance	22.4 inches [56 cm]
Turning radius	-
Rear tread size	60 to 88 inches
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	449 ci or 7.4 L
Cylinders	6 cylinders 24 valves
Engine power	235 hp or 175.2 kW
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	159 gal or 601.8 L
Oil capacity	20 qts or 18.9 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Challenger MT645B Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	775
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	150 amps

Clutch and gearbox specs

Trans system	TechStar
Trans type	continuously variable transmission (CVT)
Trans gears	infinite (2-range) forward and reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x4 MFWD 4WD
Final drive	inboard planetary
Steering	power
Braking system	hydraulic wet disc
Cabin type	Cab standard with heat and A/C
Differentiel lock	electrohydraulic front and rear

Hydraulics specifications

System	pressure flow compensated
Valves	4 to 6
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	26.4 gal or 99.9 L
Hydraulic pressure	2900 psi or 200.0 bar
Max flow	39 gpm or 147.6 lpm

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	172.30 hp or 128.5 kW
Fuel consumption	12.0 gal/hour or 45.4 l/hour
Pulling power	16,954 lbs or 7690 kg

Power take-off (PTO) specs

Claimed power	200 hp or 149.1 kW
Real power	221.55 hp or 165.2 kW
Engine @RPM	540@2037 (rpm)
PTO Clutch	electro-hydraulic wet disc
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	12.0 gal/hour or 45.4 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	III
Rear hitch lift	15,600 lbs or 7076 kg
Front hitch	II
Front hitch lift	7,700 lbs or 3492 kg

Kubota M8950

General Infos

Make	Kubota
Model	M8950
Country	Japan
Production	From 1984  Until 1993
Price	-
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	Kubota M8950 Manual

Dimensions, sizes and tires

AG front tires	10.00-16
AG rear tires	18.4-3
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	6,953 lbs or 3153 kg
Length	158.2 inches [401 cm] (2WD)
Width	79.5 inches [201 cm]
Height	-
Wheelbase	95.9 inches [243 cm] (2WD)
Ground clearance	-
Turning radius	-
Rear tread size	59.8 to 79.5 inches
Front tread size	59.8 to 79.5 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	261.9 ci or 4.3 L
Cylinders	4 cylinders
Engine power	96 hp or 71.6 kW
Engine RPM	2400 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	31.7 gal or 120.0 L
Oil capacity	16.4 qts or 15.5 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Kubota M8950 Parts

Electrical and battery specs

Batteries number	1
Batteries voltage	12 V
Battries Amps	300 amps
Cold Amps	-
Ground force	-
Charging system	alternator
Charging Volts	-
Charging Amps	65 amps

Clutch and gearbox specs

Trans system	-
Trans type	partial power shift
Trans gears	24 forward and 8 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	hydrostatic power
Braking system	hydraulic wet disc
Cabin type	Four-post ROPS
Differentiel lock	standard

Hydraulics specifications

System	open center
Valves	1 or 2
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	14.8 gal or 56.0 L
Hydraulic pressure	2630 psi or 181.3 bar
Max flow	11 gpm or 41.6 lpm

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	68.92 hp or 51.4 kW
Fuel consumption	5.2 gal/hour or 19.7 l/hour
Pulling power	10,364 lbs or 4701 kg

Power take-off (PTO) specs

Claimed power	85 hp or 63.4 kW
Real power	85.63 hp or 63.9 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	5.3 gal/hour or 20.1 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	II
Rear hitch lift	4,848 lbs or 2199 kg
Front hitch	-
Front hitch lift	-

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