Zetor 7321 VS Challenger MT645D specs comparison

Zetor 7321

General Infos

Make	Zetor
Model	7321
Country	Czech republic
Production	From 1997  Until 2004
Price	28,500  USD
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	Zetor 7321 Manual

Dimensions, sizes and tires

AG front tires	9.00-16
AG rear tires	18.4R34
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	6950 lbs or 3152 kg
Length	144 inches [365 cm]
Width	74 inches [187 cm]
Height	105 inches [266 cm]
Wheelbase	88.9 inches [225 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	239 ci or 3.9 L
Cylinders	4 cylinders
Engine power	78 hp or 58.2 kW
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	32 gal or 121.1 L
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Zetor 7321 Parts

Electrical and battery specs

Batteries number	-
Batteries voltage	12 V
Battries Amps	-
Cold Amps	-
Ground force	-
Charging system	alternator
Charging Volts	-
Charging Amps	75 amps

Clutch and gearbox specs

Trans system	mech shuttle
Trans type	-
Trans gears	10 forward and reverse
Clutch system	hydraulic 304.8mm cerametallic disc

Cabine and mechanical specs

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

Hydraulics specifications

System	open center
Valves	1 to 3
Pump flow	14 gpm or 53.0 lpm
SVC flow	-
Steering flow	4 gpm or 15.1 lpm
Tank capacity	-
Hydraulic pressure	2600 psi or 179.3 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	55.7 hp or 41.5 kW
Fuel consumption	4.0 gal/hour or 15.1 l/hour
Pulling power	5490 lbs or 2490 kg

Power take-off (PTO) specs

Claimed power	73 hp or 54.4 kW
Real power	72.4 hp or 54.0 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	4.2 gal/hour or 15.9 l/hour

3 point hitch specifiations

Hitch system	position and draft control
Rear hitch	II/I
Rear hitch lift	6830 lbs or 3098 kg
Front hitch	-
Front hitch lift	-

Challenger MT645D

General Infos

Make	Challenger
Model	MT645D
Country	United states
Production	From 2011  Until 2013
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	Challenger MT645D Manual

Dimensions, sizes and tires

AG front tires	480/70R34
AG rear tires	520/85R46
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	24250 lbs or 10999 kg
Length	215.7 inches [547 cm]
Width	-
Height	141 inches [358 cm]
Wheelbase	122 inches [309 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	513.8 ci or 8.4 L
Cylinders	6 cylinders
Engine power	240 hp or 179.0 kW
Engine RPM	2100 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	electronic high-pressure common rail
Fuel tank size	167 gal or 632.1 L
Oil capacity	-
Oil change	-
Starter motor	electric
Starter volts	12 V
Parts And Accessories	Challenger MT645D Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	-
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	240 amps

Clutch and gearbox specs

Trans system	Techstar CVT
Trans type	continuously variable transmission
Trans gears	infinite forward and reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x4 MFWD 4WD
Final drive	inboard planetary
Steering	hydrostatic power
Braking system	hydraulic wet disc
Cabin type	Cab standard with air-conditioning and OptiRide Plus hydraulic suspension AGCO System 150 (optional)
Differentiel lock	electro-hydraulic

Hydraulics specifications

System	closed center load sensing
Valves	4 to 6
Pump flow	-
SVC flow	26.4 gpm or 99.9 lpm
Steering flow	-
Tank capacity	29.1 gal or 110.1 L
Hydraulic pressure	2900 psi or 200.0 bar
Max flow	46 gpm or 174.1 lpm

Drawbar specifications

Drawbar type	Cat
Claimed power	-
Drawbar horsepower	170.7 hp or 127.3 kW
Fuel consumption	11.5 gal/hour or 43.5 l/hour
Pulling power	25705 lbs or 11659 kg

Power take-off (PTO) specs

Claimed power	205 hp or 152.9 kW
Real power	250.0 hp or 186.4 kW
Engine @RPM	540E@1577 (rpm)
PTO Clutch	electro-hydraulic
Rear PTO	independent
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	13.4 gal/hour or 50.7 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	III
Rear hitch lift	22760 lbs or 10323 kg
Front hitch	III
Front hitch lift	11000 lbs or 4989 kg

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