Challenger MT645

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3-Point Hitch
Rear type III
Control -
Rear lift 18400 lbs [8346 kg]
Front hitch -
Front lift -
Power Take-off (PTO):
Rear PTO independent
Clutch -
Rear RPM 1000
Front PTO -
Engine RPM [email protected]
Capacity
Fuel 120 gal [454.2 L]
Dimensions & Tires
Wheelbase 121 inches [307 cm]
Weight 19000 lbs [8618 kg]
Front tire 14.9R30
Rear tire 18.4R42
Challenger MT645 Power:
Engine gross -
Engine max -
Mechanical
Chassis 4x4 MFWD 4WD
Differential lock -
Steering power
Brakes hydraulic wet disc
Trailer brakes -
Cab Cab standard with air-conditioning.
Hydraulics
Type III
Rear valves -
Mid valves -
Pump flow powe
SCV flow -
Total flow 29 gpm [109.8 lpm]
Electrical
Ground negative
Charging system alternator
Charging amps -
Charging volts -
Battery
Number -
Cold-cranking amps -
Volts 12
Engine Detail
Sisu
turbocharged aftercooled diesel
6-cylinder
liquid-cooled vertical
449 ci [7.4 L]
Engine specifications
Bore/Stroke 4.251x5.278 inches [108 x 134 mm]
Emissions -
Emission control -
Rated Power -
Maximum Power -
Air cleaner dual paper elements
Pre-heating -
Compression -
Fuel system -
Rated RPM 2200
Operating RPM -
Torque -
Torque RPM -
Starter -
Starter volts 12
Oil capacity -
Oil change -
Coolant capacity -
Type power shift
Gears 18 forward and 6 reverse
Clutch electro-hydraulic wet disc
Speeds  
Challenger MT645 Tires
Ag front 14.9R30
Ag rear 18.4R42
Standard tires (ag) -
Dimensions
Weight (operating) -
Weight (max capacity) -
Front axle load -
Rear axle load -
Wheelbase 121 inches [307 cm]
Length 203 inches [515 cm]
With hitch Length: -
Width 98.2 inches [249 cm] *Minimum width
Height (hood) -
Height (cab) 121 inches [307 cm]
Front axle -
Rear axle -
Height (exhaust) -
Clearance (front axle) -
Clearance (rear axle) -
Clearance (drawbar) -
Test name
Test Date September 19 - 26, 2000
Test Type Diesel 18-speed 4WD
PTO power (max) 184.49 hp [137.6 kW]
PTO fuel use (max) 10.6 gal/hour [40.1 l/hour]
PTO power (rated engine speed) 181.26 hp [135.2 kW]
PTO fuel use (engine speed) 11.3 gal/hour [42.8 l/hour]
PTO fuel use (PTO speed) 10.9 gal/hour [41.3 l/hour]
Drawbar power (max) -
Drawbar fuel use (max) -
Drawbar pull (max) -
Max pull gear -