General informations and Service Manual
Make
Challenger
Model
MT645B
Company country
United states
Production years
From 2005 Until 2008
Tractor type
Row Crop tractor
Fuel
diesel
Price
-
Total build
-
Service repair manual
Challenger MT645B Manual
Dimensions, weight and tires specs
AG front tires
380/85R34
AG rear tires
480/80R46
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]
Rear tread size
60 to 88 inches
Horsepower and engine specs
Engine size
449 ci or 7.4 L
Number of cylinders
6 cylinders 24 valves
Horsepower
235 hp or 175.2 kW
Power RPM
2200 (rpm)
Engine torque
-
Engine torque RPM
-
Fuel type
diesel
Fuel tank capacity
159 gal or 601.8 L
Compression ratio
17.5:1
Bore stroke
4.251x5.278 inches or (108 x 134 mm)
Oil tank capacity
20 qts or 18.9 L
Coolant tank capacity
35.6 qts or 33.7 L
Battery and electrical specs
Number of batteries
2
Battery voltage
12 V
Battery cold cranking Amps
775
Electric ground force
negative
Electric charging system
alternator
Electric charging Amps
150 amps
Engine starter volts
12 V
Parts And Accessories
Challenger MT645B Parts
Clutch and transmission specs
Transmission system
TechStar
Transmission type
continuously variable transmission (CVT)
Transmission gears
infinite (2-range) forward and reverse
Oil tank capacity
70.8 qts or 67.0 L
Mechanical and cab specs
Wheel drive
4x4 MFWD 4WD
Final drive system
inboard planetary
Steering system
power
Braking system
hydraulic wet disc
Cabin type
Cab standard with heat and A/C
Differentiel lock
electrohydraulic front and rear
Hydraulic specs
Hydraulic system
pressure flow compensated
Number of valves
4 to 6
Hydraulic tank capacity
26.4 gal or 99.9 L
Hydraulic pressure
2900 psi or 200.0 bar
Hydraulic max flow
39 gpm or 147.6 lpm
Drawbar specs
Drawbar real power
172.30 hp or 128.5 kW
Drawbar fuel consumption
12.0 gal/hour or 45.4 l/hour
Max drawbar pull
16,954 lbs or 7690 kg
Power take-off (PTO) specs
PTO claimed power
200 hp or 149.1 kW
PTO real power
221.55 hp or 165.2 kW
PTO engine @RPM
540@2037 (rpm)
PTO clutch system
electro-hydraulic wet disc
Rear PTO system
independent
Rear PTO RPM
540 (rpm)
Front PTO system
-
PTO fuel consumption
12.0 gal/hour or 45.4 l/hour
3 point hitch specs
Hitch control 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
Detailed review of Challenger MT645B
Challenger produced its MT645B farm tractor model From 2005 Until 2008 in United states with a Cab standard with heat and A/C cabin. Talking dimensions and weight, this model weighs 18,308 lbs or 8304 kg has 118 inches [299 cm] of width, 206 inches [523 cm] of length and 123.6 inches [313 cm] of height while maintaining a wheelbase of 121.1 inches [307 cm] and a ground clearance of 22.4 inches [56 cm] while the rear tread is 60 to 88 inches . This tractor can fit ag tires of 380/85R34 front and 380/85R34 back . This Challenger MT645B is powerd by a diesel engine it has 449 ci or 7.4 L 6 cylinders 24 valves ,it can produce 235 hp or 175.2 kW at 2200 (rpm), the fuel tank capacity is 159 gal or 601.8 L. This machine has 4x4 MFWD 4WD wheel drive system,infinite (2-range) forward and reverse TechStar transmission system. - Challenger provided us with the latest version of its MT645B service repair manual - Find All mechanical and electrical parts and accessories of Challenger MT645B farm-tractor here