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Years in Production / 2002–2003
Challenger
MT645
Explore the specifications, hardware, and original references for the Challenger MT645.
No photo
200hp
Engine estimate · from PTO
MFWD Optional
Drive
2002–2003
Production years
Challenger
Manufacturer
MT645 / 01
At a glance
Overview
2002 - 2003
MT600 Series
Row-Crop tractor
Production
Row-Crop tractor
Built in Beauvais, France
The Challenger MT645 is similar to the Massey Ferguson 8260.
- Manufacturer
- Challenger (a part of AGCO)
Mechanical
Four-wheel drive
Power steering
Hydraulic wet disc brakes
Cab standard with air-conditioning.
Hydraulics
- Type
- closed center pressure flow compensated (PFC)
- Pressure
- 2900 psi200.0 bar
- Valves
- 4
- Total Flow
- 29 gpm109.8 lpm
- Total Flow
- 39 gpmOptOptional147.6 lpm
Hitch
- Rear Type
- III
- Rear Lift At24610mm
- 18400 lbs8346 kg
Pto
- Rear Pto
- independent
- Rear Type
- 1000
- Engine Rpm
- 1000@2091
Electrical
- Ground
- negative
- Charging System
- alternator
- Battery Volts
- 12
MT645 / 02
Under the hood
Engine Detail
Sisu
turbocharged aftercooled diesel
6-cylinder
liquid-cooled vertical
- Displacement
- 449 ci7.4 L
- Bore Stroke
- 4.251x5.278 inches108 x 134 mm
- Air Cleaner
- dual paper elements
- Compression Ratio
- 16.5:1
- Rated Rpm
- 2200
- Starter Volts
- 12
- Cylinders
- 6
- Cooling
- liquid-cooled vertical
Engine Options
Sisu 7.4L 6-cyl diesel
- Fuel Tank
- 120 gal454.2 L
MT645 / 03
Gears & controls
Transmission
- Transmission Type
- power shift
- Gears
- 18 forward and 6 reverse
- Clutch
- electro-hydraulic wet disc
Challenger Mt645 Transmission
18-speed power shift
MT645 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 203 in515 cm
- Width
- 98.2 in249 cm
- Height (cab)
- 121 in307 cm
- Wheelbase
- 121 in307 cm
Dimensions And Tires
- Wheelbase
- 121 inches307 cm
- Weight
- 19000 lbs8618 kg
- Front Tire
- 14.9R30
- Rear Tire
- 18.4R42
Tires And Tracks
- Front Ag
- 14.9R30
- Rear Ag
- 18.4R42
MT645 / 05
Tests (NTTL)
Nebraska Tractor Test 1782c
Diesel 18-speed 4WDSeptember 19 - 26, 2000
PTO performance
- Id
- 1782c
- Max Power
- 184.49 hp137.6 kW
- Fuel Use
- 10.6 gal/hour40.1 l/hour
- Fuel Use
- 11.3 gal/hour42.8 l/hour
- Fuel Use
- 10.9 gal/hour41.3 l/hour
- Power At Rated Engine Speed
- 181.26 hp135.2 kW
- Power At Rated Pto Speed
- 183.87 hp137.1 kW