Tractor · 2002Unverified
Challenger MT645
Challenger MT645 — MT600 Series · 181 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
181 hp
Max power
137.6 kW
Weight
8618 kg
Hover a source tag to verify
Overview
ManufacturerChallenger (a part of AGCO)Reference
Row-Crop tractorReference
Built in Beauvais, FranceReference
The Challenger MT645 is similar to the Massey Ferguson 8260.Reference
Four-wheel driveReference
Power steeringReference
Hydraulic wet disc brakesReference
Cab standard with air-conditioning.Reference
Engine
Sisu 7.4L 6-cyl dieselReference
Fuel tank454.2 LReference
SisuReference
turbocharged aftercooled dieselReference
6-cylinderReference
liquid-cooled verticalReference
Displacement7.4 LReference
Bore/Stroke108 x 134 mmReference
Air cleanerdual paper elementsReference
Compression16.5:1Reference
Rated RPM2200Reference
Starter volts12Reference
Max power137.6 kWReference
Power at rated engine speed135.2 kWReference
Transmission
18-speed power shiftReference
Typepower shiftReference
Gears18 forward and 6 reverseReference
Clutchelectro-hydraulic wet discReference
PTO & Hydraulics
PTO (claimed)134.2 kWReference
PTO (tested)137.6 kWReference
Typeclosed center pressure flow compensated (PFC)Reference
Pressure200.0 barReference
Valves4Reference
Total flow109.8 lpmReference
Total flow147.6 lpmReference
Rear TypeIIIReference
Rear lift (at 24"/610mm)8346 kgReference
Rear PTOindependentReference
Rear PTO Type1000Reference
Engine RPM1000@2091Reference
Power at rated PTO speed137.1 kWReference
Dimensions
Wheelbase307 cmReference
Weight8618 kgReference
Front tire14.9R30Reference
Rear tire18.4R42Reference
Ag front14.9R30Reference
Ag rear18.4R42Reference
Length515 cmReference
Width249 cmReference
Height (cab)307 cmReference
Shipping weight8618 kgReference
Electrical
GroundnegativeReference
Charging systemalternatorReference
Battery volts12Reference
Test results
Diesel 18-speed 4WDSeptember 19 - 26, 2000Link: Nebraska Tractor Test 1782C fileReference
PTO performanceReference
Fuel use40.1 l/hourReference
Fuel use42.8 l/hourReference
Fuel use41.3 l/hourReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.