Challenger

MT645

Farm tractor · 2002–2003 · 200 hp

ChallengerMT645
EngineTransmissionHydraulicsPTOHitchDimensionsWeightTires & TracksFuelSteeringCabCompatible ImplementsNebraska TestsMore Challenger

The Challenger MT645 is a farm tractor manufactured from 2002 to 2003. It features a Sisu engine, and power steering. The transmission is a power shift type with 18 forward and 6 reverse.

Engine

EngineSisu
Fuel Typediesel
Cylinders6
Coolingliquid-cooled vertical
Turbocharger Statusturbocharged aftercooled diesel
Displacement449 ci (7.4 L)
Bore4.25 in (108 mm)
Stroke5.28 in (134 mm)
Compression Ratio16.5
Power PTO184.29 hp (137.6 kW)
Air Cleanerdual paper elements
Starter Volts12
ManufacturerSisu
Rated2,200 RPM

Transmission

Transmission Typepower shift
Gears18 forward and 6 reverse
Clutchelectro-hydraulic wet disc
Available Options18-speed power shift

Hydraulics

Typeclosed center pressure flow compensated (PFC)
Pressure2,900 psi (200 bar)
Valves4
Total Flow29 gpm (109.8 lpm)

PTO

Rear Typeindependent

Hitch

Rear TypeIII
Rear Lift18,400 lbs (8,346 kg)

Dimensions

Length203 in (515 cm)
Width98.2 in (249 cm)
Height Cab121 in (307 cm)
Wheelbase121 in (307 cm)

Weight

Shipping19,000 lbs (8,618 kg)

Tires & Tracks

Front Ag14.9R30
Rear Ag18.4R42

Fuel

Capacity120 gal (454.2 L)

Steering

Typepower

Cab

Cabstandard with air-conditioning

Compatible Implements

ModelTypeWidthMin HP
Land Pride RCP3760Rotary Cutters60"95 hp
Land Pride RCPM3760Rotary Cutters60"95 hp

Checked: 3-point hitch category, PTO horsepower. Not checked: PTO speed (540/1000), hydraulic flow, 3-point lift capacity, rear remotes, ballast.

These implements meet this tractor's hitch and PTO-HP requirements — this is not a full compatibility guarantee. Confirm the remaining specs with your dealer before purchasing.

Nebraska Tests

NTTLTest #1782
September 12 - 26,2000

Nebraska Tractor Test

PTO Power
184.29HP
Drawbar
172.61HP