Search
Challenger MT645C vs Challenger MT655E
Verdict: Challenger MT645C vs Challenger MT655E
The Challenger MT645C and the Challenger MT655E are both tractors — here is how they stack up on the figures that matter. Challenger MT645C leads on rated power with 240 hp against 234 hp. Challenger MT655E is the lighter machine (10,800 kg vs 24,250 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Challenger MT655E holds more fuel (628.3 L vs 590.1 L) for longer stints between fills. Challenger MT655E is the newer design (2014 vs 2009). In short: choose the Challenger MT645C for outright pulling power, or the Challenger MT655E if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
Tune the fit score
Tell us about your operation
Fit & specs
Challenger
62
Fit score
Clear
Challenger
85
Fit score
Best match
Clear
Rated power
240 hp
234 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Challenger (a part of AGCO)Reference
Challenger (a part of AGCO)Reference
Pull at 4.02 KPHReference
Pull at 2.50KPHReference
Final drives
planetaryReference
—
Differential lock
electro-hydraulic front and rearReference
electro-hydraulicReference
Steering
—
hydrostatic powerReference
Variants
8650
similar Massey Ferguson modelReference
—
8730
—
similar Massey Ferguson modelReference
Engine
Fuel tank
690.0 LReference
628.3 LReference
Exhaust fluid (DEF)
29.9 LReference
59.8 LReference
Engine (gross)
179.0 kWReference
—
Drawbar (tested)
134.3 kWReference
162.0 kWReference
Displacement
8.4 LReference
8.4 LReference
Bore/Stroke
111 x 145 mmReference
111 x 145 mmReference
Emissions
Interim Tier 4Reference
Tier IVReference
Emission control
integrated exhaust gas recirculation optional (IECR)Reference
selective catalytic reduction (SCR)Reference
Power (gross)
179.0 kWReference
—
Maximum Power
201.3 kWReference
220.0 kWReference
Fuel system
electronic high-pressure common railReference
—
Compression
16.7:1Reference
—
Rated RPM
2200Reference
2100Reference
Torque
1185.1 NmReference
—
Torque RPM
1500Reference
—
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Max power
130.6 kWReference
162.0 kWReference
Power at rated engine speed
161.2 kWReference
174.1 kWReference
Fuel Type
dieselReference
dieselReference
No of Cylinders
6 cylinderReference
6 CylinderReference
Rated engine speed
2,200 RPMReference
2,100 RPMReference
Engine torque at rated speed
396.4 kgReference
—
Bore and stroke
4.37x5.71 inchesReference
4.37x5.71 inchesReference
Compression ratio
16.7:1Reference
—
Cooling system
liquid-cooledReference
liquid-cooledReference
Engine
—
197.6 kWReference
Power
—
197.6 kWReference
Emissions compliance
—
Tier IV | selective catalytic reduction (SCR)Reference
Transmission
Transmission
Techstar CVTReference
Techstar CVTReference
Gears
infinite forward and reverseReference
infinite forward and reverse (2-range)Reference
Transmission Type
CVTReference
CVTReference
Wheel Drive
4WDReference
4WDReference
Rear Axle Drive Type
planetaryReference
—
forward and reverse options
—
continuously variable transmission - infinite F and (2-range) RReference
PTO & Hydraulics
PTO (claimed)
152.9 kWReference
167.8 kWReference
PTO (tested)
186.4 kWReference
195.0 kWReference
Type
continuously variable transmissionReference
continuously variable transmission (CVT)Reference
Pressure
200.0 barReference
200.0 barReference
Valves
4 to 6Reference
4 to 6Reference
Pump flow
99.9 lpmReference
204.4 lpmReference
Total flow
174.9 lpmReference
—
Rear Type
IIIReference
III/IVNReference
Control
electronic lower-link draft sensingReference
—
Rear lift (at ends)
12002 kgReference
11999 kgReference
Rear lift (at 24"/610mm)
9678 kgReference
—
Front Hitch
IIIReference
—
Front lift (at ends)
4998 kgReference
—
Rear PTO
independentReference
independentReference
Clutch
electro-hydraulicReference
—
Rear PTO Type
540E/1000 (1.375)Reference
1000/1000E (1.75)Reference
Front PTO
independentReference
—
Front PTO Type
1000 (1.375)Reference
—
Power at rated PTO speed
178.2 kWReference
192.9 kWReference
Drawbar
—
Cat 4 (optional)Reference
Dimensions
Wheelbase
310 cmReference
309 cmReference
Weight
24250 to 25795 poundsReference
10800 kgReference
Front tire
480/70R34Reference
—
Rear tire
520/85R46Reference
—
Standard tires (ag)
Front: 480/70R34. Rear: 520/85R46Reference
—
Length
566 cmReference
555 cmReference
Height (cab)
338 cmReference
358 cmReference
Bar rear axle
109 by 2997 mmReference
109 by 2997 mmReference
Front tread
154 to 225 cmReference
—
Rear tread
148 to 303 cmReference
—
Shipping
10999 kgReference
—
Operating
11700 kgReference
—
Shipping weight
—
10800 kgReference
Challenger MT645C attachments
MT645C Serial Number Location
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
alternatorReference
Charging amps
240Reference
240 (twin 120A)Reference
Batteries
2Reference
—
Battery CCA
775Reference
—
Battery volts
12Reference
12Reference
Battery options
2Reference
—
Total cold cranking amps
775 CCAReference
—
Charging volts
—
12Reference
Capacities
Max capacity
17640 kgReference
—
Capacity
512.6 ciReference
512.6 ciReference
Diesel exhaust fluid (DEF) tank
29.9 LReference
59.8 LReference
Test results
Fuel use
52.2 l/hourReference
54.5 l/hourReference
Max pull
12142 kgReference
10249 kgReference
General
Make & Model
Challenger (a part of AGCO)Reference
Challenger (a part of AGCO)Reference
Cruise control
AvailableReference
AvailableReference
SCV control
JoystickReference
—
Rear Axle Type
BarReference
Bar: 4.33 by 105 inches | 4.33 by 118 inchesReference
Country of manufacturer
FranceReference
USAReference
Drawbar category
—
Cat. 3Reference
PTO
PTO Power
205 hpReference
225 hpReference
Rear PTO Power
AvailableReference
AvailableReference
Rear PTO RPM
1,000 RPMReference
1,000 RPMReference
Front PTO Power
AvailableReference
—
Steering & brakes
Brakes
Hydraulic wet discReference
Hydraulic wet disc brakesReference
Steering type
PowerReference
hydrostatic powerReference
Hydraulics
Pump Rated Output (total)
46.2 gpmReference
—
Hydraulics Type
Closed Center Load SensingReference
closed center load sensing (CCLS)Reference
Maximum operating pressure
2,901 psiReference
2,900 psiReference
Remote Valves
4 to 6 ValvesReference
4 to 6 ValvesReference
Rear Hitch category (SAE designation)
Category IIIReference
Category III/IVNReference
Rear Hitch maximum lift capacity
12,002 kgReference
11,999.8 kgReference
Rear Hitch Sensing Type
electronic lower-link draft sensingReference
—
Front Hitch category (SAE designation)
Category IIIReference
—
Capacity Valves
—
24 ValvesReference
Dimensions & weight
Height Over Cab
338.1 cmReference
358.1 cmReference
Overall Length
566.9 cmReference
555.2 cmReference
Overall weight
10,999.6 kgReference
10,800 kgReference
Wheels & tyres
Rear Wheel Type
520/85R46Reference
—
Rear wheel tread range
58.5 to 119.5 inchesReference
—
Front Wheel Type
480/70R34Reference
—
Front Wheel tread range
73.1/76.9 inchesReference
—
Operator station
Cab Availability
AvailableReference
AvailableReference
Seat Suspension
TRUEReference
AvailableReference
Power
Rated Power
—
265 hpReference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.