The Claas Arion 660 and the Claas Challenger 45 are both tractors — here is how they stack up on the figures that matter. Claas Arion 660 leads on rated power with 205 hp against 200 hp. Claas Arion 660 is the lighter machine (7,859 kg vs 10,296 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Claas Challenger 45 holds more fuel (473.1 L vs 367 L) for longer stints between fills. In short: choose the Claas Arion 660 for outright pulling power, or the Claas Challenger 45 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
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Fit & specs
Claas
91
Fit score
Clear
Claas
94
Fit score
Best match
Clear
Rated power
205 hp
200 hp
Confidence
82%
98%
Guide price
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—
Engine
Rated power
153 kW (205 hp)OEM
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Emissions stage
Stage VEPA cert
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Engine
6.8 LDealer
179.0 kWReference
Fuel Type
DieselReference
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Engine torque at rated speed
626 (with boost) ft-lbReference
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Drawbar (claimed)
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126.8 kWReference
Displacement
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6.6 LReference
Bore/Stroke
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105 x 127 mmReference
Power
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179.0 kWReference
Rated RPM
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2100Reference
Starter volts
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12Reference
Coolant capacity
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32.6 LReference
PTO & Hydraulics
Rear lift capacity
5100 kgDealer
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Hydraulic flow
110 L/minDealer
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PTO (claimed)
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149.1 kWReference
Type
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creeperReference
Pressure
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189.6 barReference
Valves
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3 or 4Reference
Pump flow
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118.1 lpmReference
Rear Type
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III/IIReference
Control
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draft controlReference
Rear lift
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6804 kgReference
Rear PTO
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independentReference
Clutch
—
electro-hydraulic wet discReference
Rear PTO Type
—
1000 (1.75)Reference
Engine RPM
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1000@1900Reference
Dimensions
Wheelbase
2810 mmDealer
218 cmReference
Weight
7859 kgDealer
10296 kgReference
Length
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535 cmReference
Height (cab)
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304 cmReference
Height (exhaust)
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317 cmReference
Gauge
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152/172/182/193/203/223/228 cmReference
Capacities
Fuel tank
367 LDealer
473.1 LReference
Capacity
6.7 lReference
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Power
Max Power
185 hpReference
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Transmission
Transmission Type
CVTReference
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Wheel Drive
4WDReference
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Gears
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32 forward and 18 reverseReference
General
Cruise control
AvailableReference
—
Precision Agriculture
Available (Telematic)Reference
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Hydraulics
Remote Valves
4Reference
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Rear Hitch category (SAE designation)
Category 3Reference
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Rear Hitch maximum lift capacity
8,000 kgReference
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Front Hitch lift capacity beyond lift points
3,999.8 kgReference
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Dimensions & weight
Turning radius
5.5 mReference
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Overall weight
12,500.1 kgReference
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Operator station
Cab Availability
trueReference
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Overview
Manufacturer
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ClaasReference
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liquid-cooledReference
Drive
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crawlerReference
Steering
—
differential powerReference
Electrical
Ground
—
negativeReference
Charging system
—
alternatorReference
Battery volts
—
12Reference
Claas 45 Tracks
Width
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231 cmReference
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.