Compare/Challenger 65B vs Challenger MT645C

Challenger 65B vs Challenger MT645C

Verdict: Challenger 65B vs Challenger MT645C

The Challenger 65B and the Challenger MT645C are both tractors — here is how they stack up on the figures that matter. Challenger 65B leads on rated power with 245 hp against 240 hp. Challenger 65B is the lighter machine (15,436 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 65B holds more fuel (832.7 L vs 590.1 L) for longer stints between fills. Challenger MT645C is the newer design (2009 vs 1991). In short: choose the Challenger 65B for outright pulling power, or the Challenger MT645C if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Acreage600 acBudgetMain crop / use

Fit & specs

Challenger

Fit score

Best match

Clear

Challenger

Fit score

Best match

Clear

Rated power

245 hp

240 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Challenger (a part of Caterpillar)Reference

Challenger (a part of AGCO)Reference

Gear 4 used for power test.Reference

Pull at 4.02 KPHReference

Drive

crawlerReference

—

Steering

hydrostatic differential steeringReference

—

Final drives

—

planetaryReference

Differential lock

—

electro-hydraulic front and rearReference

Engine

Fuel tank

832.7 LReference

690.0 LReference

Engine

212.5 kWReference

—

Drawbar (tested)

164.3 kWReference

134.3 kWReference

Displacement

10.5 LReference

8.4 LReference

Bore/Stroke

121 x 152 mmReference

111 x 145 mmReference

Power

212.5 kWReference

—

Air cleaner

dual dry elementsReference

—

Compression

15:1Reference

16.7:1Reference

Rated RPM

2100Reference

2200Reference

Starter volts

12Reference

Coolant capacity

41.6 LReference

—

Max power

164.3 kWReference

130.6 kWReference

Power at rated engine speed

182.8 kWReference

161.2 kWReference

Exhaust fluid (DEF)

—

29.9 LReference

Engine (gross)

—

179.0 kWReference

Emissions

—

Interim Tier 4Reference

Emission control

—

integrated exhaust gas recirculation optional (IECR)Reference

Power (gross)

—

179.0 kWReference

Maximum Power

—

201.3 kWReference

Fuel system

—

electronic high-pressure common railReference

Torque

—

1185.1 NmReference

Torque RPM

—

1500Reference

Starter

—

electricReference

Fuel Type

—

dieselReference

No of Cylinders

—

6 cylinderReference

Rated engine speed

—

2,200 RPMReference

Engine torque at rated speed

—

396.4 kgReference

Bore and stroke

—

4.37x5.71 inchesReference

Compression ratio

—

16.7:1Reference

Cooling system

—

liquid-cooledReference

Transmission

Gears

10 forward and 2 reverseReference

infinite forward and reverseReference

Transmission

—

Techstar CVTReference

Transmission Type

—

CVTReference

Wheel Drive

—

4WDReference

Rear Axle Drive Type

—

planetaryReference

PTO & Hydraulics

PTO (tested)

191.8 kWReference

186.4 kWReference

Type

full power shiftReference

continuously variable transmissionReference

Valves

4Reference

4 to 6Reference

Pump flow

98.4 lpmReference

99.9 lpmReference

Rear Type

III/IVReference

IIIReference

Rear lift

5157 kgReference

—

Rear PTO Type

1000Reference

540E/1000 (1.375)Reference

Power at rated PTO speed

186.5 kWReference

178.2 kWReference

PTO (claimed)

—

152.9 kWReference

Pressure

—

200.0 barReference

Total flow

—

174.9 lpmReference

Control

—

electronic lower-link draft sensingReference

Rear lift (at ends)

—

12002 kgReference

Rear lift (at 24"/610mm)

—

9678 kgReference

Front Hitch

—

IIIReference

Front lift (at ends)

—

4998 kgReference

Rear PTO

—

independentReference

Clutch

—

electro-hydraulicReference

Front PTO

—

independentReference

Front PTO Type

—

1000 (1.375)Reference

Dimensions

Wheelbase

269 cmReference

310 cmReference

Weight

15436 kgReference

24250 to 25795 poundsReference

Operating weight

15436 kgReference

—

Front tire

—

480/70R34Reference

Rear tire

—

520/85R46Reference

Standard tires (ag)

—

Front: 480/70R34. Rear: 520/85R46Reference

Length

—

566 cmReference

Height (cab)

—

338 cmReference

Bar rear axle

—

109 by 2997 mmReference

Front tread

—

154 to 225 cmReference

Rear tread

—

148 to 303 cmReference

Shipping

—

10999 kgReference

Operating

—

11700 kgReference

Challenger 65B Tracks

Width

52 cmReference

—

Length on ground

69 cmReference

—

Area on ground

0.0 m²Reference

—

Ground pressure

0.4 barReference

—

Test results

Fuel use

59.4 l/hourReference

52.2 l/hourReference

Max pull

—

12142 kgReference

Variants

8650

—

similar Massey Ferguson modelReference

Challenger MT645C attachments

MT645C Serial Number Location

Electrical

Ground

—

negativeReference

Charging system

—

alternatorReference

Charging amps

—

240Reference

Batteries

—

2Reference

Battery CCA

—

775Reference

Battery volts

—

12Reference

Battery options

—

2Reference

Total cold cranking amps

—

775 CCAReference

Capacities

Max capacity

—

17640 kgReference

Capacity

—

512.6 ciReference

Diesel exhaust fluid (DEF) tank

—

29.9 LReference

General

Make & Model

—

Challenger (a part of AGCO)Reference

Cruise control

—

AvailableReference

SCV control

—

JoystickReference

Rear Axle Type

—

BarReference

Country of manufacturer

—

FranceReference

PTO

PTO Power

—

205 hpReference

Rear PTO Power

—

AvailableReference

Rear PTO RPM

—

1,000 RPMReference

Front PTO Power

—

AvailableReference

Steering & brakes

Brakes

—

Hydraulic wet discReference

Steering type

—

PowerReference

Hydraulics

Pump Rated Output (total)

—

46.2 gpmReference

Hydraulics Type

—

Closed Center Load SensingReference

Maximum operating pressure

—

2,901 psiReference

Remote Valves

—

4 to 6 ValvesReference

Rear Hitch category (SAE designation)

—

Category IIIReference

Rear Hitch maximum lift capacity

—

12,002 kgReference

Rear Hitch Sensing Type

—

electronic lower-link draft sensingReference

Front Hitch category (SAE designation)

—

Category IIIReference

Dimensions & weight

Height Over Cab

—

338.1 cmReference

Overall Length

—

566.9 cmReference

Overall weight

—

10,999.6 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

Seat Suspension

—

TRUEReference

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.