Compare/Challenger MT595B vs Challenger MT645E

Challenger MT595B vs Challenger MT645E

Verdict: Challenger MT595B vs Challenger MT645E

The Challenger MT595B and the Challenger MT645E are both tractors — here is how they stack up on the figures that matter. Challenger MT645E leads on rated power with 218 hp against 215 hp. Challenger MT595B is the lighter machine (7,439 kg vs 10,800 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Challenger MT645E holds more fuel (628.3 L vs 355.8 L) for longer stints between fills. Challenger MT645E is the newer design (2014 vs 2010). In short: choose the Challenger MT645E for outright pulling power, or the Challenger MT595B 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

215 hp

218 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Challenger (a part of AGCO)Reference

Pull at 5 kphReference

Pull at 2.45KPHReference

Steering

hydrostatic powerReference

Differential lock

—

electro-hydraulicReference

Variants

7499

similar Massey Ferguson modelReference

—

8727

—

similar Massey Ferguson modelReference

Engine

Engine (gross)

160.3 kWReference

—

Drawbar (tested)

121.1 kWReference

155.9 kWReference

Displacement

7.4 LReference

8.4 LReference

Bore/Stroke

108 x 134 mmReference

111 x 145 mmReference

Emissions

Tier IIIReference

Tier IVReference

Power (gross)

160.3 kWReference

—

Maximum Power

179.0 kWReference

201.3 kWReference

Fuel system

electronic common railReference

—

Starter

electricReference

Starter volts

12Reference

Coolant capacity

34.0 LReference

—

Max power

121.1 kWReference

155.9 kWReference

Power at rated engine speed

146.6 kWReference

162.4 kWReference

Fuel Type

dieselReference

No of Cylinders

6 cylinderReference

6 CylinderReference

Emissions compliance

Tier IIIReference

Tier IV | selective catalytic reduction (SCR)Reference

Bore and stroke

4.252x5.276 inchesReference

4.37x5.71 inchesReference

Cooling system

liquid-cooledReference

Exhaust fluid (DEF)

—

59.8 LReference

Engine

—

179.0 kWReference

Emission control

—

selective catalytic reduction (SCR)Reference

Power

—

179.0 kWReference

Rated RPM

—

2100Reference

Rated engine speed

—

2,100 RPMReference

Transmission

Techstar CVTReference

Gears

infinite forward and reverseReference

infinite forward and reverse (2-range)Reference

Oil capacity

52.1 LReference

—

Transmission Type

CVTReference

Wheel Drive

4 WDReference

4WDReference

forward and reverse options

—

continuously variable transmission - infinite F and (2-range) RReference

PTO & Hydraulics

PTO (claimed)

134.2 kWReference

152.9 kWReference

PTO (tested)

162.0 kWReference

180.9 kWReference

Hydraulic system

99.9 LReference

—

Type

continuously variable transmissionReference

continuously variable transmission (CVT)Reference

Capacity

99.9 LReference

512.6 ciReference

Pressure

200.0 barReference

Valves

3 or 4Reference

4 to 6Reference

Total flow

147.6 lpmReference

—

Rear Type

IIIReference

III/IVNReference

Control

lower link draft sensingReference

—

Rear lift (at 24"/610mm)

7321 kgReference

—

Front Hitch

optionalReference

—

Front lift

3991 kgReference

—

Rear PTO

independentReference

Clutch

electro-hydraulicReference

—

Rear PTO Type

540/540E/1000 (1.375)Reference

1000/1000E (1.75)Reference

Front PTO

optionalReference

—

Front PTO Type

1000 (1.375)Reference

—

Power at rated PTO speed

160.5 kWReference

180.0 kWReference

Pump flow

—

204.4 lpmReference

Rear lift (at ends)

—

11999 kgReference

Drawbar

—

Cat 4 (optional)Reference

Capacities

Fuel

355.8 LReference

—

Fuel tank

355.8 LReference

628.3 LReference

Diesel exhaust fluid (DEF) tank

—

59.8 LReference

Dimensions

Wheelbase

299 cmReference

309 cmReference

Weight

7439 kgReference

10800 kgReference

Length

506 cmReference

555 cmReference

Width

299 cmReference

—

Height (cab)

309 cmReference

358 cmReference

Shipping weight

7439 kgReference

10800 kgReference

Clearance (drawbar)

40 cmReference

—

Rear axle

3048 mmReference

—

Rear tread

152 to 304 cmReference

—

Bar rear axle

—

109 by 2997 mmReference

Electrical

Ground

negativeReference

Charging system

alternatorReference

Charging amps

175Reference

240 (twin 120A)Reference

Batteries

2Reference

—

Battery CCA

600 (each)Reference

—

Battery volts

12Reference

Total cold cranking amps

600 (each) CCAReference

—

Charging volts

—

12Reference

Test results

Fuel use

46.2 l/hourReference

54.1 l/hourReference

Max pull

7976 kgReference

10319 kgReference

General

Make & Model

Challenger (a part of AGCO)Reference

Cruise control

—

AvailableReference

Drawbar category

—

Cat. 3Reference

Rear Axle Type

—

Bar: 4.33 by 105 inchesReference

Country of manufacturer

—

USAReference

PTO

PTO Power

180 hpReference

205 hpReference

Rear PTO Power

AvailableReference

Rear PTO RPM

1,000 RPMReference

Front PTO Power

AvailableReference

—

Steering & brakes

Brakes

Hydraulic wet disc brakesReference

Steering type

Hydrostatic PowerReference

hydrostatic powerReference

Hydraulics

Pump Rated Output (total)

39 gpmReference

—

Hydraulics Type

Closed Center Pressure Flow CompensatedReference

closed center load sensing (CCLS)Reference

Maximum operating pressure

2,900 psiReference

Remote Valves

3 or 4 ValvesReference

4 to 6 ValvesReference

Rear Hitch category (SAE designation)

Category IIIReference

Category III/IVNReference

Rear Hitch Sensing Type

lower link draft sensingReference

—

Capacity Valves

—

24 ValvesReference

Rear Hitch maximum lift capacity

—

11,999.8 kgReference

Dimensions & weight

Height Over Cab

309.6 cmReference

358.1 cmReference

Overall Length

506.7 cmReference

555.2 cmReference

Overall Width

300 cmReference

—

Drawbar clearance

40.6 cmReference

—

Overall weight

7,438.9 kgReference

10,800 kgReference

Wheels & tyres

Rear wheel tread range

60 to 120 inchesReference

—

Operator station

Cab Availability

AvailableReference

Seat Suspension

—

TrueReference

Power

Rated Power

—

240 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.