Compare/Challenger MT595D vs Challenger MT645B

Challenger MT595D vs Challenger MT645B

Verdict: Challenger MT595D vs Challenger MT645B

The Challenger MT595D and the Challenger MT645B are both tractors — here is how they stack up on the figures that matter. Challenger MT595D leads on rated power with 206 hp against 205 hp. Challenger MT595D is the newer design (2012 vs 2005). In short: choose the Challenger MT595D for outright pulling power, or the Challenger MT645B 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

206 hp

205 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Challenger (a part of AGCO)Reference

Gear 1D used for pull test.Reference

Pull at 10 KPHReference

Factories

Jackson, Minnesota, USAReference

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Original price

$214,177 (2013 deluxe )Reference

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Final drives

inboard planetaryReference

Steering

hydrostatic powerReference

—

Differential lock

—

electrohydraulic front and rearReference

Trailer brakes

—

hydraulicReference

Variants

7626

similar Massey Ferguson modelReference

—

Engine

Fuel tank

431.5 LReference

—

Exhaust fluid (DEF)

41.6 LReference

—

Engine

179.0 kWReference

175.2 kWReference

Drawbar (tested)

132.6 kWReference

128.5 kWReference

Displacement

7.4 LReference

Bore/Stroke

108 x 134 mmReference

Emissions

Interim Tier IVReference

—

Emission control

selective catalyitic reduction (SCR)Reference

—

Power

179.0 kWReference

175.2 kWReference

Fuel system

electronic high pressure common railReference

—

Air cleaner

dual stage dryReference

dual paper elementsReference

Starter

electricReference

—

Starter volts

12Reference

Max power

132.6 kWReference

128.5 kWReference

Power at rated engine speed

153.5 kWReference

152.7 kWReference

Fuel Type

dieselReference

—

No of Cylinders

6 cylinderReference

—

Emissions compliance

Interim Tier IV | selective catalyitic reduction (SCR)Reference

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Bore and stroke

4.252x5.276 inchesReference

—

Cooling system

liquid-cooledReference

—

Pre-heating

—

1000W coolant heaterReference

Compression

—

17.5:1Reference

Rated RPM

—

2200Reference

Oil capacity

—

67.0 LReference

Coolant capacity

—

33.7 LReference

Transmission

AutoPower VIReference

TechStarReference

Gears

24 forward and reverseReference

infinite forward and reverse (2-range)Reference

Transmission Type

PowershiftReference

—

forward and reverse options

AutoPower VI 24F and 24 RReference

—

Wheel Drive

4WDReference

—

Rear Axle Drive Type

inboard planetaryReference

—

PTO & Hydraulics

PTO (claimed)

145.4 kWReference

149.1 kWReference

PTO (tested)

174.4 kWReference

166.2 kWReference

Type

six-speed power shiftReference

continuously variable transmission (CVT)Reference

Pressure

200.0 barReference

Valves

2 to 4Reference

4 to 6Reference

SCV flow

92.0 lpmReference

—

Total flow

147.6 lpmReference

Rear Type

IIIReference

Control

electronic lower link draft controlReference

—

Drawbar

Cat. 2Reference

—

Rear PTO

independentReference

Clutch

electro-hydraulicReference

electro-hydraulic wet discReference

Power at rated PTO speed

172.9 kWReference

165.2 kWReference

Hydraulic system

—

99.9 LReference

Rear lift (at 24"/610mm)

—

7076 kgReference

Front Hitch

—

IIReference

Front lift

—

5488 kgReference

Rear PTO Type

—

1000 (1.75)Reference

Engine RPM

—

1000@2031Reference

Dimensions

Front tire

420/90R30Reference

380/85R34Reference

Rear tire

480/80R46Reference

Standard tires (ag)

Front: 420/90R30. Rear: 480/80R46Reference

—

Bar rear axle

109 by 2202 mmReference

109 by 2997 mmReference

Rear axle

109 by 3002 mmReference

—

Weight

—

18308 to 19595 poundsReference

Ag front

—

380/85R34Reference

Ag rear

—

480/80R46Reference

Length

—

523 cmReference

Width

—

299 cmReference

Height (cab)

—

313 cmReference

Ground clearance

—

56 cmReference

Rear tread

—

152 to 223 cmReference

Shipping

—

8304 kgReference

Operating

—

8888 kgReference

Max Drawbar

—

2549 kgReference

Max front axle

—

4926 kgReference

Max rear axle

—

7731 kgReference

Electrical

Ground

negativeReference

Charging system

alternatorReference

Charging amps

240Reference

150Reference

Batteries

2Reference

Battery CCA

600Reference

775Reference

Battery volts

12Reference

Total cold cranking amps

600 CCAReference

—

Test results

Fuel use

42.8 l/hourReference

45.4 l/hourReference

Max pull

8055 kgReference

7690 kgReference

General

Make & Model

Challenger (a part of AGCO)Reference

—

Cruise control

AvailableReference

—

SCV control

joystickReference

—

Drawbar category

Cat. 2Reference

—

Country of manufacturer

France | USAReference

—

Capacities

Capacity

449.4 ciReference

99.9 LReference

Diesel exhaust fluid (DEF) tank

41.6 LReference

—

Fuel

—

601.8 LReference

PTO

PTO Power

195 hpReference

—

Rear PTO Power

AvailableReference

—

Steering & brakes

Brakes

Hydraulic wet disc brakesReference

—

Steering type

hydrostatic powerReference

—

Hydraulics

Pump Rated Output (total)

39 gpmReference

—

Hydraulics Type

closed center load sensing (CCLS)Reference

—

Maximum operating pressure

2,900 psiReference

—

Remote Valves

2 to 4 ValvesReference

—

Rear Hitch category (SAE designation)

Category IIIReference

—

Rear Hitch Sensing Type

electronic lower link draft controlReference

—

Dimensions & weight

Wheelbase

297.2 cmReference

307 cmReference

Wheels & tyres

Rear Wheel Type

480/80R46Reference

—

Front Wheel Type

420/90R30Reference

—

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.