Head to head · Four-Wheel Drive

Challenger MT645D vs Challenger MT645E

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ChallengerModel A

Challenger MT645D

Four-Wheel Drive

power
251 hp
displacement
514 ci
Cylinders
6
Forward gears
Not recorded
Full MT645D specs
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ChallengerModel B

Challenger MT645E

Agricultural

power
243 hp
displacement
513 ci
Cylinders
6
Forward gears
Not recorded
Full MT645E specs
ChallengerChallenger MT645D
vs
ChallengerChallenger MT645E

How they compare

Headline specs vs. the whole Four-Wheel Drive

n = 98–162

Engine Power

▲ MT645D higher · +8 hp (+3%)
MT645D251 hp
MT645E243 hp
Median Four-Wheel Drive Tractor375 hp

MT645D is in the 15th percentile; MT645E is in the 14th · 162 models

Engine Displacement

▲ MT645D higher · +1 ci (<1%)
MT645D514 ci
MT645E513 ci
Median Four-Wheel Drive Tractor826 ci

MT645D is in the 10th percentile; MT645E is in the 10th · 152 models

Cylinders

= Effectively tied
MT645D6
MT645E6
Median Four-Wheel Drive Tractor6

MT645D is in the 50th percentile; MT645E is in the 50th · 159 models

Operating Weight

▲ MT645D higher · +695 lb (+3%)
MT645D25,365 lb
MT645E24,670 lb
Median Four-Wheel Drive Tractor37,428 lb

MT645D is in the 22nd percentile; MT645E is in the 20th · 132 models

MT645D (A)MT645E (B)Median Four-Wheel Drive Tractor

Full comparison

Every spec, side by side

General Information

SpecChallenger MT645DChallenger MT645EDifference
ManufacturerChallengerChallengerSame
ModelMT645DMT645E—
CategoryFour-Wheel DriveAgricultural—

Engine

SpecChallenger MT645DChallenger MT645EDifference
ManufacturerSisu DieselAGCO POWER—
Power Output251hp243hp▲ MT645D+8 hp · +3%
Rated RPM1,950RPM2,100RPM▲ MT645E+150 RPM · +8%
Cylinders66Same
Displacement514ci513ci▲ MT645D+1 ci · <1%
Bore4.4in4.4inSame
Stroke5.7in5.7inSame

Transmission

SpecChallenger MT645DChallenger MT645EDifference
TypeCVT (combination of mechanical and hydrostatic sections)Techstar CVT (Continuously Variable transmission)—

Dimensions & Weight

SpecChallenger MT645DChallenger MT645EDifference
Length216in219in▲ MT645E+3 in · +1%
Height141in141inSame
Operating Weight25,365lb24,670lb▲ MT645D+695 lb · +3%

Hydraulics

SpecChallenger MT645DChallenger MT645EDifference
System TypeClosed Center Load Sensing (CCLS)Closed center load sensing (CCLS)Same
Steering TypeHydrostatic powerHydrostatic PowerSame

Power Take-off (PTO)

SpecChallenger MT645DChallenger MT645EDifference
Speed 11,000rpmNot recorded—

Tires

SpecChallenger MT645DChallenger MT645EDifference
Front Tire Size600/65R34Not recorded—
Rear Tire Size710/75R42Not recorded—

Hitch & Towing

SpecChallenger MT645DChallenger MT645EDifference
Hitch TypeIIIRear Hitch—
Hitch CategoryIIIIII / IVN—
Hitch PositionRearRearSame

Chassis & Drive

SpecChallenger MT645DChallenger MT645EDifference
Chassis Type4x4Not recorded—
Drive Type4WDNot recorded—
Steering TypeHydrostatic powerHydrostatic PowerSame
Brake TypeMultiple wet disc hydraulically operated by two foot pedals that can be locked togetherNot recorded—

Electrical

SpecChallenger MT645DChallenger MT645EDifference
Starter TypeElectricElectricSame

Operator Station

SpecChallenger MT645DChallenger MT645EDifference
TypeCabCabSame

Category context

Both models against the field

Engine Power

median 375 hp
A · 15th percentile (251 hp)B · 14th percentile (243 hp)

Engine Displacement

median 826 ci
A · 10th percentile (514 ci)B · 10th percentile (513 ci)

Cylinders

median 6
A · 50th percentile (6)B · 50th percentile (6)

Operating Weight

median 37,428 lb
A · 22nd percentile (25,365 lb)B · 20th percentile (24,670 lb)

Length

median 275 in
A · 5th percentile (216 in)B · 6th percentile (219 in)
A · MT645DB · MT645EMedian Four-Wheel Drive Tractor
Full spec pageChallenger MT645DFull spec pageChallenger MT645E