Head to head · Four-Wheel Drive

Challenger MT645D vs Challenger MT755D

Image not recorded
ChallengerModel A

Challenger MT645D

Four-Wheel Drive

power
251 hp
displacement
514 ci
Cylinders
6
Forward gears
Not recorded
Full MT645D specs
Challenger MT755D Tractor
ChallengerModel B

Challenger MT755D

Agricultural

power
318 hp
displacement
513 ci
Cylinders
6
Forward gears
16
Full MT755D specs
ChallengerChallenger MT645D
vs
ChallengerChallenger MT755D

How they compare

Headline specs vs. the whole Four-Wheel Drive

n = 132–162

Engine Power

▲ MT755D higher · +67 hp (+27%)
MT645D251 hp
MT755D318 hp
Median Four-Wheel Drive Tractor375 hp

MT645D is in the 15th percentile; MT755D is in the 30th · 162 models

Engine Displacement

▲ MT645D higher · +1 ci (<1%)
MT645D514 ci
MT755D513 ci
Median Four-Wheel Drive Tractor826 ci

MT645D is in the 10th percentile; MT755D is in the 10th · 152 models

Cylinders

= Effectively tied
MT645D6
MT755D6
Median Four-Wheel Drive Tractor6

MT645D is in the 50th percentile; MT755D is in the 50th · 159 models

Operating Weight

▲ MT755D higher · +6,155 lb (+24%)
MT645D25,365 lb
MT755D31,520 lb
Median Four-Wheel Drive Tractor37,428 lb

MT645D is in the 22nd percentile; MT755D is in the 34th · 132 models

MT645D (A)MT755D (B)Median Four-Wheel Drive Tractor

Full comparison

Every spec, side by side

General Information

SpecChallenger MT645DChallenger MT755DDifference
ManufacturerChallengerChallengerSame
ModelMT645DMT755D—
CategoryFour-Wheel DriveAgricultural, Four-Wheel Drive—

Engine

SpecChallenger MT645DChallenger MT755DDifference
ManufacturerSisu DieselAGCO POWER—
Power Output251hp318hp▲ MT755D+67 hp · +27%
Rated RPM1,950RPMNot recorded—
Cylinders66Same
Displacement514ci513ci▲ MT645D+1 ci · <1%
Bore4.4in4.4inSame
Stroke5.7in5.7inSame

Transmission

SpecChallenger MT645DChallenger MT755DDifference
TypeCVT (combination of mechanical and hydrostatic sections)Full Power Shift—

Dimensions & Weight

SpecChallenger MT645DChallenger MT755DDifference
Length216inNot recorded—
Height141inNot recorded—
Operating Weight25,365lb31,520lb▲ MT755D+6,155 lb · +24%

Hydraulics

SpecChallenger MT645DChallenger MT755DDifference
System TypeClosed Center Load Sensing (CCLS)Closed-center Pressure-flow Compensated (PFC)—
Steering TypeHydrostatic powerElectro-hydraulic Differential—

Power Take-off (PTO)

SpecChallenger MT645DChallenger MT755DDifference
Speed 11,000rpmNot recorded—

Tires

SpecChallenger MT645DChallenger MT755DDifference
Front Tire Size600/65R34Not recorded—
Rear Tire Size710/75R42Not recorded—

Hitch & Towing

SpecChallenger MT645DChallenger MT755DDifference
Hitch TypeIIINot recorded—
Hitch CategoryIIIIII/IIIN—
Hitch PositionRearRearSame

Chassis & Drive

SpecChallenger MT645DChallenger MT755DDifference
Chassis Type4x4Not recorded—
Drive Type4WDNot recorded—
Steering TypeHydrostatic powerElectro-hydraulic Differential—
Brake TypeMultiple wet disc hydraulically operated by two foot pedals that can be locked togetherHydraulic Wet Disc—

Electrical

SpecChallenger MT645DChallenger MT755DDifference
Starter TypeElectric12 Volts Electric Starter—

Operator Station

SpecChallenger MT645DChallenger MT755DDifference
TypeCabNot recorded—

Category context

Both models against the field

Engine Power

median 375 hp
A · 15th percentile (251 hp)B · 30th percentile (318 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 · 34th percentile (31,520 lb)
A · MT645DB · MT755DMedian Four-Wheel Drive Tractor
Full spec pageChallenger MT645DFull spec pageChallenger MT755D