Head to head · Four-Wheel Drive

Challenger MT645D vs Challenger MT775E

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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 MT775E

Four-Wheel Drive

power
374 hp
displacement
599 ci
Cylinders
Not recorded
Forward gears
16
Full MT775E specs
ChallengerChallenger MT645D
vs
ChallengerChallenger MT775E

How they compare

Headline specs vs. the whole Four-Wheel Drive

n = 132–162

Engine Power

▲ MT775E higher · +123 hp (+49%)
MT645D251 hp
MT775E374 hp
Median Four-Wheel Drive Tractor375 hp

MT645D is in the 15th percentile; MT775E is in the 48th · 162 models

Engine Displacement

▲ MT775E higher · +85 ci (+17%)
MT645D514 ci
MT775E599 ci
Median Four-Wheel Drive Tractor826 ci

MT645D is in the 10th percentile; MT775E is in the 19th · 152 models

Operating Weight

▲ MT775E higher · +8,365 lb (+33%)
MT645D25,365 lb
MT775E33,730 lb
Median Four-Wheel Drive Tractor37,428 lb

MT645D is in the 22nd percentile; MT775E is in the 40th · 132 models

MT645D (A)MT775E (B)Median Four-Wheel Drive Tractor

Full comparison

Every spec, side by side

General Information

SpecChallenger MT645DChallenger MT775EDifference
ManufacturerChallengerChallengerSame
ModelMT645DMT775E—
CategoryFour-Wheel DriveFour-Wheel DriveSame

Engine

SpecChallenger MT645DChallenger MT775EDifference
ManufacturerSisu DieselAGCO POWER—
Power Output251hp374hp▲ MT775E+123 hp · +49%
Rated RPM1,950RPM1,980RPM▲ MT775E+30 RPM · +2%
Cylinders6Not recorded—
Displacement514ci599ci▲ MT775E+85 ci · +17%
Bore4.4in4.4inSame
Stroke5.7in5.7inSame

Transmission

SpecChallenger MT645DChallenger MT775EDifference
TypeCVT (combination of mechanical and hydrostatic sections)Full power shift—

Dimensions & Weight

SpecChallenger MT645DChallenger MT775EDifference
Length216inNot recorded—
Height141inNot recorded—
Operating Weight25,365lb33,730lb▲ MT775E+8,365 lb · +33%

Hydraulics

SpecChallenger MT645DChallenger MT775EDifference
System TypeClosed Center Load Sensing (CCLS)Not recorded—
Steering TypeHydrostatic powerElectro-Hydraulic Differential Steering—

Power Take-off (PTO)

SpecChallenger MT645DChallenger MT775EDifference
Speed 11,000rpm1,000rpmSame

Tires

SpecChallenger MT645DChallenger MT775EDifference
Front Tire Size600/65R34Not recorded—
Rear Tire Size710/75R42Not recorded—

Tread Width

SpecChallenger MT645DChallenger MT775EDifference
Rear TreadNot recorded88in—
Rear Tread AdjustmentNot recorded88.0" (2235 mm) to 119.5" (3035 mm)—

Hitch & Towing

SpecChallenger MT645DChallenger MT775EDifference
Hitch TypeIIICategory IVN/III—
Hitch CategoryIII3—
Hitch PositionRearRearSame
Hitch CapacityNot recorded10,000lb—

Chassis & Drive

SpecChallenger MT645DChallenger MT775EDifference
Chassis Type4x4Not recorded—
Drive Type4WDNot recorded—
Steering TypeHydrostatic powerElectro-Hydraulic Differential Steering—
Brake TypeMultiple wet disc hydraulically operated by two foot pedals that can be locked togetherHydraulic Wet Disc—

Electrical

SpecChallenger MT645DChallenger MT775EDifference
Battery VoltageNot recorded12V—
Starter TypeElectricElectric Starter—

Operator Station

SpecChallenger MT645DChallenger MT775EDifference
TypeCabNot recorded—

Category context

Both models against the field

Engine Power

median 375 hp
A · 15th percentile (251 hp)B · 48th percentile (374 hp)

Engine Displacement

median 826 ci
A · 10th percentile (514 ci)B · 19th percentile (599 ci)

Operating Weight

median 37,428 lb
A · 22nd percentile (25,365 lb)B · 40th percentile (33,730 lb)
A · MT645DB · MT775EMedian Four-Wheel Drive Tractor
Full spec pageChallenger MT645DFull spec pageChallenger MT775E