Head to head · Four-Wheel Drive

CaseIH STX380 vs Challenger MT645C

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CaseIHModel A

CaseIH STX380

Four-Wheel Drive

power
380 hp
displacement
786 ci
Cylinders
6
Forward gears
16
Full STX380 specs
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ChallengerModel B

Challenger MT645C

Utility

power
242 hp
displacement
513 ci
Cylinders
6
Forward gears
Not recorded
Full MT645C specs
CaseIHCaseIH STX380
vs
ChallengerChallenger MT645C

How they compare

Headline specs vs. the whole Four-Wheel Drive

n = 132–162

Engine Power

▲ STX380 higher · +138 hp (+57%)
STX380380 hp
MT645C242 hp
Median Four-Wheel Drive Tractor375 hp

STX380 is in the 50th percentile; MT645C is in the 14th · 162 models

Engine Displacement

▲ STX380 higher · +273 ci (+53%)
STX380786 ci
MT645C513 ci
Median Four-Wheel Drive Tractor826 ci

STX380 is in the 33rd percentile; MT645C is in the 10th · 152 models

Cylinders

= Effectively tied
STX3806
MT645C6
Median Four-Wheel Drive Tractor6

STX380 is in the 50th percentile; MT645C is in the 50th · 159 models

Operating Weight

▲ STX380 higher · +15,810 lb (+61%)
STX38041,605 lb
MT645C25,795 lb
Median Four-Wheel Drive Tractor37,428 lb

STX380 is in the 61st percentile; MT645C is in the 23rd · 132 models

STX380 (A)MT645C (B)Median Four-Wheel Drive Tractor

Full comparison

Every spec, side by side

General Information

SpecCaseIH STX380Challenger MT645CDifference
ManufacturerCaseIHChallenger—
ModelSTX380MT645C—
CategoryFour-Wheel DriveUtility—

Engine

SpecCaseIH STX380Challenger MT645CDifference
ManufacturerIvecoAGCO—
ModelNot recordedSisu Diesel (Serial No. T00767)—
Power Output380hp242hp▲ STX380+138 hp · +57%
Rated RPM2,000RPM2,200RPM▲ MT645C+200 RPM · +10%
Cylinders66Same
Displacement786ci513ci▲ STX380+273 ci · +53%
Bore5.3in4.4in▲ STX380+0.9 in · +20%
Stroke5.9in5.7in▲ STX380+0.2 in · +4%

Transmission

SpecCaseIH STX380Challenger MT645CDifference
Type16-speed full power shiftContinuously variable transmission—

Dimensions & Weight

SpecCaseIH STX380Challenger MT645CDifference
LengthNot recorded223in—
HeightNot recorded133in—
Operating Weight41,605lb25,795lb▲ STX380+15,810 lb · +61%

Hydraulics

SpecCaseIH STX380Challenger MT645CDifference
System TypePressure flow compensatedClosed center load sensing—
Steering TypeHydrostatic powerNot recorded—

Hitch & Towing

SpecCaseIH STX380Challenger MT645CDifference
Hitch TypeIVNThree-Point Hitch—
Hitch CategoryNot recordedIII—
Hitch PositionRearRearSame
Hitch Capacity45,600lb26,460lb▲ STX380+19,140 lb · +72%

Chassis & Drive

SpecCaseIH STX380Challenger MT645CDifference
Chassis Type4x4 articulated 4WDNot recorded—
Drive Type4WDNot recorded—
Steering TypeHydrostatic powerNot recorded—

Electrical

SpecCaseIH STX380Challenger MT645CDifference
Starter TypeNot recordedElectric—

Category context

Both models against the field

Engine Power

median 375 hp
A · 50th percentile (380 hp)B · 14th percentile (242 hp)

Engine Displacement

median 826 ci
A · 33rd percentile (786 ci)B · 10th percentile (513 ci)

Cylinders

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

Operating Weight

median 37,428 lb
A · 61st percentile (41,605 lb)B · 23rd percentile (25,795 lb)
A · STX380B · MT645CMedian Four-Wheel Drive Tractor
Full spec pageCaseIH STX380Full spec pageChallenger MT645C