Head to head · Four-Wheel Drive

CaseIH STX450 vs Challenger MT855C

CaseIH STX450 Tractor
CaseIHModel A

CaseIH STX450

Four-Wheel Drive

power
450 hp
displacement
912 ci
Cylinders
6
Forward gears
16
Full STX450 specs
Image not recorded
ChallengerModel B

Challenger MT855C

Four-Wheel Drive

power
475 hp
displacement
923 ci
Cylinders
6
Forward gears
16
Full MT855C specs
CaseIHCaseIH STX450
vs
ChallengerChallenger MT855C

How they compare

Headline specs vs. the whole Four-Wheel Drive

n = 71–162

Engine Power

▲ MT855C higher · +25 hp (+6%)
STX450450 hp
MT855C475 hp
Median Four-Wheel Drive Tractor375 hp

STX450 is in the 64th percentile; MT855C is in the 71st · 162 models

Engine Displacement

▲ MT855C higher · +11 ci (+1%)
STX450912 ci
MT855C923 ci
Median Four-Wheel Drive Tractor826 ci

STX450 is in the 78th percentile; MT855C is in the 83rd · 152 models

Cylinders

= Effectively tied
STX4506
MT855C6
Median Four-Wheel Drive Tractor6

STX450 is in the 50th percentile; MT855C is in the 50th · 159 models

Forward Gears

= Effectively tied
STX45016
MT855C16
Median Four-Wheel Drive Tractor16

STX450 is in the 50th percentile; MT855C is in the 50th · 146 models

STX450 (A)MT855C (B)Median Four-Wheel Drive Tractor

Full comparison

Every spec, side by side

General Information

SpecCaseIH STX450Challenger MT855CDifference
ManufacturerCaseIHChallenger—
ModelSTX450MT855C—
CategoryFour-Wheel DriveFour-Wheel DriveSame

Engine

SpecCaseIH STX450Challenger MT855CDifference
ManufacturerCumminsCaterpillar—
ModelQSX 15C15 ACERT—
Power Output450hp475hp▲ MT855C+25 hp · +6%
Rated RPM2,000RPM2,100RPM▲ MT855C+100 RPM · +5%
Cylinders66Same
Displacement912ci923ci▲ MT855C+11 ci · +1%
Bore5.4in5.4inSame
Stroke6.7in6.8in▲ MT855C+0.1 in · +1%

Transmission

SpecCaseIH STX450Challenger MT855CDifference
TypeFull Power ShiftFull power shiftSame

Dimensions & Weight

SpecCaseIH STX450Challenger MT855CDifference
Length318in270in▲ STX450+48 in · +18%
Width44in142in▲ MT855C+98 in · +223%
Height152in138in▲ STX450+14 in · +10%
Operating Weight39,325lb41,000lb▲ MT855C+1,675 lb · +4%

Hydraulics

SpecCaseIH STX450Challenger MT855CDifference
System TypePressure Flow Compensated (PFC)Closed center pressure-flow compensated—
Steering TypeHydrostatic PowerSpeed sensitive differential—

Power Take-off (PTO)

SpecCaseIH STX450Challenger MT855CDifference
Type1000 (1.75)Not recorded—

Hitch & Towing

SpecCaseIH STX450Challenger MT855CDifference
Hitch TypeIVN/IIINot recorded—
Hitch CategoryNot recordedIII/IVN—
Hitch PositionRearRearSame

Chassis & Drive

SpecCaseIH STX450Challenger MT855CDifference
Steering TypeHydrostatic PowerSpeed sensitive differential—
Brake TypeNot recordedHydraulic wet discs—

Electrical

SpecCaseIH STX450Challenger MT855CDifference
Starter TypeElectricElectricSame

Operator Station

SpecCaseIH STX450Challenger MT855CDifference
TypeNot recordedCab—

Category context

Both models against the field

Engine Power

median 375 hp
A · 64th percentile (450 hp)B · 71st percentile (475 hp)

Engine Displacement

median 826 ci
A · 78th percentile (912 ci)B · 83rd percentile (923 ci)

Cylinders

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

Forward Gears

median 16
A · 50th percentile (16)B · 50th percentile (16)

Operating Weight

median 37,428 lb
A · 55th percentile (39,325 lb)B · 61st percentile (41,000 lb)
A · STX450B · MT855CMedian Four-Wheel Drive Tractor
Full spec pageCaseIH STX450Full spec pageChallenger MT855C