Head to head · Agricultural

Challenger MT645B vs International Harvester 7488

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ChallengerModel A

Challenger MT645B

Agricultural

power
235 hp
displacement
449 ci
Cylinders
6
Forward gears
Not recorded
Full MT645B specs
International Harvester 7488 Tractor
International HarvesterModel B

International Harvester 7488

Agricultural

power
235 hp
displacement
466 ci
Cylinders
6
Forward gears
18
Full 7488 specs
ChallengerChallenger MT645B
vs
International HarvesterInternational Harvester 7488

How they compare

Headline specs vs. the whole Agricultural

n = 497–1,130

Engine Power

= Effectively tied
MT645B235 hp
7488235 hp
Median Agricultural Tractor110 hp

MT645B is in the 86th percentile; 7488 is in the 86th · 1,028 models

Engine Displacement

▲ 7488 higher · +17 ci (+4%)
MT645B449 ci
7488466 ci
Median Agricultural Tractor336 ci

MT645B is in the 79th percentile; 7488 is in the 84th · 1,083 models

Cylinders

= Effectively tied
MT645B6
74886
Median Agricultural Tractor5.5

MT645B is in the 74th percentile; 7488 is in the 74th · 1,130 models

Operating Weight

▲ 7488 higher · +580 lb (+3%)
MT645B19,595 lb
748820,175 lb
Median Agricultural Tractor10,914 lb

MT645B is in the 82nd percentile; 7488 is in the 84th · 971 models

MT645B (A)7488 (B)Median Agricultural Tractor

Full comparison

Every spec, side by side

General Information

SpecChallenger MT645BInternational Harvester 7488Difference
ManufacturerChallengerInternational Harvester—
ModelMT645B7488—
CategoryAgriculturalAgriculturalSame

Engine

SpecChallenger MT645BInternational Harvester 7488Difference
ManufacturerSisuInternational Harvester—
Model74ETADTI-466C—
Power Output235hp235hpSame
Rated RPM2,200RPM2,400RPM▲ 7488+200 RPM · +9%
Cylinders66Same
Displacement449ci466ci▲ 7488+17 ci · +4%
Bore4.3in4.3inSame
Stroke5.3in5.4inSame

Transmission

SpecChallenger MT645BInternational Harvester 7488Difference
Typecontinuously variable transmission (CVT)Partial power shift—

Dimensions & Weight

SpecChallenger MT645BInternational Harvester 7488Difference
Length206in239in▲ 7488+33 in · +16%
Width118in114in▲ MT645B+4 in · +4%
Height124in129in▲ 7488+5 in · +4%
Operating Weight19,595lb20,175lb▲ 7488+580 lb · +3%

Hydraulics

SpecChallenger MT645BInternational Harvester 7488Difference
System TypePressure Flow Compensated (PFC)Not recorded—
Steering TypeNot recordedHydrostatic power—

Power Take-off (PTO)

SpecChallenger MT645BInternational Harvester 7488Difference
Speed 1Not recorded1,000rpm—

Hitch & Towing

SpecChallenger MT645BInternational Harvester 7488Difference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIIIIII/II—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecChallenger MT645BInternational Harvester 7488Difference
Chassis TypeNot recorded4x4 articulated 4WD—
Drive TypeNot recorded4WD—
Steering TypeNot recordedHydrostatic power—

Electrical

SpecChallenger MT645BInternational Harvester 7488Difference
Starter TypeElectricElectricSame

Capacities

SpecChallenger MT645BInternational Harvester 7488Difference
Coolant8.9gal9gal▲ 7488+0.1 gal · +1%

Operator Station

SpecChallenger MT645BInternational Harvester 7488Difference
TypeNot recordedCab standard with air-conditioning—

Category context

Both models against the field

Engine Power

median 110 hp
A · 86th percentile (235 hp)B · 86th percentile (235 hp)

Engine Displacement

median 336 ci
A · 79th percentile (449 ci)B · 84th percentile (466 ci)

Cylinders

median 5.5
A · 74th percentile (6)B · 74th percentile (6)

Operating Weight

median 10,914 lb
A · 82nd percentile (19,595 lb)B · 84th percentile (20,175 lb)

Length

median 173 in
A · 82nd percentile (206 in)B · 94th percentile (239 in)
A · MT645BB · 7488Median Agricultural Tractor
Full spec pageChallenger MT645BFull spec pageInternational Harvester 7488