Head to head · Utility

Allis Chalmers 8550 vs International Harvester 4786

Allis Chalmers 8550 Tractor
Allis ChalmersModel A

Allis Chalmers 8550

Utility

power
300 hp
displacement
731 ci
Cylinders
6
Forward gears
20
Full 8550 specs
International Harvester 4786 Tractor
International HarvesterModel B

International Harvester 4786

Utility

power
350 hp
displacement
798 ci
Cylinders
8
Forward gears
10
Full 4786 specs
Allis ChalmersAllis Chalmers 8550
vs
International HarvesterInternational Harvester 4786

How they compare

Headline specs vs. the whole Utility

n = 4,941–5,720

Engine Power

▲ 4786 higher · +50 hp (+17%)
8550300 hp
4786350 hp
Median Utility Tractor55 hp

8550 is in the 97th percentile; 4786 is in the 98th · 5,383 models

Engine Displacement

▲ 4786 higher · +67 ci (+9%)
8550731 ci
4786798 ci
Median Utility Tractor183 ci

8550 is in the 96th percentile; 4786 is in the 97th · 5,580 models

Cylinders

▲ 4786 higher · +2 (+33%)
85506
47868
Median Utility Tractor4

8550 is in the 93rd percentile; 4786 is in the 99th · 5,720 models

Forward Gears

▲ 8550 higher · +10 (+100%)
855020
478610
Median Utility Tractor12

8550 is in the 86th percentile; 4786 is in the 39th · 4,941 models

8550 (A)4786 (B)Median Utility Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers 8550International Harvester 4786Difference
ManufacturerAllis ChalmersInternational Harvester—
Model85504786—
CategoryUtilityUtilitySame

Engine

SpecAllis Chalmers 8550International Harvester 4786Difference
ManufacturerAllis ChalmersInternational Harvester—
Model6120TDV-800—
Power Output300hp350hp▲ 4786+50 hp · +17%
Rated RPM2,500RPM2,600RPM▲ 4786+100 RPM · +4%
Cylinders68▲ 4786+2 · +33%
Displacement731ci798ci▲ 4786+67 ci · +9%
Bore5.3in5.3inSame
Stroke6.3in4.5in▲ 8550+1.8 in · +40%

Transmission

SpecAllis Chalmers 8550International Harvester 4786Difference
TypePartial Power ShiftSliding gear—

Dimensions & Weight

SpecAllis Chalmers 8550International Harvester 4786Difference
Length285inNot recorded—
Width95.5inNot recorded—
Height139inNot recorded—
Operating Weight27,040lb30,200lb▲ 4786+3,160 lb · +12%

Hydraulics

SpecAllis Chalmers 8550International Harvester 4786Difference
System TypeClosed CenterNot recorded—
Steering TypeHydrostatic PowerNot recorded—

Power Take-off (PTO)

SpecAllis Chalmers 8550International Harvester 4786Difference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Tires

SpecAllis Chalmers 8550International Harvester 4786Difference
Front Tire SizeNot recorded32x24.5—
Rear Tire SizeNot recorded32x24.5—

Hitch & Towing

SpecAllis Chalmers 8550International Harvester 4786Difference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIV/IIIIII—

Chassis & Drive

SpecAllis Chalmers 8550International Harvester 4786Difference
Chassis Type4x4 Articulated 4WD4x4 articulated 4WDSame
Drive Type4WD4WDSame
Steering TypeHydrostatic PowerNot recorded—
Brake TypeHydraulic Wet DiscsNot recorded—

Electrical

SpecAllis Chalmers 8550International Harvester 4786Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers 8550International Harvester 4786Difference
Coolant18galNot recorded—

Operator Station

SpecAllis Chalmers 8550International Harvester 4786Difference
TypeAcousta Cab II with heat and air-conditioningNot recorded—

Category context

Both models against the field

Engine Power

median 55 hp
A · 97th percentile (300 hp)B · 98th percentile (350 hp)

Engine Displacement

median 183 ci
A · 96th percentile (731 ci)B · 97th percentile (798 ci)

Cylinders

median 4
A · 93rd percentile (6)B · 99th percentile (8)

Forward Gears

median 12
A · 86th percentile (20)B · 39th percentile (10)

Operating Weight

median 5,303 lb
A · 96th percentile (27,040 lb)B · 97th percentile (30,200 lb)
A · 8550B · 4786Median Utility Tractor
Full spec pageAllis Chalmers 8550Full spec pageInternational Harvester 4786