Head to head · Utility

Allis Chalmers 4W-220 vs Allis Chalmers 8550

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Allis ChalmersModel A

Allis Chalmers 4W-220

Utility

power
220 hp
displacement
426 ci
Cylinders
6
Forward gears
20
Full 4W-220 specs
Allis Chalmers 8550 Tractor
Allis ChalmersModel B

Allis Chalmers 8550

Utility

power
300 hp
displacement
731 ci
Cylinders
6
Forward gears
20
Full 8550 specs
Allis ChalmersAllis Chalmers 4W-220
vs
Allis ChalmersAllis Chalmers 8550

How they compare

Headline specs vs. the whole Utility

n = 4,321–5,720

Engine Power

▲ 8550 higher · +80 hp (+36%)
4W-220220 hp
8550300 hp
Median Utility Tractor55 hp

4W-220 is in the 95th percentile; 8550 is in the 97th · 5,383 models

Engine Displacement

▲ 8550 higher · +305 ci (+72%)
4W-220426 ci
8550731 ci
Median Utility Tractor183 ci

4W-220 is in the 92nd percentile; 8550 is in the 96th · 5,580 models

Cylinders

= Effectively tied
4W-2206
85506
Median Utility Tractor4

4W-220 is in the 93rd percentile; 8550 is in the 93rd · 5,720 models

Forward Gears

= Effectively tied
4W-22020
855020
Median Utility Tractor12

4W-220 is in the 86th percentile; 8550 is in the 86th · 4,941 models

4W-220 (A)8550 (B)Median Utility Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers 4W-220Allis Chalmers 8550Difference
ManufacturerAllis ChalmersAllis ChalmersSame
Model4W-2208550—
CategoryUtilityUtilitySame

Engine

SpecAllis Chalmers 4W-220Allis Chalmers 8550Difference
ManufacturerAllis ChalmersAllis ChalmersSame
Model670 HI6120T—
Power Output220hp300hp▲ 8550+80 hp · +36%
Rated RPM2,400RPM2,500RPM▲ 8550+100 RPM · +4%
Cylinders66Same
Displacement426ci731ci▲ 8550+305 ci · +72%
Bore4.3in5.3in▲ 8550+1 in · +23%
Stroke5in6.3in▲ 8550+1.3 in · +26%

Transmission

SpecAllis Chalmers 4W-220Allis Chalmers 8550Difference
TypeTwo-speed power shiftPartial Power Shift—

Dimensions & Weight

SpecAllis Chalmers 4W-220Allis Chalmers 8550Difference
Length129in285in▲ 8550+156 in · +121%
WidthNot recorded95.5in—
Height129in139in▲ 8550+10 in · +8%
Operating Weight21,475lb27,040lb▲ 8550+5,565 lb · +26%

Hydraulics

SpecAllis Chalmers 4W-220Allis Chalmers 8550Difference
System TypeClosed center load-sensingClosed Center—
Steering TypeHydraulic powerHydrostatic Power—

Power Take-off (PTO)

SpecAllis Chalmers 4W-220Allis Chalmers 8550Difference
TypeIndependentIndependentSame
Speed 11,000rpm1,000rpmSame

Hitch & Towing

SpecAllis Chalmers 4W-220Allis Chalmers 8550Difference
Hitch TypeNot recordedThree-Point Hitch—
Hitch CategoryIIIIV/III—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecAllis Chalmers 4W-220Allis Chalmers 8550Difference
Chassis Type4x4 articulated 4WD4x4 Articulated 4WDSame
Drive Type4WD4WDSame
Steering TypeHydraulic powerHydrostatic Power—
Brake TypeNot recordedHydraulic Wet Discs—

Electrical

SpecAllis Chalmers 4W-220Allis Chalmers 8550Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers 4W-220Allis Chalmers 8550Difference
Coolant10.3gal18gal▲ 8550+7.7 gal · +75%

Operator Station

SpecAllis Chalmers 4W-220Allis Chalmers 8550Difference
TypeCab (standard)Acousta Cab II with heat and air-conditioning—

Category context

Both models against the field

Engine Power

median 55 hp
A · 95th percentile (220 hp)B · 97th percentile (300 hp)

Engine Displacement

median 183 ci
A · 92nd percentile (426 ci)B · 96th percentile (731 ci)

Cylinders

median 4
A · 93rd percentile (6)B · 93rd percentile (6)

Forward Gears

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

Operating Weight

median 5,303 lb
A · 95th percentile (21,475 lb)B · 96th percentile (27,040 lb)
A · 4W-220B · 8550Median Utility Tractor
Full spec pageAllis Chalmers 4W-220Full spec pageAllis Chalmers 8550