Head to head · Utility

Allis Chalmers 4W-305 vs Allis Chalmers 8550

Allis Chalmers 4W-305 Tractor
Allis ChalmersModel A

Allis Chalmers 4W-305

Utility

power
305 hp
displacement
731 ci
Cylinders
6
Forward gears
20
Full 4W-305 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-305
vs
Allis ChalmersAllis Chalmers 8550

How they compare

Headline specs vs. the whole Utility

n = 4,321–5,720

Engine Power

▲ 4W-305 higher · +5 hp (+2%)
4W-305305 hp
8550300 hp
Median Utility Tractor55 hp

4W-305 is in the 97th percentile; 8550 is in the 97th · 5,383 models

Engine Displacement

= Effectively tied
4W-305731 ci
8550731 ci
Median Utility Tractor183 ci

4W-305 is in the 96th percentile; 8550 is in the 96th · 5,580 models

Cylinders

= Effectively tied
4W-3056
85506
Median Utility Tractor4

4W-305 is in the 93rd percentile; 8550 is in the 93rd · 5,720 models

Forward Gears

= Effectively tied
4W-30520
855020
Median Utility Tractor12

4W-305 is in the 86th percentile; 8550 is in the 86th · 4,941 models

4W-305 (A)8550 (B)Median Utility Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers 4W-305Allis Chalmers 8550Difference
ManufacturerAllis ChalmersAllis ChalmersSame
Model4W-3058550—
CategoryUtilityUtilitySame

Engine

SpecAllis Chalmers 4W-305Allis Chalmers 8550Difference
ManufacturerAllis ChalmersAllis ChalmersSame
Model6120T6120TSame
Power Output305hp300hp▲ 4W-305+5 hp · +2%
Rated RPM2,300RPM2,500RPM▲ 8550+200 RPM · +9%
Cylinders66Same
Displacement731ci731ciSame
Bore5.3in5.3inSame
Stroke5.6in6.3in▲ 8550+0.7 in · +13%

Transmission

SpecAllis Chalmers 4W-305Allis Chalmers 8550Difference
TypeTwo-speed power shiftPartial Power Shift—

Dimensions & Weight

SpecAllis Chalmers 4W-305Allis Chalmers 8550Difference
Length285in285inSame
WidthNot recorded95.5in—
Height139in139inSame
Operating Weight27,100lb27,040lb▲ 4W-305+60 lb · <1%

Hydraulics

SpecAllis Chalmers 4W-305Allis Chalmers 8550Difference
System TypeClosed center load-sensingClosed Center—
Steering TypeHydraulic powerHydrostatic Power—

Power Take-off (PTO)

SpecAllis Chalmers 4W-305Allis Chalmers 8550Difference
TypeIndependentIndependentSame
Speed 11,000rpm1,000rpmSame

Hitch & Towing

SpecAllis Chalmers 4W-305Allis Chalmers 8550Difference
Hitch TypeThree-Point HitchThree-Point HitchSame
Hitch CategoryIII/IVIV/III—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecAllis Chalmers 4W-305Allis Chalmers 8550Difference
Chassis Type4x4 articulated 4WD4x4 Articulated 4WDSame
Drive Type4WD4WDSame
Steering TypeHydraulic powerHydrostatic Power—
Brake TypeNot recordedHydraulic Wet Discs—

Electrical

SpecAllis Chalmers 4W-305Allis Chalmers 8550Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers 4W-305Allis Chalmers 8550Difference
Coolant18gal18galSame

Operator Station

SpecAllis Chalmers 4W-305Allis Chalmers 8550Difference
TypeCabAcousta Cab II with heat and air-conditioning—

Category context

Both models against the field

Engine Power

median 55 hp
A · 97th percentile (305 hp)B · 97th percentile (300 hp)

Engine Displacement

median 183 ci
A · 96th percentile (731 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 · 97th percentile (27,100 lb)B · 96th percentile (27,040 lb)
A · 4W-305B · 8550Median Utility Tractor
Full spec pageAllis Chalmers 4W-305Full spec pageAllis Chalmers 8550