Head to head · Utility

Allis Chalmers 5020 vs Silver King R66

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Allis ChalmersModel A

Allis Chalmers 5020

Utility

power
25 hp
displacement
77.1 ci
Cylinders
2
Forward gears
8
Full 5020 specs
Image not recorded
Silver KingModel B

Silver King R66

Row Crop

power
24.5 hp
displacement
113 ci
Cylinders
4
Forward gears
4
Full R66 specs
Allis ChalmersAllis Chalmers 5020
vs
Silver KingSilver King R66

How they compare

Headline specs vs. the whole Utility

n = 3,933–5,720

Engine Power

▲ 5020 higher · +0.5 hp (+2%)
502025 hp
R6624.5 hp
Median Utility Tractor55 hp

5020 is in the 16th percentile; R66 is in the 15th · 5,383 models

Engine Displacement

▲ R66 higher · +35.9 ci (+47%)
502077.1 ci
R66113 ci
Median Utility Tractor183 ci

5020 is in the 11th percentile; R66 is in the 27th · 5,580 models

Cylinders

▲ R66 higher · +2 (+100%)
50202
R664
Median Utility Tractor4

5020 is in the 3rd percentile; R66 is in the 50th · 5,720 models

Forward Gears

▲ 5020 higher · +4 (+100%)
50208
R664
Median Utility Tractor12

5020 is in the 23rd percentile; R66 is in the 4th · 4,941 models

5020 (A)R66 (B)Median Utility Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers 5020Silver King R66Difference
ManufacturerAllis ChalmersSilver King—
Model5020R66—
CategoryUtilityRow Crop—

Engine

SpecAllis Chalmers 5020Silver King R66Difference
ManufacturerToyoshaHercules—
ModelS126Not recorded—
Power Output25hp24.5hp▲ 5020+0.5 hp · +2%
Rated RPM2,500RPM1,400RPM▲ 5020+1,100 RPM · +79%
Cylinders24▲ R66+2 · +100%
Displacement77.1ci113ci▲ R66+35.9 ci · +47%
Bore3.6in3in▲ 5020+0.6 in · +20%
Stroke3.7in4in▲ R66+0.3 in · +8%

Transmission

SpecAllis Chalmers 5020Silver King R66Difference
TypeSliding gearGear—

Dimensions & Weight

SpecAllis Chalmers 5020Silver King R66Difference
Length98.9in128in▲ R66+29.1 in · +29%
Width48in75in▲ R66+27 in · +56%
Height75.6in64in▲ 5020+11.6 in · +18%
Operating Weight2,060lb2,790lb▲ R66+730 lb · +35%

Hydraulics

SpecAllis Chalmers 5020Silver King R66Difference
System TypeOpen CenterNot recorded—
Steering TypeMechanicalManual—

Power Take-off (PTO)

SpecAllis Chalmers 5020Silver King R66Difference
TypeRear, Transmission PTONot recorded—
Speed 1540rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers 5020Silver King R66Difference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryINot recorded—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecAllis Chalmers 5020Silver King R66Difference
Chassis Type4x2 2WD3x2 2WD—
Drive Type2WD2WDSame
Steering TypeMechanicalManual—
Brake TypeMechanical drum and shoeNot recorded—

Electrical

SpecAllis Chalmers 5020Silver King R66Difference
Starter TypeElectricNot recorded—

Capacities

SpecAllis Chalmers 5020Silver King R66Difference
Coolant1.3galNot recorded—

Operator Station

SpecAllis Chalmers 5020Silver King R66Difference
TypeOpen with optional ROPSOpen—

Category context

Both models against the field

Engine Power

median 55 hp
A · 16th percentile (25 hp)B · 15th percentile (24.5 hp)

Engine Displacement

median 183 ci
A · 11th percentile (77.1 ci)B · 27th percentile (113 ci)

Cylinders

median 4
A · 3rd percentile (2)B · 50th percentile (4)

Forward Gears

median 12
A · 23rd percentile (8)B · 4th percentile (4)

Operating Weight

median 5,303 lb
A · 13th percentile (2,060 lb)B · 20th percentile (2,790 lb)
A · 5020B · R66Median Utility Tractor
Full spec pageAllis Chalmers 5020Full spec pageSilver King R66