Head to head · Utility

Allis Chalmers 7580 vs Muir-Hill 161

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Allis ChalmersModel A

Allis Chalmers 7580

Utility

power
186 hp
displacement
426 ci
Cylinders
6
Forward gears
20
Full 7580 specs
Image not recorded
Muir-HillModel B

Muir-Hill 161

Utility

power
185 hp
displacement
510 ci
Cylinders
8
Forward gears
10
Full 161 specs
Allis ChalmersAllis Chalmers 7580
vs
Muir-HillMuir-Hill 161

How they compare

Headline specs vs. the whole Utility

n = 3,933–5,720

Engine Power

▲ 7580 higher · +1 hp (<1%)
7580186 hp
161185 hp
Median Utility Tractor55 hp

7580 is in the 94th percentile; 161 is in the 94th · 5,383 models

Engine Displacement

▲ 161 higher · +84 ci (+20%)
7580426 ci
161510 ci
Median Utility Tractor183 ci

7580 is in the 92nd percentile; 161 is in the 94th · 5,580 models

Cylinders

▲ 161 higher · +2 (+33%)
75806
1618
Median Utility Tractor4

7580 is in the 93rd percentile; 161 is in the 99th · 5,720 models

Forward Gears

▲ 7580 higher · +10 (+100%)
758020
16110
Median Utility Tractor12

7580 is in the 86th percentile; 161 is in the 39th · 4,941 models

7580 (A)161 (B)Median Utility Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers 7580Muir-Hill 161Difference
ManufacturerAllis ChalmersMuir-Hill—
Model7580161—
CategoryUtilityUtilitySame

Engine

SpecAllis Chalmers 7580Muir-Hill 161Difference
ManufacturerAllis ChalmersPerkins—
Model3750 Mark IIV8.510—
Power Output186hp185hp▲ 7580+1 hp · <1%
Rated RPM2,550RPM2,500RPM▲ 7580+50 RPM · +2%
Cylinders68▲ 161+2 · +33%
Displacement426ci510ci▲ 161+84 ci · +20%
Bore4.3in4.3inSame
Stroke5in4.5in▲ 7580+0.5 in · +11%

Transmission

SpecAllis Chalmers 7580Muir-Hill 161Difference
TypePartial power shiftGear—

Dimensions & Weight

SpecAllis Chalmers 7580Muir-Hill 161Difference
Length225in165in▲ 7580+60 in · +36%
Width95.5in97.5in▲ 161+2 in · +2%
Height150in114in▲ 7580+36 in · +32%
Operating Weight25,000lb12,000lb▲ 7580+13,000 lb · +108%

Hydraulics

SpecAllis Chalmers 7580Muir-Hill 161Difference
System TypeClosed centerOpen Center—
Steering TypeHydrostatic powerPower—

Power Take-off (PTO)

SpecAllis Chalmers 7580Muir-Hill 161Difference
TypeIndependentNot recorded—
Speed 1540rpmNot recorded—

Tires

SpecAllis Chalmers 7580Muir-Hill 161Difference
Front Tire Size23.1-30Not recorded—
Rear Tire Size23.1-30Not recorded—

Hitch & Towing

SpecAllis Chalmers 7580Muir-Hill 161Difference
Hitch TypeIIIThree-Point Hitch—
Hitch CategoryCategory 3III—
Hitch PositionRearRearSame

Chassis & Drive

SpecAllis Chalmers 7580Muir-Hill 161Difference
Chassis Type4x4 articulated 4WD4x4—
Drive Type4WD4WDSame
Steering TypeHydrostatic powerPower—
Brake TypeHydraulic wet discsNot recorded—

Electrical

SpecAllis Chalmers 7580Muir-Hill 161Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers 7580Muir-Hill 161Difference
Coolant9.5galNot recorded—

Operator Station

SpecAllis Chalmers 7580Muir-Hill 161Difference
TypeAcousta cabNot recorded—

Category context

Both models against the field

Engine Power

median 55 hp
A · 94th percentile (186 hp)B · 94th percentile (185 hp)

Engine Displacement

median 183 ci
A · 92nd percentile (426 ci)B · 94th percentile (510 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 (25,000 lb)B · 90th percentile (12,000 lb)
A · 7580B · 161Median Utility Tractor
Full spec pageAllis Chalmers 7580Full spec pageMuir-Hill 161