Head to head · Utility

Allis Chalmers 7580 vs JCB Fastrac 185

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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
JCBModel B

JCB Fastrac 185

Utility

power
188 hp
displacement
359 ci
Cylinders
6
Forward gears
36
Full Fastrac 185 specs
Allis ChalmersAllis Chalmers 7580
vs
JCBJCB Fastrac 185

How they compare

Headline specs vs. the whole Utility

n = 3,933–5,720

Engine Power

▲ Fastrac 185 higher · +2 hp (+1%)
7580186 hp
Fastrac 185188 hp
Median Utility Tractor55 hp

7580 is in the 94th percentile; Fastrac 185 is in the 94th · 5,383 models

Engine Displacement

▲ 7580 higher · +67 ci (+19%)
7580426 ci
Fastrac 185359 ci
Median Utility Tractor183 ci

7580 is in the 92nd percentile; Fastrac 185 is in the 87th · 5,580 models

Cylinders

= Effectively tied
75806
Fastrac 1856
Median Utility Tractor4

7580 is in the 93rd percentile; Fastrac 185 is in the 93rd · 5,720 models

Forward Gears

▲ Fastrac 185 higher · +16 (+80%)
758020
Fastrac 18536
Median Utility Tractor12

7580 is in the 86th percentile; Fastrac 185 is in the 99th · 4,941 models

7580 (A)Fastrac 185 (B)Median Utility Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers 7580JCB Fastrac 185Difference
ManufacturerAllis ChalmersJCB—
Model7580Fastrac 185—
CategoryUtilityUtilitySame

Engine

SpecAllis Chalmers 7580JCB Fastrac 185Difference
ManufacturerAllis ChalmersCummins—
Model3750 Mark II6 BTA—
Power Output186hp188hp▲ Fastrac 185+2 hp · +1%
Rated RPM2,550RPM2,400RPM▲ 7580+150 RPM · +6%
Cylinders66Same
Displacement426ci359ci▲ 7580+67 ci · +19%
Bore4.3in4in▲ 7580+0.3 in · +7%
Stroke5in4.7in▲ 7580+0.3 in · +6%

Transmission

SpecAllis Chalmers 7580JCB Fastrac 185Difference
TypePartial power shiftSynchromesh—

Dimensions & Weight

SpecAllis Chalmers 7580JCB Fastrac 185Difference
Length225in227in▲ Fastrac 185+2 in · <1%
Width95.5in93in▲ 7580+2.5 in · +3%
Height150in117in▲ 7580+33 in · +28%
Operating Weight25,000lb14,332lb▲ 7580+10,668 lb · +74%

Hydraulics

SpecAllis Chalmers 7580JCB Fastrac 185Difference
System TypeClosed centerNot recorded—
Steering TypeHydrostatic powerPower assist—

Power Take-off (PTO)

SpecAllis Chalmers 7580JCB Fastrac 185Difference
TypeIndependentIndependentSame
Speed 1540rpm540rpmSame
Speed 2Not recorded1,000rpm—

Tires

SpecAllis Chalmers 7580JCB Fastrac 185Difference
Front Tire Size23.1-30Not recorded—
Rear Tire Size23.1-30Not recorded—

Hitch & Towing

SpecAllis Chalmers 7580JCB Fastrac 185Difference
Hitch TypeIIIIII/IIIN—
Hitch CategoryCategory 3II and III/IIIN—
Hitch PositionRearNot recorded—
Hitch CapacityNot recorded15,435lb—

Chassis & Drive

SpecAllis Chalmers 7580JCB Fastrac 185Difference
Chassis Type4x4 articulated 4WD4x4 4WD—
Drive Type4WD4WDSame
Steering TypeHydrostatic powerPower assist—
Brake TypeHydraulic wet discsPneumatic dry disc—

Electrical

SpecAllis Chalmers 7580JCB Fastrac 185Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers 7580JCB Fastrac 185Difference
Coolant9.5galNot recorded—

Operator Station

SpecAllis Chalmers 7580JCB Fastrac 185Difference
TypeAcousta cabCab with air conditioning—

Category context

Both models against the field

Engine Power

median 55 hp
A · 94th percentile (186 hp)B · 94th percentile (188 hp)

Engine Displacement

median 183 ci
A · 92nd percentile (426 ci)B · 87th percentile (359 ci)

Cylinders

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

Forward Gears

median 12
A · 86th percentile (20)B · 99th percentile (36)

Operating Weight

median 5,303 lb
A · 96th percentile (25,000 lb)B · 93rd percentile (14,332 lb)
A · 7580B · Fastrac 185Median Utility Tractor
Full spec pageAllis Chalmers 7580Full spec pageJCB Fastrac 185