Head to head · Row Crop

Allis Chalmers WC (1938-1948) vs Yanmar AF-18

Image not recorded
Allis ChalmersModel A

Allis Chalmers WC (1938-1948)

Row Crop

power
18 hp
displacement
201 ci
Cylinders
4
Forward gears
4
Full WC (1938-1948) specs
Yanmar AF-18 Tractor
YanmarModel B

Yanmar AF-18

Utility

power
17.8 hp
displacement
61.4 ci
Cylinders
3
Forward gears
12
Full AF-18 specs
Allis ChalmersAllis Chalmers WC (1938-1948)
vs
YanmarYanmar AF-18

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

▲ WC (1938-1948) higher · +0.2 hp (+1%)
WC (1938-1948)18 hp
AF-1817.8 hp
Median Row Crop Tractor138 hp

WC (1938-1948) is in the 1st percentile; AF-18 is in the 1st · 1,206 models

Engine Displacement

▲ WC (1938-1948) higher · +140 ci (+227%)
WC (1938-1948)201 ci
AF-1861.4 ci
Median Row Crop Tractor391 ci

WC (1938-1948) is in the 8th percentile; AF-18 is in the 1st · 1,409 models

Cylinders

▲ WC (1938-1948) higher · +1 (+33%)
WC (1938-1948)4
AF-183
Median Row Crop Tractor6

WC (1938-1948) is in the 17th percentile; AF-18 is in the 2nd · 1,417 models

Forward Gears

▲ AF-18 higher · +8 (+200%)
WC (1938-1948)4
AF-1812
Median Row Crop Tractor16

WC (1938-1948) is in the 4th percentile; AF-18 is in the 27th · 1,200 models

WC (1938-1948) (A)AF-18 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers WC (1938-1948)Yanmar AF-18Difference
ManufacturerAllis ChalmersYanmar—
ModelWC (1938-1948)AF-18—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers WC (1938-1948)Yanmar AF-18Difference
ManufacturerAllis-ChalmersYanmar—
ModelNot recorded3TNE74—
Power Output18hp17.8hp▲ WC (1938-1948)+0.2 hp · +1%
Rated RPM1,300RPM2,500RPM▲ AF-18+1,200 RPM · +92%
Cylinders43▲ WC (1938-1948)+1 · +33%
Displacement201ci61.4ci▲ WC (1938-1948)+140 ci · +227%
Bore4in2.9in▲ WC (1938-1948)+1.1 in · +38%
Stroke4in3.1in▲ WC (1938-1948)+0.9 in · +29%

Transmission

SpecAllis Chalmers WC (1938-1948)Yanmar AF-18Difference
TypeNon-synchronized Gear Typecreeper—

Dimensions & Weight

SpecAllis Chalmers WC (1938-1948)Yanmar AF-18Difference
Length136in103in▲ WC (1938-1948)+33 in · +32%
Width76in43.3in▲ WC (1938-1948)+32.7 in · +76%
Height63in74.2in▲ AF-18+11.2 in · +18%
Operating Weight3,792lb1,653lb▲ WC (1938-1948)+2,139 lb · +129%

Hydraulics

SpecAllis Chalmers WC (1938-1948)Yanmar AF-18Difference
Steering TypeManualNot recorded—

Power Take-off (PTO)

SpecAllis Chalmers WC (1938-1948)Yanmar AF-18Difference
TypeTransmissionNot recorded—
Speed 1535rpmNot recorded—

Chassis & Drive

SpecAllis Chalmers WC (1938-1948)Yanmar AF-18Difference
Chassis Type4x2 2WD4x4 MFWD 4WD—
Drive Type2WD4WD—
Steering TypeManualNot recorded—
Brake TypeDifferential hand-operated mechanical drumNot recorded—

Electrical

SpecAllis Chalmers WC (1938-1948)Yanmar AF-18Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers WC (1938-1948)Yanmar AF-18Difference
Coolant3.5galNot recorded—

Operator Station

SpecAllis Chalmers WC (1938-1948)Yanmar AF-18Difference
TypeOpen operator stationNot recorded—

Category context

Both models against the field

Engine Power

median 138 hp
A · 1st percentile (18 hp)B · 1st percentile (17.8 hp)

Engine Displacement

median 391 ci
A · 8th percentile (201 ci)B · 1st percentile (61.4 ci)

Cylinders

median 6
A · 17th percentile (4)B · 2nd percentile (3)

Forward Gears

median 16
A · 4th percentile (4)B · 27th percentile (12)

Operating Weight

median 12,307 lb
A · 4th percentile (3,792 lb)B · 1st percentile (1,653 lb)
A · WC (1938-1948)B · AF-18Median Row Crop Tractor
Full spec pageAllis Chalmers WC (1938-1948)Full spec pageYanmar AF-18