Head to head · Row Crop

Allis Chalmers WC (1938-1948) vs Yanmar YM1820

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 YM1820 Tractor
YanmarModel B

Yanmar YM1820

Sub-Compact

power
18 hp
displacement
78.1 ci
Cylinders
3
Forward gears
12
Full YM1820 specs
Allis ChalmersAllis Chalmers WC (1938-1948)
vs
YanmarYanmar YM1820

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

= Effectively tied
WC (1938-1948)18 hp
YM182018 hp
Median Row Crop Tractor138 hp

WC (1938-1948) is in the 1st percentile; YM1820 is in the 1st · 1,206 models

Engine Displacement

▲ WC (1938-1948) higher · +123 ci (+157%)
WC (1938-1948)201 ci
YM182078.1 ci
Median Row Crop Tractor391 ci

WC (1938-1948) is in the 8th percentile; YM1820 is in the 1st · 1,409 models

Cylinders

▲ WC (1938-1948) higher · +1 (+33%)
WC (1938-1948)4
YM18203
Median Row Crop Tractor6

WC (1938-1948) is in the 17th percentile; YM1820 is in the 2nd · 1,417 models

Forward Gears

▲ YM1820 higher · +8 (+200%)
WC (1938-1948)4
YM182012
Median Row Crop Tractor16

WC (1938-1948) is in the 4th percentile; YM1820 is in the 27th · 1,200 models

WC (1938-1948) (A)YM1820 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers WC (1938-1948)Yanmar YM1820Difference
ManufacturerAllis ChalmersYanmar—
ModelWC (1938-1948)YM1820—
CategoryRow CropSub-Compact—

Engine

SpecAllis Chalmers WC (1938-1948)Yanmar YM1820Difference
ManufacturerAllis-ChalmersYanmar—
ModelNot recorded3T80U-NB—
Power Output18hp18hpSame
Rated RPM1,300RPM2,400RPM▲ YM1820+1,100 RPM · +85%
Cylinders43▲ WC (1938-1948)+1 · +33%
Displacement201ci78.1ci▲ WC (1938-1948)+123 ci · +157%
Bore4in3.2in▲ WC (1938-1948)+0.9 in · +29%
Stroke4in3.4in▲ WC (1938-1948)+0.6 in · +18%

Transmission

SpecAllis Chalmers WC (1938-1948)Yanmar YM1820Difference
TypeNon-synchronized Gear TypePartial power shift, Creeper—

Dimensions & Weight

SpecAllis Chalmers WC (1938-1948)Yanmar YM1820Difference
Length136in104in▲ WC (1938-1948)+32 in · +31%
Width76in45in▲ WC (1938-1948)+31 in · +69%
Height63in70in▲ YM1820+7 in · +11%
Operating Weight3,792lb2,314lb▲ WC (1938-1948)+1,478 lb · +64%

Hydraulics

SpecAllis Chalmers WC (1938-1948)Yanmar YM1820Difference
Steering TypeManualNot recorded—

Power Take-off (PTO)

SpecAllis Chalmers WC (1938-1948)Yanmar YM1820Difference
TypeTransmissionNot recorded—
Speed 1535rpmNot recorded—

Chassis & Drive

SpecAllis Chalmers WC (1938-1948)Yanmar YM1820Difference
Chassis Type4x2 2WDNot recorded—
Drive Type2WDNot recorded—
Steering TypeManualNot recorded—
Brake TypeDifferential hand-operated mechanical drumNot recorded—

Electrical

SpecAllis Chalmers WC (1938-1948)Yanmar YM1820Difference
Starter TypeElectricNot recorded—

Capacities

SpecAllis Chalmers WC (1938-1948)Yanmar YM1820Difference
Coolant3.5galNot recorded—

Operator Station

SpecAllis Chalmers WC (1938-1948)Yanmar YM1820Difference
TypeOpen operator stationNot recorded—

Category context

Both models against the field

Engine Power

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

Engine Displacement

median 391 ci
A · 8th percentile (201 ci)B · 1st percentile (78.1 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 (2,314 lb)
A · WC (1938-1948)B · YM1820Median Row Crop Tractor
Full spec pageAllis Chalmers WC (1938-1948)Full spec pageYanmar YM1820