Head to head · Row Crop

Allis Chalmers D21 Series I vs Wagner WA-4

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Allis ChalmersModel A

Allis Chalmers D21 Series I

Row Crop

power
103 hp
displacement
426 ci
Cylinders
6
Forward gears
8
Full D21 Series I specs
Wagner WA-4 Tractor
WagnerModel B

Wagner WA-4

Utility

power
102 hp
displacement
212 ci
Cylinders
4
Forward gears
8
Full WA-4 specs
Allis ChalmersAllis Chalmers D21 Series I
vs
WagnerWagner WA-4

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

▲ D21 Series I higher · +1 hp (<1%)
D21 Series I103 hp
WA-4102 hp
Median Row Crop Tractor138 hp

D21 Series I is in the 27th percentile; WA-4 is in the 26th · 1,206 models

Engine Displacement

▲ D21 Series I higher · +214 ci (+101%)
D21 Series I426 ci
WA-4212 ci
Median Row Crop Tractor391 ci

D21 Series I is in the 72nd percentile; WA-4 is in the 10th · 1,409 models

Cylinders

▲ D21 Series I higher · +2 (+50%)
D21 Series I6
WA-44
Median Row Crop Tractor6

D21 Series I is in the 50th percentile; WA-4 is in the 17th · 1,417 models

Forward Gears

= Effectively tied
D21 Series I8
WA-48
Median Row Crop Tractor16

D21 Series I is in the 16th percentile; WA-4 is in the 16th · 1,200 models

D21 Series I (A)WA-4 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IWagner WA-4Difference
ManufacturerAllis ChalmersWagner—
ModelD21 Series IWA-4—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IWagner WA-4Difference
ManufacturerAllis ChalmersGeneral Motors—
Model3400Apr-53—
Power Output103hp102hp▲ D21 Series I+1 hp · <1%
Rated RPM2,200RPM2,200RPMSame
Cylinders64▲ D21 Series I+2 · +50%
Displacement426ci212ci▲ D21 Series I+214 ci · +101%
Bore4.3in3.9in▲ D21 Series I+0.4 in · +10%
Stroke5in4.5in▲ D21 Series I+0.5 in · +11%

Transmission

SpecAllis Chalmers D21 Series IWagner WA-4Difference
TypeSliding gear with dry disc clutchManual—

Dimensions & Weight

SpecAllis Chalmers D21 Series IWagner WA-4Difference
Length161in186in▲ WA-4+25 in · +16%
Width91.6in78.5in▲ D21 Series I+13.1 in · +17%
Height107in85.5in▲ D21 Series I+21.5 in · +25%
Operating Weight9,500lb10,300lb▲ WA-4+800 lb · +8%

Hydraulics

SpecAllis Chalmers D21 Series IWagner WA-4Difference
Steering TypePowerHydraulic power—

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IWagner WA-4Difference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D21 Series IWagner WA-4Difference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIII/IICategory 3—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecAllis Chalmers D21 Series IWagner WA-4Difference
Chassis Type4x2 2WD4x4 articulated 4WD—
Drive Type2WD4WD—
Steering TypePowerHydraulic power—
Brake TypeBand actuated discNot recorded—

Electrical

SpecAllis Chalmers D21 Series IWagner WA-4Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IWagner WA-4Difference
Coolant5.3gal5.8gal▲ WA-4+0.5 gal · +9%

Operator Station

SpecAllis Chalmers D21 Series IWagner WA-4Difference
TypeOpenNot recorded—

Category context

Both models against the field

Engine Power

median 138 hp
A · 27th percentile (103 hp)B · 26th percentile (102 hp)

Engine Displacement

median 391 ci
A · 72nd percentile (426 ci)B · 10th percentile (212 ci)

Cylinders

median 6
A · 50th percentile (6)B · 17th percentile (4)

Forward Gears

median 16
A · 16th percentile (8)B · 16th percentile (8)

Operating Weight

median 12,307 lb
A · 28th percentile (9,500 lb)B · 34th percentile (10,300 lb)
A · D21 Series IB · WA-4Median Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IFull spec pageWagner WA-4