Head to head · Row Crop

Allis Chalmers D21 Series I vs McCormick Intl C100

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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
Image not recorded
McCormick IntlModel B

McCormick Intl C100

Utility

power
102 hp
displacement
244 ci
Cylinders
4
Forward gears
16
Full C100 specs
Allis ChalmersAllis Chalmers D21 Series I
vs
McCormick IntlMcCormick Intl C100

How they compare

Headline specs vs. the whole Row Crop

n = 1,200–1,417

Engine Power

▲ D21 Series I higher · +1 hp (<1%)
D21 Series I103 hp
C100102 hp
Median Row Crop Tractor138 hp

D21 Series I is in the 27th percentile; C100 is in the 26th · 1,206 models

Engine Displacement

▲ D21 Series I higher · +182 ci (+75%)
D21 Series I426 ci
C100244 ci
Median Row Crop Tractor391 ci

D21 Series I is in the 72nd percentile; C100 is in the 15th · 1,409 models

Cylinders

▲ D21 Series I higher · +2 (+50%)
D21 Series I6
C1004
Median Row Crop Tractor6

D21 Series I is in the 50th percentile; C100 is in the 17th · 1,417 models

Forward Gears

▲ C100 higher · +8 (+100%)
D21 Series I8
C10016
Median Row Crop Tractor16

D21 Series I is in the 16th percentile; C100 is in the 50th · 1,200 models

D21 Series I (A)C100 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IMcCormick Intl C100Difference
ManufacturerAllis ChalmersMcCormick Intl—
ModelD21 Series IC100—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IMcCormick Intl C100Difference
ManufacturerAllis ChalmersPerkins—
Model3400Not recorded—
Power Output103hp102hp▲ D21 Series I+1 hp · <1%
Rated RPM2,200RPM2,200RPMSame
Cylinders64▲ D21 Series I+2 · +50%
Displacement426ci244ci▲ D21 Series I+182 ci · +75%
Bore4.3in3.9in▲ D21 Series I+0.4 in · +10%
Stroke5in5inSame

Transmission

SpecAllis Chalmers D21 Series IMcCormick Intl C100Difference
TypeSliding gear with dry disc clutchSyncromesh/Shuttle/Two-speed power shift—

Dimensions & Weight

SpecAllis Chalmers D21 Series IMcCormick Intl C100Difference
Length161inNot recorded—
Width91.6inNot recorded—
Height107inNot recorded—
Operating Weight9,500lb5,964lb▲ D21 Series I+3,536 lb · +59%

Hydraulics

SpecAllis Chalmers D21 Series IMcCormick Intl C100Difference
System TypeNot recordedOpen center—
Steering TypePowerPowerSame

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IMcCormick Intl C100Difference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D21 Series IMcCormick Intl C100Difference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIII/IIII—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecAllis Chalmers D21 Series IMcCormick Intl C100Difference
Chassis Type4x2 2WD4x2 2WDSame
Drive Type2WD2WDSame
Steering TypePowerPowerSame
Brake TypeBand actuated discNot recorded—

Electrical

SpecAllis Chalmers D21 Series IMcCormick Intl C100Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IMcCormick Intl C100Difference
Coolant5.3galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series IMcCormick Intl C100Difference
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 · 15th percentile (244 ci)

Cylinders

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

Forward Gears

median 16
A · 16th percentile (8)B · 50th percentile (16)

Operating Weight

median 12,307 lb
A · 28th percentile (9,500 lb)B · 12th percentile (5,964 lb)
A · D21 Series IB · C100Median Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IFull spec pageMcCormick Intl C100