Head to head · Row Crop

Allis Chalmers D21 Series I vs McCormick Intl X50.40

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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 X50.40

Utility

power
102 hp
displacement
208 ci
Cylinders
4
Forward gears
32
Full X50.40 specs
Allis ChalmersAllis Chalmers D21 Series I
vs
McCormick IntlMcCormick Intl X50.40

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
X50.40102 hp
Median Row Crop Tractor138 hp

D21 Series I is in the 27th percentile; X50.40 is in the 26th · 1,206 models

Engine Displacement

▲ D21 Series I higher · +218 ci (+105%)
D21 Series I426 ci
X50.40208 ci
Median Row Crop Tractor391 ci

D21 Series I is in the 72nd percentile; X50.40 is in the 10th · 1,409 models

Cylinders

▲ D21 Series I higher · +2 (+50%)
D21 Series I6
X50.404
Median Row Crop Tractor6

D21 Series I is in the 50th percentile; X50.40 is in the 17th · 1,417 models

Forward Gears

▲ X50.40 higher · +24 (+300%)
D21 Series I8
X50.4032
Median Row Crop Tractor16

D21 Series I is in the 16th percentile; X50.40 is in the 91st · 1,200 models

D21 Series I (A)X50.40 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IMcCormick Intl X50.40Difference
ManufacturerAllis ChalmersMcCormick Intl—
ModelD21 Series IX50.40—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IMcCormick Intl X50.40Difference
ManufacturerAllis ChalmersPerkins—
Model3400854E-E34TA—
Power Output103hp102hp▲ D21 Series I+1 hp · <1%
Rated RPM2,200RPM2,200RPMSame
Cylinders64▲ D21 Series I+2 · +50%
Displacement426ci208ci▲ D21 Series I+218 ci · +105%
Bore4.3in3.9in▲ D21 Series I+0.4 in · +10%
Stroke5in4.3in▲ D21 Series I+0.7 in · +16%

Transmission

SpecAllis Chalmers D21 Series IMcCormick Intl X50.40Difference
TypeSliding gear with dry disc clutchMechanical shuttle, power shuttle, three-speed power shift—

Dimensions & Weight

SpecAllis Chalmers D21 Series IMcCormick Intl X50.40Difference
Length161in164in▲ X50.40+3 in · +2%
Width91.6in83in▲ D21 Series I+8.6 in · +10%
Height107inNot recorded—
Operating Weight9,500lb8,030lb▲ D21 Series I+1,470 lb · +18%

Hydraulics

SpecAllis Chalmers D21 Series IMcCormick Intl X50.40Difference
Steering TypePowerHydrostatic power—

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IMcCormick Intl X50.40Difference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D21 Series IMcCormick Intl X50.40Difference
Hitch TypeThree-Point HitchThree-point hitchSame
Hitch CategoryIII/IIII—
Hitch PositionRearRearSame

Chassis & Drive

SpecAllis Chalmers D21 Series IMcCormick Intl X50.40Difference
Chassis Type4x2 2WD4x2 2WDSame
Drive Type2WD2WDSame
Steering TypePowerHydrostatic power—
Brake TypeBand actuated discNot recorded—

Electrical

SpecAllis Chalmers D21 Series IMcCormick Intl X50.40Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IMcCormick Intl X50.40Difference
Coolant5.3galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series IMcCormick Intl X50.40Difference
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 (208 ci)

Cylinders

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

Forward Gears

median 16
A · 16th percentile (8)B · 91st percentile (32)

Operating Weight

median 12,307 lb
A · 28th percentile (9,500 lb)B · 20th percentile (8,030 lb)
A · D21 Series IB · X50.40Median Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IFull spec pageMcCormick Intl X50.40