Head to head · Row Crop

Allis Chalmers D21 Series I vs Shibaura SF1040T

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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
Shibaura SF1040T Tractor
ShibauraModel B

Shibaura SF1040T

Utility

power
105 hp
displacement
278 ci
Cylinders
4
Forward gears
16
Full SF1040T specs
Allis ChalmersAllis Chalmers D21 Series I
vs
ShibauraShibaura SF1040T

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

▲ SF1040T higher · +2 hp (+2%)
D21 Series I103 hp
SF1040T105 hp
Median Row Crop Tractor138 hp

D21 Series I is in the 27th percentile; SF1040T is in the 28th · 1,206 models

Engine Displacement

▲ D21 Series I higher · +148 ci (+53%)
D21 Series I426 ci
SF1040T278 ci
Median Row Crop Tractor391 ci

D21 Series I is in the 72nd percentile; SF1040T is in the 27th · 1,409 models

Cylinders

▲ D21 Series I higher · +2 (+50%)
D21 Series I6
SF1040T4
Median Row Crop Tractor6

D21 Series I is in the 50th percentile; SF1040T is in the 17th · 1,417 models

Forward Gears

▲ SF1040T higher · +8 (+100%)
D21 Series I8
SF1040T16
Median Row Crop Tractor16

D21 Series I is in the 16th percentile; SF1040T is in the 50th · 1,200 models

D21 Series I (A)SF1040T (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IShibaura SF1040TDifference
ManufacturerAllis ChalmersShibaura—
ModelD21 Series ISF1040T—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IShibaura SF1040TDifference
ManufacturerAllis ChalmersShibaura—
Model3400LER1104T—
Power Output103hp105hp▲ SF1040T+2 hp · +2%
Rated RPM2,200RPM2,200RPMSame
Cylinders64▲ D21 Series I+2 · +50%
Displacement426ci278ci▲ D21 Series I+148 ci · +53%
Bore4.3in4.3inSame
Stroke5in4.7in▲ D21 Series I+0.3 in · +6%

Transmission

SpecAllis Chalmers D21 Series IShibaura SF1040TDifference
TypeSliding gear with dry disc clutchConstant mesh—

Dimensions & Weight

SpecAllis Chalmers D21 Series IShibaura SF1040TDifference
Length161in161inSame
Width91.6in74in▲ D21 Series I+17.6 in · +24%
Height107in108in▲ SF1040T+1 in · <1%
Operating Weight9,500lb7,915lb▲ D21 Series I+1,585 lb · +20%

Hydraulics

SpecAllis Chalmers D21 Series IShibaura SF1040TDifference
System TypeNot recordedOpen center—
Steering TypePowerHydrostatic power—

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IShibaura SF1040TDifference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Tires

SpecAllis Chalmers D21 Series IShibaura SF1040TDifference
Front Tire SizeNot recorded12.4-24—
Rear Tire SizeNot recorded18.4-34—

Hitch & Towing

SpecAllis Chalmers D21 Series IShibaura SF1040TDifference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIII/IIII—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecAllis Chalmers D21 Series IShibaura SF1040TDifference
Chassis Type4x2 2WD4x4 MFWD 4WD—
Drive Type2WD4WD—
Steering TypePowerHydrostatic power—
Brake TypeBand actuated discMechanical wet disc—

Electrical

SpecAllis Chalmers D21 Series IShibaura SF1040TDifference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IShibaura SF1040TDifference
Coolant5.3galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series IShibaura SF1040TDifference
TypeOpenOpen operator station or two-post ROPS—

Category context

Both models against the field

Engine Power

median 138 hp
A · 27th percentile (103 hp)B · 28th percentile (105 hp)

Engine Displacement

median 391 ci
A · 72nd percentile (426 ci)B · 27th percentile (278 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 · 20th percentile (7,915 lb)
A · D21 Series IB · SF1040TMedian Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IFull spec pageShibaura SF1040T