Head to head · Row Crop

Allis Chalmers D21 Series I vs SAME Silver 105

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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
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SAMEModel B

SAME Silver 105

Utility

power
103 hp
displacement
366 ci
Cylinders
6
Forward gears
60
Full Silver 105 specs
Allis ChalmersAllis Chalmers D21 Series I
vs
SAMESAME Silver 105

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

= Effectively tied
D21 Series I103 hp
Silver 105103 hp
Median Row Crop Tractor138 hp

D21 Series I is in the 27th percentile; Silver 105 is in the 27th · 1,206 models

Engine Displacement

▲ D21 Series I higher · +60 ci (+16%)
D21 Series I426 ci
Silver 105366 ci
Median Row Crop Tractor391 ci

D21 Series I is in the 72nd percentile; Silver 105 is in the 45th · 1,409 models

Cylinders

= Effectively tied
D21 Series I6
Silver 1056
Median Row Crop Tractor6

D21 Series I is in the 50th percentile; Silver 105 is in the 50th · 1,417 models

Forward Gears

▲ Silver 105 higher · +52 (+650%)
D21 Series I8
Silver 10560
Median Row Crop Tractor16

D21 Series I is in the 16th percentile; Silver 105 is in the 99th · 1,200 models

D21 Series I (A)Silver 105 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series ISAME Silver 105Difference
ManufacturerAllis ChalmersSAME—
ModelD21 Series ISilver 105—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series ISAME Silver 105Difference
ManufacturerAllis ChalmersSAME—
Model34001000.6 WA—
Power Output103hp103hpSame
Rated RPM2,200RPM2,300RPM▲ Silver 105+100 RPM · +5%
Cylinders66Same
Displacement426ci366ci▲ D21 Series I+60 ci · +16%
Bore4.3in4.1in▲ D21 Series I+0.2 in · +5%
Stroke5in4.6in▲ D21 Series I+0.5 in · +11%

Transmission

SpecAllis Chalmers D21 Series ISAME Silver 105Difference
TypeSliding gear with dry disc clutchPartial power shift—

Dimensions & Weight

SpecAllis Chalmers D21 Series ISAME Silver 105Difference
Length161in150in▲ D21 Series I+11 in · +7%
Width91.6in83.5in▲ D21 Series I+8.1 in · +10%
Height107in106in▲ D21 Series I+1 in · <1%
Operating Weight9,500lb9,524lb▲ Silver 105+24 lb · <1%

Hydraulics

SpecAllis Chalmers D21 Series ISAME Silver 105Difference
Steering TypePowerPowerSame

Power Take-off (PTO)

SpecAllis Chalmers D21 Series ISAME Silver 105Difference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D21 Series ISAME Silver 105Difference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIII/IIIII—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecAllis Chalmers D21 Series ISAME Silver 105Difference
Chassis Type4x2 2WD4x4 MFWD 4WD—
Drive Type2WD4WD—
Steering TypePowerPowerSame
Brake TypeBand actuated discNot recorded—

Electrical

SpecAllis Chalmers D21 Series ISAME Silver 105Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series ISAME Silver 105Difference
Coolant5.3galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series ISAME Silver 105Difference
TypeOpenNot recorded—

Category context

Both models against the field

Engine Power

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

Engine Displacement

median 391 ci
A · 72nd percentile (426 ci)B · 45th percentile (366 ci)

Cylinders

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

Forward Gears

median 16
A · 16th percentile (8)B · 99th percentile (60)

Operating Weight

median 12,307 lb
A · 28th percentile (9,500 lb)B · 28th percentile (9,524 lb)
A · D21 Series IB · Silver 105Median Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IFull spec pageSAME Silver 105