Head to head · Row Crop

Allis Chalmers D21 Series I vs Iseki T10520

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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
IsekiModel B

Iseki T10520

Agricultural

power
104 hp
displacement
353 ci
Cylinders
6
Forward gears
24
Full T10520 specs
Allis ChalmersAllis Chalmers D21 Series I
vs
IsekiIseki T10520

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

▲ T10520 higher · +1 hp (<1%)
D21 Series I103 hp
T10520104 hp
Median Row Crop Tractor138 hp

D21 Series I is in the 27th percentile; T10520 is in the 28th · 1,206 models

Engine Displacement

▲ D21 Series I higher · +73 ci (+21%)
D21 Series I426 ci
T10520353 ci
Median Row Crop Tractor391 ci

D21 Series I is in the 72nd percentile; T10520 is in the 38th · 1,409 models

Cylinders

= Effectively tied
D21 Series I6
T105206
Median Row Crop Tractor6

D21 Series I is in the 50th percentile; T10520 is in the 50th · 1,417 models

Forward Gears

▲ T10520 higher · +16 (+200%)
D21 Series I8
T1052024
Median Row Crop Tractor16

D21 Series I is in the 16th percentile; T10520 is in the 81st · 1,200 models

D21 Series I (A)T10520 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IIseki T10520Difference
ManufacturerAllis ChalmersIseki—
ModelD21 Series IT10520—
CategoryRow CropAgricultural—

Engine

SpecAllis Chalmers D21 Series IIseki T10520Difference
ManufacturerAllis ChalmersIsuzu—
Model34006BD1—
Power Output103hp104hp▲ T10520+1 hp · <1%
Rated RPM2,200RPM2,200RPMSame
Cylinders66Same
Displacement426ci353ci▲ D21 Series I+73 ci · +21%
Bore4.3in4in▲ D21 Series I+0.3 in · +7%
Stroke5in4.7in▲ D21 Series I+0.3 in · +6%

Transmission

SpecAllis Chalmers D21 Series IIseki T10520Difference
TypeSliding gear with dry disc clutchSyncromesh, Creeper—

Dimensions & Weight

SpecAllis Chalmers D21 Series IIseki T10520Difference
Length161in166in▲ T10520+5 in · +3%
Width91.6in80.7in▲ D21 Series I+10.9 in · +14%
Height107in105in▲ D21 Series I+2 in · +2%
Operating Weight9,500lb8,466lb▲ D21 Series I+1,034 lb · +12%

Hydraulics

SpecAllis Chalmers D21 Series IIseki T10520Difference
Steering TypePowerNot recorded—

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IIseki T10520Difference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D21 Series IIseki T10520Difference
Hitch TypeThree-Point HitchCategory II—
Hitch CategoryIII/IICategory 3—
Hitch PositionRearRearSame

Chassis & Drive

SpecAllis Chalmers D21 Series IIseki T10520Difference
Chassis Type4x2 2WDNot recorded—
Drive Type2WDNot recorded—
Steering TypePowerNot recorded—
Brake TypeBand actuated discNot recorded—

Electrical

SpecAllis Chalmers D21 Series IIseki T10520Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IIseki T10520Difference
Coolant5.3galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series IIseki T10520Difference
TypeOpenNot recorded—

Category context

Both models against the field

Engine Power

median 138 hp
A · 27th percentile (103 hp)B · 28th percentile (104 hp)

Engine Displacement

median 391 ci
A · 72nd percentile (426 ci)B · 38th percentile (353 ci)

Cylinders

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

Forward Gears

median 16
A · 16th percentile (8)B · 81st percentile (24)

Operating Weight

median 12,307 lb
A · 28th percentile (9,500 lb)B · 23rd percentile (8,466 lb)
A · D21 Series IB · T10520Median Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IFull spec pageIseki T10520