Head to head · Row Crop

Allis Chalmers D21 Series I vs Kubota M105S

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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
Kubota M105S Tractor
KubotaModel B

Kubota M105S

Utility

power
105 hp
displacement
230 ci
Cylinders
4
Forward gears
32
Full M105S specs
Allis ChalmersAllis Chalmers D21 Series I
vs
KubotaKubota M105S

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

▲ M105S higher · +2 hp (+2%)
D21 Series I103 hp
M105S105 hp
Median Row Crop Tractor138 hp

D21 Series I is in the 27th percentile; M105S is in the 28th · 1,206 models

Engine Displacement

▲ D21 Series I higher · +196 ci (+85%)
D21 Series I426 ci
M105S230 ci
Median Row Crop Tractor391 ci

D21 Series I is in the 72nd percentile; M105S is in the 12th · 1,409 models

Cylinders

▲ D21 Series I higher · +2 (+50%)
D21 Series I6
M105S4
Median Row Crop Tractor6

D21 Series I is in the 50th percentile; M105S is in the 17th · 1,417 models

Forward Gears

▲ M105S higher · +24 (+300%)
D21 Series I8
M105S32
Median Row Crop Tractor16

D21 Series I is in the 16th percentile; M105S is in the 91st · 1,200 models

D21 Series I (A)M105S (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IKubota M105SDifference
ManufacturerAllis ChalmersKubota—
ModelD21 Series IM105S—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IKubota M105SDifference
ManufacturerAllis ChalmersKubota—
Model3400V3800-DI-TI—
Power Output103hp105hp▲ M105S+2 hp · +2%
Rated RPM2,200RPM2,600RPM▲ M105S+400 RPM · +18%
Cylinders64▲ D21 Series I+2 · +50%
Displacement426ci230ci▲ D21 Series I+196 ci · +85%
Bore4.3in3.9in▲ D21 Series I+0.4 in · +10%
Stroke5in4.7in▲ D21 Series I+0.3 in · +6%

Transmission

SpecAllis Chalmers D21 Series IKubota M105SDifference
TypeSliding gear with dry disc clutchPartial power shift, Partially synchronized—

Dimensions & Weight

SpecAllis Chalmers D21 Series IKubota M105SDifference
Length161in162in▲ M105S+1 in · <1%
Width91.6in78.7in▲ D21 Series I+12.9 in · +16%
Height107in106in▲ D21 Series I+1 in · <1%
Operating Weight9,500lb6,305lb▲ D21 Series I+3,195 lb · +51%

Hydraulics

SpecAllis Chalmers D21 Series IKubota M105SDifference
System TypeNot recordedOpen center—
Steering TypePowerHydrostatic power—

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IKubota M105SDifference
TypeIndependentIndependentSame
Speed 11,000rpm540rpm▲ D21 Series I+460 rpm · +85%
Speed 2Not recorded1,000rpm—

Hitch & Towing

SpecAllis Chalmers D21 Series IKubota M105SDifference
Hitch TypeThree-Point HitchThree-Point HitchSame
Hitch CategoryIII/IIII—
Hitch PositionRearRearSame
Hitch CapacityNot recorded4,630lb—

Chassis & Drive

SpecAllis Chalmers D21 Series IKubota M105SDifference
Chassis Type4x2 2WD4x4 MFWD 4WD—
Drive Type2WDMFWD 4WD—
Steering TypePowerHydrostatic power—
Brake TypeBand actuated discHydraulic wet disc—

Electrical

SpecAllis Chalmers D21 Series IKubota M105SDifference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IKubota M105SDifference
Coolant5.3galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series IKubota M105SDifference
TypeOpenROPS—

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 · 12th percentile (230 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 · 13th percentile (6,305 lb)
A · D21 Series IB · M105SMedian Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IFull spec pageKubota M105S