Head to head · Row Crop

Allis Chalmers D21 Series II vs SAME Rubin 120

Allis ChalmersAllis Chalmers D21 Series II
vs
SAMESAME Rubin 120

How they compare

Headline specs vs. the whole Row Crop

n = 1,140–1,417

Engine Power

▲ D21 Series II higher · +1 hp (<1%)
D21 Series II121 hp
Rubin 120120 hp
Median Row Crop Tractor138 hp

D21 Series II is in the 40th percentile; Rubin 120 is in the 39th · 1,206 models

Engine Displacement

▲ D21 Series II higher · +60 ci (+16%)
D21 Series II426 ci
Rubin 120366 ci
Median Row Crop Tractor391 ci

D21 Series II is in the 72nd percentile; Rubin 120 is in the 46th · 1,409 models

Cylinders

= Effectively tied
D21 Series II6
Rubin 1206
Median Row Crop Tractor6

D21 Series II is in the 50th percentile; Rubin 120 is in the 50th · 1,417 models

Forward Gears

▲ Rubin 120 higher · +10 (+125%)
D21 Series II8
Rubin 12018
Median Row Crop Tractor16

D21 Series II is in the 16th percentile; Rubin 120 is in the 61st · 1,200 models

D21 Series II (A)Rubin 120 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IISAME Rubin 120Difference
ManufacturerAllis ChalmersSAME—
ModelD21 Series IIRubin 120—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IISAME Rubin 120Difference
ManufacturerAllis ChalmersSAME—
Model3500Not recorded—
Power Output121hp120hp▲ D21 Series II+1 hp · <1%
Rated RPM2,200RPM2,350RPM▲ Rubin 120+150 RPM · +7%
Cylinders66Same
Displacement426ci366ci▲ D21 Series II+60 ci · +16%
Bore4.3in4.1in▲ D21 Series II+0.2 in · +5%
Stroke5in4.5in▲ D21 Series II+0.5 in · +11%

Transmission

SpecAllis Chalmers D21 Series IISAME Rubin 120Difference
TypeSliding gear with dry disc clutchNot recorded—

Dimensions & Weight

SpecAllis Chalmers D21 Series IISAME Rubin 120Difference
Length160in184in▲ Rubin 120+24 in · +15%
Width91.3inNot recorded—
Height106in113in▲ Rubin 120+7 in · +7%
Operating Weight9,502lb13,450lb▲ Rubin 120+3,948 lb · +42%

Hydraulics

SpecAllis Chalmers D21 Series IISAME Rubin 120Difference
Steering TypePowerNot recorded—

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IISAME Rubin 120Difference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Tires

SpecAllis Chalmers D21 Series IISAME Rubin 120Difference
Front Tire SizeNot recorded16.9R30—
Rear Tire SizeNot recorded20.8R38—

Hitch & Towing

SpecAllis Chalmers D21 Series IISAME Rubin 120Difference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIII/IINot recorded—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecAllis Chalmers D21 Series IISAME Rubin 120Difference
Chassis Type4x2 2WD4x4 MFWD 4WD—
Drive Type2WD4WD—
Steering TypePowerNot recorded—
Brake TypeBand actuated discNot recorded—

Electrical

SpecAllis Chalmers D21 Series IISAME Rubin 120Difference
Starter TypeElectricNot recorded—

Capacities

SpecAllis Chalmers D21 Series IISAME Rubin 120Difference
Coolant7.8galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series IISAME Rubin 120Difference
TypeOpenNot recorded—

Category context

Both models against the field

Engine Power

median 138 hp
A · 40th percentile (121 hp)B · 39th percentile (120 hp)

Engine Displacement

median 391 ci
A · 72nd percentile (426 ci)B · 46th percentile (366 ci)

Cylinders

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

Forward Gears

median 16
A · 16th percentile (8)B · 61st percentile (18)

Operating Weight

median 12,307 lb
A · 28th percentile (9,502 lb)B · 59th percentile (13,450 lb)
A · D21 Series IIB · Rubin 120Median Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IIFull spec pageSAME Rubin 120