Head to head · Row Crop

Allis Chalmers D21 Series II vs CaseIH Farmall 120A

Image not recorded
CaseIHModel B

CaseIH Farmall 120A

Utility

power
118 hp
displacement
274 ci
Cylinders
4
Forward gears
16
Full Farmall 120A specs
Allis ChalmersAllis Chalmers D21 Series II
vs
CaseIHCaseIH Farmall 120A

How they compare

Headline specs vs. the whole Row Crop

n = 1,200–1,417

Engine Power

▲ D21 Series II higher · +3 hp (+3%)
D21 Series II121 hp
Farmall 120A118 hp
Median Row Crop Tractor138 hp

D21 Series II is in the 40th percentile; Farmall 120A is in the 37th · 1,206 models

Engine Displacement

▲ D21 Series II higher · +152 ci (+55%)
D21 Series II426 ci
Farmall 120A274 ci
Median Row Crop Tractor391 ci

D21 Series II is in the 72nd percentile; Farmall 120A is in the 24th · 1,409 models

Cylinders

▲ D21 Series II higher · +2 (+50%)
D21 Series II6
Farmall 120A4
Median Row Crop Tractor6

D21 Series II is in the 50th percentile; Farmall 120A is in the 17th · 1,417 models

Forward Gears

▲ Farmall 120A higher · +8 (+100%)
D21 Series II8
Farmall 120A16
Median Row Crop Tractor16

D21 Series II is in the 16th percentile; Farmall 120A is in the 50th · 1,200 models

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

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IICaseIH Farmall 120ADifference
ManufacturerAllis ChalmersCaseIH—
ModelD21 Series IIFarmall 120A—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IICaseIH Farmall 120ADifference
ManufacturerAllis ChalmersFPT—
Model3500Not recorded—
Power Output121hp118hp▲ D21 Series II+3 hp · +3%
Rated RPM2,200RPMNot recorded—
Cylinders64▲ D21 Series II+2 · +50%
Displacement426ci274ci▲ D21 Series II+152 ci · +55%
Bore4.3in4.1in▲ D21 Series II+0.2 in · +5%
Stroke5in5.2in▲ Farmall 120A+0.2 in · +4%

Transmission

SpecAllis Chalmers D21 Series IICaseIH Farmall 120ADifference
TypeSliding gear with dry disc clutchPower shuttle—

Dimensions & Weight

SpecAllis Chalmers D21 Series IICaseIH Farmall 120ADifference
Length160inNot recorded—
Width91.3inNot recorded—
Height106inNot recorded—
Operating Weight9,502lb8,091lb▲ D21 Series II+1,411 lb · +17%

Hydraulics

SpecAllis Chalmers D21 Series IICaseIH Farmall 120ADifference
System TypeNot recordedOpen Center—
Steering TypePowerPowerSame

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IICaseIH Farmall 120ADifference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D21 Series IICaseIH Farmall 120ADifference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIII/IIII—
Hitch PositionRearRearSame

Chassis & Drive

SpecAllis Chalmers D21 Series IICaseIH Farmall 120ADifference
Chassis Type4x2 2WD4x2 2WDSame
Drive Type2WD2WDSame
Steering TypePowerPowerSame
Brake TypeBand actuated discNot recorded—

Electrical

SpecAllis Chalmers D21 Series IICaseIH Farmall 120ADifference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IICaseIH Farmall 120ADifference
Coolant7.8galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series IICaseIH Farmall 120ADifference
TypeOpenROPS, Cab—

Category context

Both models against the field

Engine Power

median 138 hp
A · 40th percentile (121 hp)B · 37th percentile (118 hp)

Engine Displacement

median 391 ci
A · 72nd percentile (426 ci)B · 24th percentile (274 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 (9,502 lb)B · 21st percentile (8,091 lb)
A · D21 Series IIB · Farmall 120AMedian Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IIFull spec pageCaseIH Farmall 120A