Head to head · Row Crop

Allis Chalmers D21 Series I vs Massey Ferguson 3120

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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
Massey Ferguson 3120 Tractor
Massey FergusonModel B

Massey Ferguson 3120

Row Crop

power
104 hp
displacement
365 ci
Cylinders
6
Forward gears
32
Full 3120 specs
Allis ChalmersAllis Chalmers D21 Series I
vs
Massey FergusonMassey Ferguson 3120

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

▲ 3120 higher · +1 hp (<1%)
D21 Series I103 hp
3120104 hp
Median Row Crop Tractor138 hp

D21 Series I is in the 27th percentile; 3120 is in the 28th · 1,206 models

Engine Displacement

▲ D21 Series I higher · +61 ci (+17%)
D21 Series I426 ci
3120365 ci
Median Row Crop Tractor391 ci

D21 Series I is in the 72nd percentile; 3120 is in the 43rd · 1,409 models

Cylinders

= Effectively tied
D21 Series I6
31206
Median Row Crop Tractor6

D21 Series I is in the 50th percentile; 3120 is in the 50th · 1,417 models

Forward Gears

▲ 3120 higher · +24 (+300%)
D21 Series I8
312032
Median Row Crop Tractor16

D21 Series I is in the 16th percentile; 3120 is in the 91st · 1,200 models

D21 Series I (A)3120 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IMassey Ferguson 3120Difference
ManufacturerAllis ChalmersMassey Ferguson—
ModelD21 Series I3120—
CategoryRow CropRow CropSame

Engine

SpecAllis Chalmers D21 Series IMassey Ferguson 3120Difference
ManufacturerAllis ChalmersPerkins Diesel—
Model3400Quadram 1000—
Power Output103hp104hp▲ 3120+1 hp · <1%
Rated RPM2,200RPM2,200RPMSame
Cylinders66Same
Displacement426ci365ci▲ D21 Series I+61 ci · +17%
Bore4.3in3.9in▲ D21 Series I+0.4 in · +10%
Stroke5in5inSame

Transmission

SpecAllis Chalmers D21 Series IMassey Ferguson 3120Difference
TypeSliding gear with dry disc clutchFour-speed power shift with two-speed power shift (Dynashift)—

Dimensions & Weight

SpecAllis Chalmers D21 Series IMassey Ferguson 3120Difference
Length161in181in▲ 3120+20 in · +12%
Width91.6in78in▲ D21 Series I+13.6 in · +17%
Height107in109in▲ 3120+2 in · +2%
Operating Weight9,500lb10,470lb▲ 3120+970 lb · +10%

Hydraulics

SpecAllis Chalmers D21 Series IMassey Ferguson 3120Difference
System TypeNot recordedOpen center—
Steering TypePowerHydrostatic power—

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IMassey Ferguson 3120Difference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D21 Series IMassey Ferguson 3120Difference
Hitch TypeThree-Point HitchThree-Point HitchSame
Hitch CategoryIII/IICategory 3—
Hitch PositionRearRearSame

Chassis & Drive

SpecAllis Chalmers D21 Series IMassey Ferguson 3120Difference
Chassis Type4x2 2WD4x4 MFWD 4WD—
Drive Type2WDMFWD 4WD—
Steering TypePowerHydrostatic power—
Brake TypeBand actuated discNot recorded—

Electrical

SpecAllis Chalmers D21 Series IMassey Ferguson 3120Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IMassey Ferguson 3120Difference
Coolant5.3gal6.6gal▲ 3120+1.3 gal · +25%

Operator Station

SpecAllis Chalmers D21 Series IMassey Ferguson 3120Difference
TypeOpenCab—

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 · 43rd percentile (365 ci)

Cylinders

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

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 · 35th percentile (10,470 lb)
A · D21 Series IB · 3120Median Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IFull spec pageMassey Ferguson 3120