Head to head · Row Crop

Allis Chalmers D21 Series I vs John Deere 3255

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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
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John DeereModel B

John Deere 3255

Utility

power
105 hp
displacement
359 ci
Cylinders
6
Forward gears
16
Full 3255 specs
Allis ChalmersAllis Chalmers D21 Series I
vs
John DeereJohn Deere 3255

How they compare

Headline specs vs. the whole Row Crop

n = 1,200–1,417

Engine Power

▲ 3255 higher · +2 hp (+2%)
D21 Series I103 hp
3255105 hp
Median Row Crop Tractor138 hp

D21 Series I is in the 27th percentile; 3255 is in the 28th · 1,206 models

Engine Displacement

▲ D21 Series I higher · +67 ci (+19%)
D21 Series I426 ci
3255359 ci
Median Row Crop Tractor391 ci

D21 Series I is in the 72nd percentile; 3255 is in the 41st · 1,409 models

Cylinders

= Effectively tied
D21 Series I6
32556
Median Row Crop Tractor6

D21 Series I is in the 50th percentile; 3255 is in the 50th · 1,417 models

Forward Gears

▲ 3255 higher · +8 (+100%)
D21 Series I8
325516
Median Row Crop Tractor16

D21 Series I is in the 16th percentile; 3255 is in the 50th · 1,200 models

D21 Series I (A)3255 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IJohn Deere 3255Difference
ManufacturerAllis ChalmersJohn Deere—
ModelD21 Series I3255—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IJohn Deere 3255Difference
ManufacturerAllis ChalmersJohn Deere—
Model3400Not recorded—
Power Output103hp105hp▲ 3255+2 hp · +2%
Rated RPM2,200RPM2,198RPM▲ D21 Series I+2 RPM · <1%
Cylinders66Same
Displacement426ci359ci▲ D21 Series I+67 ci · +19%
Bore4.3in4.2in▲ D21 Series I+0.1 in · +2%
Stroke5in4.3in▲ D21 Series I+0.7 in · +16%

Transmission

SpecAllis Chalmers D21 Series IJohn Deere 3255Difference
TypeSliding gear with dry disc clutchTSS High-Low—

Dimensions & Weight

SpecAllis Chalmers D21 Series IJohn Deere 3255Difference
Length161inNot recorded—
Width91.6inNot recorded—
Height107inNot recorded—
Operating Weight9,500lb11,730lb▲ 3255+2,230 lb · +23%

Hydraulics

SpecAllis Chalmers D21 Series IJohn Deere 3255Difference
System TypeNot recordedClosed center—
Pump Flow CapacityNot recorded20.5gpm—
PressureNot recorded1,450psi—
Steering TypePowerPowerSame

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IJohn Deere 3255Difference
TypeIndependentIndependentSame
Speed 11,000rpm540rpm▲ D21 Series I+460 rpm · +85%
Speed 2Not recorded1,000rpm—

Hitch & Towing

SpecAllis Chalmers D21 Series IJohn Deere 3255Difference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIII/IICategory 2—
Hitch PositionRearNot recorded—
Hitch CapacityNot recorded6,965lb—

Chassis & Drive

SpecAllis Chalmers D21 Series IJohn Deere 3255Difference
Chassis Type4x2 2WD4x4 MFWD 4WD—
Drive Type2WDMFWD 4WD—
Steering TypePowerPowerSame
Brake TypeBand actuated discHydraulic wet disc—

Electrical

SpecAllis Chalmers D21 Series IJohn Deere 3255Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IJohn Deere 3255Difference
Coolant5.3gal4.5gal▲ D21 Series I+0.8 gal · +18%

Operator Station

SpecAllis Chalmers D21 Series IJohn Deere 3255Difference
TypeOpenFour-post ROPS or Sound-Gard body and cab (optional)—

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 · 41st percentile (359 ci)

Cylinders

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

Forward Gears

median 16
A · 16th percentile (8)B · 50th percentile (16)

Operating Weight

median 12,307 lb
A · 28th percentile (9,500 lb)B · 46th percentile (11,730 lb)
A · D21 Series IB · 3255Median Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IFull spec pageJohn Deere 3255