Head to head · Row Crop

Allis Chalmers D21 Series I vs John Deere 5101E

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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
Image not recorded
John DeereModel B

John Deere 5101E

Utility

power
101 hp
displacement
276 ci
Cylinders
4
Forward gears
12
Full 5101E specs
Allis ChalmersAllis Chalmers D21 Series I
vs
John DeereJohn Deere 5101E

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

▲ D21 Series I higher · +2 hp (+2%)
D21 Series I103 hp
5101E101 hp
Median Row Crop Tractor138 hp

D21 Series I is in the 27th percentile; 5101E is in the 26th · 1,206 models

Engine Displacement

▲ D21 Series I higher · +150 ci (+54%)
D21 Series I426 ci
5101E276 ci
Median Row Crop Tractor391 ci

D21 Series I is in the 72nd percentile; 5101E is in the 25th · 1,409 models

Cylinders

▲ D21 Series I higher · +2 (+50%)
D21 Series I6
5101E4
Median Row Crop Tractor6

D21 Series I is in the 50th percentile; 5101E is in the 17th · 1,417 models

Forward Gears

▲ 5101E higher · +4 (+50%)
D21 Series I8
5101E12
Median Row Crop Tractor16

D21 Series I is in the 16th percentile; 5101E is in the 27th · 1,200 models

D21 Series I (A)5101E (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IJohn Deere 5101EDifference
ManufacturerAllis ChalmersJohn Deere—
ModelD21 Series I5101E—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IJohn Deere 5101EDifference
ManufacturerAllis ChalmersJohn Deere—
Model3400PowerTech 4045—
Power Output103hp101hp▲ D21 Series I+2 hp · +2%
Rated RPM2,200RPM2,400RPM▲ 5101E+200 RPM · +9%
Cylinders64▲ D21 Series I+2 · +50%
Displacement426ci276ci▲ D21 Series I+150 ci · +54%
Bore4.3in4.2in▲ D21 Series I+0.1 in · +2%
Stroke5in5inSame

Transmission

SpecAllis Chalmers D21 Series IJohn Deere 5101EDifference
TypeSliding gear with dry disc clutchPartially synchronized—

Dimensions & Weight

SpecAllis Chalmers D21 Series IJohn Deere 5101EDifference
Length161in148in▲ D21 Series I+13 in · +9%
Width91.6in64.6in▲ D21 Series I+27 in · +42%
Height107in98.8in▲ D21 Series I+8.2 in · +8%
Operating Weight9,500lb7,320lb▲ D21 Series I+2,180 lb · +30%

Hydraulics

SpecAllis Chalmers D21 Series IJohn Deere 5101EDifference
System TypeNot recordedOpen center—
Steering TypePowerHydrostatic power—

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IJohn Deere 5101EDifference
TypeIndependentIndependent with mechanical clutch—
Speed 11,000rpm540rpm▲ D21 Series I+460 rpm · +85%

Hitch & Towing

SpecAllis Chalmers D21 Series IJohn Deere 5101EDifference
Hitch TypeThree-Point HitchThree-Point HitchSame
Hitch CategoryIII/IIII/I—
Hitch PositionRearRearSame
Hitch CapacityNot recorded3,220lb—

Chassis & Drive

SpecAllis Chalmers D21 Series IJohn Deere 5101EDifference
Chassis Type4x2 2WD4x4 MFWD 4WD—
Drive Type2WDMFWD 4WD—
Steering TypePowerHydrostatic power—
Brake TypeBand actuated discIndependent hydraulic wet disc—

Electrical

SpecAllis Chalmers D21 Series IJohn Deere 5101EDifference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IJohn Deere 5101EDifference
Coolant5.3gal3gal▲ D21 Series I+2.3 gal · +77%

Operator Station

SpecAllis Chalmers D21 Series IJohn Deere 5101EDifference
TypeOpenCab with heat and air-conditioning—

Category context

Both models against the field

Engine Power

median 138 hp
A · 27th percentile (103 hp)B · 26th percentile (101 hp)

Engine Displacement

median 391 ci
A · 72nd percentile (426 ci)B · 25th percentile (276 ci)

Cylinders

median 6
A · 50th percentile (6)B · 17th percentile (4)

Forward Gears

median 16
A · 16th percentile (8)B · 27th percentile (12)

Operating Weight

median 12,307 lb
A · 28th percentile (9,500 lb)B · 17th percentile (7,320 lb)
A · D21 Series IB · 5101EMedian Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IFull spec pageJohn Deere 5101E