Head to head · Row Crop

Allis Chalmers D21 Series II vs John Deere 6R 120

Image not recorded
John DeereModel B

John Deere 6R 120

Utility

power
118 hp
displacement
276 ci
Cylinders
4
Forward gears
Not recorded
Full 6R 120 specs
Allis ChalmersAllis Chalmers D21 Series II
vs
John DeereJohn Deere 6R 120

How they compare

Headline specs vs. the whole Row Crop

n = 1,206–1,417

Engine Power

▲ D21 Series II higher · +3 hp (+3%)
D21 Series II121 hp
6R 120118 hp
Median Row Crop Tractor138 hp

D21 Series II is in the 40th percentile; 6R 120 is in the 37th · 1,206 models

Engine Displacement

▲ D21 Series II higher · +150 ci (+54%)
D21 Series II426 ci
6R 120276 ci
Median Row Crop Tractor391 ci

D21 Series II is in the 72nd percentile; 6R 120 is in the 25th · 1,409 models

Cylinders

▲ D21 Series II higher · +2 (+50%)
D21 Series II6
6R 1204
Median Row Crop Tractor6

D21 Series II is in the 50th percentile; 6R 120 is in the 17th · 1,417 models

Operating Weight

▲ 6R 120 higher · +3,946 lb (+42%)
D21 Series II9,502 lb
6R 12013,448 lb
Median Row Crop Tractor12,307 lb

D21 Series II is in the 28th percentile; 6R 120 is in the 59th · 1,350 models

D21 Series II (A)6R 120 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IIJohn Deere 6R 120Difference
ManufacturerAllis ChalmersJohn Deere—
ModelD21 Series II6R 120—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IIJohn Deere 6R 120Difference
ManufacturerAllis ChalmersJohn Deere—
Model3500PowerTech PSS—
Power Output121hp118hp▲ D21 Series II+3 hp · +3%
Rated RPM2,200RPM1,600RPM▲ D21 Series II+600 RPM · +38%
Cylinders64▲ D21 Series II+2 · +50%
Displacement426ci276ci▲ D21 Series II+150 ci · +54%
Bore4.3in4.2in▲ D21 Series II+0.1 in · +2%
Stroke5in5inSame

Transmission

SpecAllis Chalmers D21 Series IIJohn Deere 6R 120Difference
TypeSliding gear with dry disc clutchContinuously Variable Transmission (CVT)—

Dimensions & Weight

SpecAllis Chalmers D21 Series IIJohn Deere 6R 120Difference
Length160inNot recorded—
Width91.3inNot recorded—
Height106inNot recorded—
Operating Weight9,502lb13,448lb▲ 6R 120+3,946 lb · +42%

Hydraulics

SpecAllis Chalmers D21 Series IIJohn Deere 6R 120Difference
System TypeNot recordedClosed-center PFC—
Steering TypePowerPowerSame

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IIJohn Deere 6R 120Difference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D21 Series IIJohn Deere 6R 120Difference
Hitch TypeThree-Point HitchThree-Point HitchSame
Hitch CategoryIII/IIIII—
Hitch PositionRearRearSame

Chassis & Drive

SpecAllis Chalmers D21 Series IIJohn Deere 6R 120Difference
Chassis Type4x2 2WD4x4 MFWD 4WD—
Drive Type2WDMFWD 4WD—
Steering TypePowerPowerSame
Brake TypeBand actuated discNot recorded—

Electrical

SpecAllis Chalmers D21 Series IIJohn Deere 6R 120Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IIJohn Deere 6R 120Difference
Coolant7.8galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series IIJohn Deere 6R 120Difference
TypeOpenNot recorded—

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 · 25th percentile (276 ci)

Cylinders

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

Operating Weight

median 12,307 lb
A · 28th percentile (9,502 lb)B · 59th percentile (13,448 lb)
A · D21 Series IIB · 6R 120Median Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IIFull spec pageJohn Deere 6R 120