Head to head · Agricultural

Allis Chalmers 170 vs Allis Chalmers HD21

Allis Chalmers 170 Tractor
Allis ChalmersModel A

Allis Chalmers 170

Agricultural

power
Not recorded
displacement
226 ci
Cylinders
4
Forward gears
8
Full 170 specs
Allis Chalmers HD21 Tractor
Allis ChalmersModel B

Allis Chalmers HD21

Agricultural

power
225 hp
displacement
844 ci
Cylinders
6
Forward gears
2
Full HD21 specs
Allis ChalmersAllis Chalmers 170
vs
Allis ChalmersAllis Chalmers HD21

How they compare

Headline specs vs. the whole Agricultural

n = 795–1,130

Engine Displacement

▲ HD21 higher · +618 ci (+273%)
170226 ci
HD21844 ci
Median Agricultural Tractor336 ci

170 is in the 20th percentile; HD21 is in the 96th · 1,083 models

Cylinders

▲ HD21 higher · +2 (+50%)
1704
HD216
Median Agricultural Tractor5.5

170 is in the 31st percentile; HD21 is in the 74th · 1,130 models

Forward Gears

▲ 170 higher · +6 (+300%)
1708
HD212
Median Agricultural Tractor16

170 is in the 16th percentile; HD21 is in the 1st · 972 models

Operating Weight

▲ HD21 higher · +39,780 lb (+695%)
1705,720 lb
HD2145,500 lb
Median Agricultural Tractor10,914 lb

170 is in the 18th percentile; HD21 is in the 99th · 971 models

170 (A)HD21 (B)Median Agricultural Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers 170Allis Chalmers HD21Difference
ManufacturerAllis ChalmersAllis ChalmersSame
Model170HD21—
CategoryAgriculturalAgriculturalSame

Engine

SpecAllis Chalmers 170Allis Chalmers HD21Difference
ManufacturerAllis-ChalmersAllis-ChalmersSame
Power OutputNot recorded225hp—
Rated RPM1,800RPM1,800RPMSame
Cylinders46▲ HD21+2 · +50%
Displacement226ci844ci▲ HD21+618 ci · +273%
Bore4in5.3in▲ HD21+1.3 in · +32%
Stroke4.1in6.5in▲ HD21+2.4 in · +59%

Transmission

SpecAllis Chalmers 170Allis Chalmers HD21Difference
TypeTwo-speed power shiftTorque Converter—

Dimensions & Weight

SpecAllis Chalmers 170Allis Chalmers HD21Difference
Length150in198in▲ HD21+48 in · +32%
Width78inNot recorded—
Height58.7in99in▲ HD21+40.3 in · +69%
Operating Weight5,720lb45,500lb▲ HD21+39,780 lb · +695%

Hydraulics

SpecAllis Chalmers 170Allis Chalmers HD21Difference
System TypeOpenNot recorded—
Steering TypeHydraulic power assistNot recorded—

Power Take-off (PTO)

SpecAllis Chalmers 170Allis Chalmers HD21Difference
TypeLiveNot recorded—
Speed 1540rpmNot recorded—

Tires

SpecAllis Chalmers 170Allis Chalmers HD21Difference
Rear Tire Size16.9x28Not recorded—

Hitch & Towing

SpecAllis Chalmers 170Allis Chalmers HD21Difference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIINot recorded—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecAllis Chalmers 170Allis Chalmers HD21Difference
Chassis Type4x2 2WDNot recorded—
Drive Type2WDNot recorded—
Steering TypeHydraulic power assistNot recorded—
Brake TypeDifferential mechanical contracting band and discNot recorded—

Electrical

SpecAllis Chalmers 170Allis Chalmers HD21Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers 170Allis Chalmers HD21Difference
Coolant3.8gal20gal▲ HD21+16.2 gal · +426%

Operator Station

SpecAllis Chalmers 170Allis Chalmers HD21Difference
TypeOpen operator stationNot recorded—

Category context

Both models against the field

Engine Displacement

median 336 ci
A · 20th percentile (226 ci)B · 96th percentile (844 ci)

Cylinders

median 5.5
A · 31st percentile (4)B · 74th percentile (6)

Forward Gears

median 16
A · 16th percentile (8)B · 1st percentile (2)

Operating Weight

median 10,914 lb
A · 18th percentile (5,720 lb)B · 99th percentile (45,500 lb)

Length

median 173 in
A · 26th percentile (150 in)B · 77th percentile (198 in)
A · 170B · HD21Median Agricultural Tractor
Full spec pageAllis Chalmers 170Full spec pageAllis Chalmers HD21