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Allis ChalmersModel A
Allis Chalmers HD15
Industrial
- power
- Not recorded
- displacement
- 426 ci
- Cylinders
- 6
- Forward gears
- 6
Head to head · Industrial
Allis Chalmers HD15 vs Allis Chalmers HD9
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Allis ChalmersModel B
Allis Chalmers HD9
Industrial
- power
- Not recorded
- displacement
- 284 ci
- Cylinders
- 4
- Forward gears
- 6
Allis ChalmersAllis Chalmers HD15
vs
Allis ChalmersAllis Chalmers HD9
How they compare
Headline specs vs. the whole Industrial
Engine Displacement
▲ HD15 higher · +142 ci (+50%)HD15426 ci
HD9284 ci
Median Industrial Tractor284 ci
HD15 is in the 65th percentile; HD9 is in the 50th · 53 models
Cylinders
▲ HD15 higher · +2 (+50%)HD156
HD94
Median Industrial Tractor4
HD15 is in the 88th percentile; HD9 is in the 50th · 55 models
Forward Gears
= Effectively tiedHD156
HD96
Median Industrial Tractor5
HD15 is in the 65th percentile; HD9 is in the 65th · 43 models
Operating Weight
▲ HD15 higher · +12,095 lb (+64%)HD1530,895 lb
HD918,800 lb
Median Industrial Tractor9,127 lb
HD15 is in the 89th percentile; HD9 is in the 70th · 49 models
HD15 (A)HD9 (B)Median Industrial Tractor
Full comparison
Every spec, side by side
General Information
| Spec | Allis Chalmers HD15 | Allis Chalmers HD9 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Allis Chalmers | Same |
| Model | HD15 | HD9 | — |
| Category | Industrial | Industrial | Same |
Engine
| Spec | Allis Chalmers HD15 | Allis Chalmers HD9 | Difference |
|---|---|---|---|
| Manufacturer | General Motors | General Motors | Same |
| Rated RPM | 1,600RPM | 1,600RPM | Same |
| Cylinders | 6 | 4 | ▲ HD15+2 · +50% |
| Displacement | 426ci | 284ci | ▲ HD15+142 ci · +50% |
| Bore | 4.3in | 4.3in | Same |
| Stroke | 5in | 5in | Same |
Transmission
| Spec | Allis Chalmers HD15 | Allis Chalmers HD9 | Difference |
|---|---|---|---|
| Type | Constant Mesh | Gear | — |
Dimensions & Weight
| Spec | Allis Chalmers HD15 | Allis Chalmers HD9 | Difference |
|---|---|---|---|
| Length | 181in | 150in | ▲ HD15+31 in · +21% |
| Width | 96.8in | 95.1in | ▲ HD15+1.7 in · +2% |
| Height | 95in | 73.1in | ▲ HD15+21.9 in · +30% |
| Operating Weight | 30,895lb | 18,800lb | ▲ HD15+12,095 lb · +64% |
Hydraulics
| Spec | Allis Chalmers HD15 | Allis Chalmers HD9 | Difference |
|---|---|---|---|
| Steering Type | Hydraulic | Not recorded | — |
Chassis & Drive
| Spec | Allis Chalmers HD15 | Allis Chalmers HD9 | Difference |
|---|---|---|---|
| Steering Type | Hydraulic | Not recorded | — |
Electrical
| Spec | Allis Chalmers HD15 | Allis Chalmers HD9 | Difference |
|---|---|---|---|
| Starter Type | Electric Starter | Electric | — |
Capacities
| Spec | Allis Chalmers HD15 | Allis Chalmers HD9 | Difference |
|---|---|---|---|
| Coolant | 11.8gal | 7.3gal | ▲ HD15+4.5 gal · +62% |
Category context
Both models against the field
Engine Displacement
median 284 ciA · 65th percentile (426 ci)B · 50th percentile (284 ci)
Cylinders
median 4A · 88th percentile (6)B · 50th percentile (4)
Forward Gears
median 5A · 65th percentile (6)B · 65th percentile (6)
Operating Weight
median 9,127 lbA · 89th percentile (30,895 lb)B · 70th percentile (18,800 lb)
Length
median 125 inA · 73rd percentile (181 in)B · 63rd percentile (150 in)
A · HD15B · HD9Median Industrial Tractor