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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
Industrial

Standard Tread
How they compare
HD15 is in the 88th percentile; 60-100 is in the 50th · 55 models
HD15 is in the 89th percentile; 60-100 is in the 98th · 49 models
Full comparison
| Spec | Allis Chalmers HD15 | Hart-Parr 60-100 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Hart-Parr | — |
| Model | HD15 | 60-100 | — |
| Category | Industrial | Standard Tread | — |
| Spec | Allis Chalmers HD15 | Hart-Parr 60-100 | Difference |
|---|---|---|---|
| Manufacturer | General Motors | Hart-Parr | — |
| Rated RPM | 1,600RPM | Not recorded | — |
| Cylinders | 6 | 4 | ▲ HD15+2 · +50% |
| Displacement | 426ci | Not recorded | — |
| Bore | 4.3in | Not recorded | — |
| Stroke | 5in | Not recorded | — |
| Spec | Allis Chalmers HD15 | Hart-Parr 60-100 | Difference |
|---|---|---|---|
| Type | Constant Mesh | Gear | — |
| Spec | Allis Chalmers HD15 | Hart-Parr 60-100 | Difference |
|---|---|---|---|
| Length | 181in | Not recorded | — |
| Width | 96.8in | Not recorded | — |
| Height | 95in | Not recorded | — |
| Operating Weight | 30,895lb | 52,000lb | ▲ 60-100+21,105 lb · +68% |
| Spec | Allis Chalmers HD15 | Hart-Parr 60-100 | Difference |
|---|---|---|---|
| Steering Type | Hydraulic | Not recorded | — |
| Spec | Allis Chalmers HD15 | Hart-Parr 60-100 | Difference |
|---|---|---|---|
| Hitch Category | Not recorded | III | — |
| Spec | Allis Chalmers HD15 | Hart-Parr 60-100 | Difference |
|---|---|---|---|
| Steering Type | Hydraulic | Not recorded | — |
| Spec | Allis Chalmers HD15 | Hart-Parr 60-100 | Difference |
|---|---|---|---|
| Starter Type | Electric Starter | Not recorded | — |
| Spec | Allis Chalmers HD15 | Hart-Parr 60-100 | Difference |
|---|---|---|---|
| Coolant | 11.8gal | Not recorded | — |
Category context