
Allis ChalmersModel A
Allis Chalmers HD5
Crawler
- power
- Not recorded
- displacement
- 142 ci
- Cylinders
- 2
- Forward gears
- 5
Head to head · Agricultural

Crawler
Agricultural
How they compare
HD5 is in the 4th percentile; 30TD is in the 9th · 1,083 models
HD5 is in the 3rd percentile; 30TD is in the 31st · 1,130 models
HD5 is in the 7th percentile; 30TD is in the 11th · 972 models
HD5 is in the 48th percentile; 30TD is in the 32nd · 971 models
Full comparison
| Spec | Allis Chalmers HD5 | David Brown 30TD | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | David Brown | — |
| Model | HD5 | 30TD | — |
| Category | Crawler, Agricultural | Agricultural | — |
| Spec | Allis Chalmers HD5 | David Brown 30TD | Difference |
|---|---|---|---|
| Manufacturer | General Motors | David Brown | — |
| Power Output | Not recorded | 36hp | — |
| Rated RPM | 1,800RPM | 1,800RPM | Same |
| Cylinders | 2 | 4 | ▲ 30TD+2 · +100% |
| Displacement | 142ci | 165ci | ▲ 30TD+23 ci · +16% |
| Bore | 4.3in | 3.6in | ▲ HD5+0.7 in · +19% |
| Stroke | 5in | 4in | ▲ HD5+1 in · +25% |
| Spec | Allis Chalmers HD5 | David Brown 30TD | Difference |
|---|---|---|---|
| Type | Sliding Gear | Gear type with dry disc clutch | — |
| Spec | Allis Chalmers HD5 | David Brown 30TD | Difference |
|---|---|---|---|
| Length | 125in | 113in | ▲ HD5+12 in · +11% |
| Width | 62.5in | 63in | ▲ 30TD+0.5 in · <1% |
| Height | 60.4in | 56in | ▲ HD5+4.4 in · +8% |
| Operating Weight | 10,500lb | 8,091lb | ▲ HD5+2,409 lb · +30% |
| Spec | Allis Chalmers HD5 | David Brown 30TD | Difference |
|---|---|---|---|
| Chassis Type | Crawler | Crawler | Same |
| Drive Type | Not recorded | Crawler Drive | — |
| Spec | Allis Chalmers HD5 | David Brown 30TD | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers HD5 | David Brown 30TD | Difference |
|---|---|---|---|
| Coolant | 3.8gal | 4.2gal | ▲ 30TD+0.4 gal · +11% |
| Spec | Allis Chalmers HD5 | David Brown 30TD | Difference |
|---|---|---|---|
| Type | Open Operator Station | Open operator station | Same |
Category context