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Allis ChalmersModel A
Allis Chalmers HD11AG Series B
Industrial
- power
- 127 hp
- displacement
- 516 ci
- Cylinders
- 6
- Forward gears
- 6
Head to head · Industrial
Industrial

Crawler
How they compare
HD11AG Series B is in the 70th percentile; TD-20 200 is in the 78th · 53 models
HD11AG Series B is in the 88th percentile; TD-20 200 is in the 88th · 55 models
HD11AG Series B is in the 65th percentile; TD-20 200 is in the 65th · 43 models
HD11AG Series B is in the 87th percentile; TD-20 200 is in the 94th · 49 models
Full comparison
| Spec | Allis Chalmers HD11AG Series B | International Harvester TD-20 200 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | International Harvester | — |
| Model | HD11AG Series B | TD-20 200 | — |
| Category | Industrial | Crawler | — |
| Spec | Allis Chalmers HD11AG Series B | International Harvester TD-20 200 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | International Harvester | — |
| Model | 11000 | D-691 | — |
| Power Output | 127hp | 134hp | ▲ TD-20 200+7 hp · +6% |
| Rated RPM | 1,800RPM | 1,550RPM | ▲ HD11AG Series B+250 RPM · +16% |
| Cylinders | 6 | 6 | Same |
| Displacement | 516ci | 691ci | ▲ TD-20 200+175 ci · +34% |
| Bore | 4.4in | 4.8in | ▲ TD-20 200+0.4 in · +9% |
| Stroke | 5.6in | 6.5in | ▲ TD-20 200+0.9 in · +16% |
| Spec | Allis Chalmers HD11AG Series B | International Harvester TD-20 200 | Difference |
|---|---|---|---|
| Type | Gear | Gear | Same |
| Spec | Allis Chalmers HD11AG Series B | International Harvester TD-20 200 | Difference |
|---|---|---|---|
| Length | 125in | Not recorded | — |
| Width | 96in | 22in | ▲ HD11AG Series B+74 in · +336% |
| Height | 84in | Not recorded | — |
| Operating Weight | 25,000lb | 32,485lb | ▲ TD-20 200+7,485 lb · +30% |
| Spec | Allis Chalmers HD11AG Series B | International Harvester TD-20 200 | Difference |
|---|---|---|---|
| Chassis Type | Tracked | Not recorded | — |
| Drive Type | Track | Not recorded | — |
| Spec | Allis Chalmers HD11AG Series B | International Harvester TD-20 200 | Difference |
|---|---|---|---|
| Starter Type | Electric | Gasoline-start | — |
| Spec | Allis Chalmers HD11AG Series B | International Harvester TD-20 200 | Difference |
|---|---|---|---|
| Coolant | 11gal | Not recorded | — |
Category context