
Allis ChalmersModel A
Allis Chalmers HD11
Crawler
- power
- 110 hp
- displacement
- 516 ci
- Cylinders
- 6
- Forward gears
- 6
Head to head · Crawler

Crawler
Utility
How they compare
HD11 is in the 46th percentile; MT535B MFWD is in the 46th · 142 models
HD11 is in the 58th percentile; MT535B MFWD is in the 45th · 191 models
HD11 is in the 50th percentile; MT535B MFWD is in the 50th · 192 models
HD11 is in the 48th percentile; MT535B MFWD is in the 37th · 173 models
Full comparison
| Spec | Allis Chalmers HD11 | Challenger MT535B MFWD | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Challenger | — |
| Model | HD11 | MT535B MFWD | — |
| Category | Crawler, Agricultural | Utility | — |
| Spec | Allis Chalmers HD11 | Challenger MT535B MFWD | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | ACERT | — |
| Model | HD-516 | C6.6 | — |
| Power Output | 110hp | 110hp | Same |
| Rated RPM | 1,800RPM | 2,200RPM | ▲ MT535B MFWD+400 RPM · +22% |
| Cylinders | 6 | 6 | Same |
| Displacement | 516ci | 403ci | ▲ HD11+113 ci · +28% |
| Bore | 4.5in | Not recorded | — |
| Stroke | 5.6in | Not recorded | — |
| Spec | Allis Chalmers HD11 | Challenger MT535B MFWD | Difference |
|---|---|---|---|
| Type | Sliding Gear | Auto Power | — |
| Spec | Allis Chalmers HD11 | Challenger MT535B MFWD | Difference |
|---|---|---|---|
| Length | 154in | 184in | ▲ MT535B MFWD+30 in · +19% |
| Width | 40in | 81.6in | ▲ MT535B MFWD+41.6 in · +104% |
| Height | 84in | 113in | ▲ MT535B MFWD+29 in · +35% |
| Operating Weight | 21,000lb | 11,482lb | ▲ HD11+9,518 lb · +83% |
| Spec | Allis Chalmers HD11 | Challenger MT535B MFWD | Difference |
|---|---|---|---|
| Hitch Type | Not recorded | 3-Point | — |
| Hitch Position | Not recorded | Rear | — |
| Hitch Capacity | Not recorded | 10,915lb | — |
| Spec | Allis Chalmers HD11 | Challenger MT535B MFWD | Difference |
|---|---|---|---|
| Chassis Type | Crawler | 4x4 MFWD | — |
| Drive Type | Not recorded | 4WD | — |
| Brake Type | Contracting band | Not recorded | — |
| Spec | Allis Chalmers HD11 | Challenger MT535B MFWD | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric Start | — |
| Spec | Allis Chalmers HD11 | Challenger MT535B MFWD | Difference |
|---|---|---|---|
| Coolant | 11gal | 6.8gal | ▲ HD11+4.2 gal · +62% |
| Spec | Allis Chalmers HD11 | Challenger MT535B MFWD | Difference |
|---|---|---|---|
| Type | Open operator station | ROPS/FOPS | — |
Category context