
Allis ChalmersModel A
Allis Chalmers 7040
Row Crop
- power
- 151 hp
- displacement
- 426 ci
- Cylinders
- 6
- Forward gears
- 20
Head to head · Row Crop

Row Crop
Row Crop
How they compare
7040 is in the 58th percentile; 8050 is in the 66th · 1,206 models
7040 is in the 72nd percentile; 8050 is in the 72nd · 1,409 models
7040 is in the 50th percentile; 8050 is in the 50th · 1,417 models
7040 is in the 70th percentile; 8050 is in the 70th · 1,200 models
Full comparison
| Spec | Allis Chalmers 7040 | Allis Chalmers 8050 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Allis Chalmers | Same |
| Model | 7040 | 8050 | — |
| Category | Row Crop | Row Crop | Same |
| Spec | Allis Chalmers 7040 | Allis Chalmers 8050 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Allis Chalmers | Same |
| Model | 3500 Mark II | 670I | — |
| Power Output | 151hp | 169hp | ▲ 8050+18 hp · +12% |
| Rated RPM | 2,300RPM | 2,300RPM | Same |
| Cylinders | 6 | 6 | Same |
| Displacement | 426ci | 426ci | Same |
| Bore | 4.3in | 4.3in | Same |
| Stroke | 5in | 5in | Same |
| Spec | Allis Chalmers 7040 | Allis Chalmers 8050 | Difference |
|---|---|---|---|
| Type | Partial Power Shift | Partial power shift | Same |
| Spec | Allis Chalmers 7040 | Allis Chalmers 8050 | Difference |
|---|---|---|---|
| Length | 174in | 187in | ▲ 8050+13 in · +7% |
| Width | 95.5in | 95.5in | Same |
| Height | 116in | 113in | ▲ 7040+3 in · +3% |
| Operating Weight | 11,700lb | 15,305lb | ▲ 8050+3,605 lb · +31% |
| Spec | Allis Chalmers 7040 | Allis Chalmers 8050 | Difference |
|---|---|---|---|
| System Type | Closed Center | Closed-center load-sensitive | — |
| Steering Type | Hydrostatic Power | Hydrostatic power | Same |
| Spec | Allis Chalmers 7040 | Allis Chalmers 8050 | Difference |
|---|---|---|---|
| Type | Independent | Independent | Same |
| Speed 1 | 540rpm | 1,000rpm | ▲ 8050+460 rpm · +85% |
| Speed 2 | Not recorded | 540rpm | — |
| Speed 3 | Not recorded | 1,000rpm | — |
| Spec | Allis Chalmers 7040 | Allis Chalmers 8050 | Difference |
|---|---|---|---|
| Front Tire Size | 11.00-16 | Not recorded | — |
| Rear Tire Size | 18.4-38 | Not recorded | — |
| Spec | Allis Chalmers 7040 | Allis Chalmers 8050 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Three-Point Hitch | Same |
| Hitch Category | III/II | III/II | Same |
| Hitch Position | Rear | Rear | Same |
| Hitch Capacity | Not recorded | 6,680lb | — |
| Spec | Allis Chalmers 7040 | Allis Chalmers 8050 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x2 2WD | Same |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Hydrostatic Power | Hydrostatic power | Same |
| Brake Type | Differential Hydraulic Wet Discs | Differential hydraulic wet discs | Same |
| Spec | Allis Chalmers 7040 | Allis Chalmers 8050 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers 7040 | Allis Chalmers 8050 | Difference |
|---|---|---|---|
| Coolant | 7.8gal | 8gal | ▲ 8050+0.2 gal · +3% |
| Spec | Allis Chalmers 7040 | Allis Chalmers 8050 | Difference |
|---|---|---|---|
| Type | Acousta-Cab | Acousta Cab | — |
Category context