
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
Agricultural
How they compare
7040 is in the 58th percentile; MXM155 Maxxum is in the 59th · 1,206 models
7040 is in the 72nd percentile; MXM155 Maxxum is in the 81st · 1,409 models
7040 is in the 50th percentile; MXM155 Maxxum is in the 50th · 1,417 models
7040 is in the 70th percentile; MXM155 Maxxum is in the 61st · 1,200 models
Full comparison
| Spec | Allis Chalmers 7040 | CaseIH MXM155 Maxxum | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | CaseIH | — |
| Model | 7040 | MXM155 Maxxum | — |
| Category | Row Crop | Agricultural | — |
| Spec | Allis Chalmers 7040 | CaseIH MXM155 Maxxum | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | CNH | — |
| Model | 3500 Mark II | Not recorded | — |
| Power Output | 151hp | 153hp | ▲ MXM155 Maxxum+2 hp · +1% |
| Rated RPM | 2,300RPM | 2,200RPM | ▲ 7040+100 RPM · +5% |
| Cylinders | 6 | 6 | Same |
| Displacement | 426ci | 457ci | ▲ MXM155 Maxxum+31 ci · +7% |
| Bore | 4.3in | 4.4in | ▲ MXM155 Maxxum+0.1 in · +2% |
| Stroke | 5in | 5in | Same |
| Spec | Allis Chalmers 7040 | CaseIH MXM155 Maxxum | Difference |
|---|---|---|---|
| Type | Partial Power Shift | partial power shift | Same |
| Spec | Allis Chalmers 7040 | CaseIH MXM155 Maxxum | Difference |
|---|---|---|---|
| Length | 174in | 186in | ▲ MXM155 Maxxum+12 in · +7% |
| Width | 95.5in | Not recorded | — |
| Height | 116in | 111in | ▲ 7040+5 in · +5% |
| Operating Weight | 11,700lb | 12,920lb | ▲ MXM155 Maxxum+1,220 lb · +10% |
| Spec | Allis Chalmers 7040 | CaseIH MXM155 Maxxum | Difference |
|---|---|---|---|
| System Type | Closed Center | Closed Center | Same |
| Steering Type | Hydrostatic Power | Power | — |
| Spec | Allis Chalmers 7040 | CaseIH MXM155 Maxxum | Difference |
|---|---|---|---|
| Type | Independent | Not recorded | — |
| Speed 1 | 540rpm | Not recorded | — |
| Spec | Allis Chalmers 7040 | CaseIH MXM155 Maxxum | Difference |
|---|---|---|---|
| Front Tire Size | 11.00-16 | Not recorded | — |
| Rear Tire Size | 18.4-38 | Not recorded | — |
| Spec | Allis Chalmers 7040 | CaseIH MXM155 Maxxum | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | III/II | III/II | Same |
| Hitch Position | Rear | Not recorded | — |
| Spec | Allis Chalmers 7040 | CaseIH MXM155 Maxxum | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x4 | — |
| Drive Type | 2WD | 4WD | — |
| Steering Type | Hydrostatic Power | Power | — |
| Brake Type | Differential Hydraulic Wet Discs | Not recorded | — |
| Spec | Allis Chalmers 7040 | CaseIH MXM155 Maxxum | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers 7040 | CaseIH MXM155 Maxxum | Difference |
|---|---|---|---|
| Coolant | 7.8gal | 6.9gal | ▲ 7040+0.9 gal · +13% |
| Spec | Allis Chalmers 7040 | CaseIH MXM155 Maxxum | Difference |
|---|---|---|---|
| Type | Acousta-Cab | Cab | — |
Category context