
Allis ChalmersModel A
Allis Chalmers D15 Series I
Row Crop
- power
- 40 hp
- displacement
- 149 ci
- Cylinders
- 4
- Forward gears
- 8
Head to head · Row Crop

Row Crop
Utility
How they compare
D15 Series I is in the 4th percentile; DX40 is in the 4th · 1,206 models
D15 Series I is in the 4th percentile; DX40 is in the 2nd · 1,409 models
D15 Series I is in the 17th percentile; DX40 is in the 17th · 1,417 models
D15 Series I is in the 5th percentile; DX40 is in the 3rd · 1,350 models
Full comparison
| Spec | Allis Chalmers D15 Series I | CaseIH DX40 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | CaseIH | — |
| Model | D15 Series I | DX40 | — |
| Category | Row Crop | Utility | — |
| Spec | Allis Chalmers D15 Series I | CaseIH DX40 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Shibaura | — |
| Model | Allis Chalmers | Not recorded | — |
| Power Output | 40hp | 40hp | Same |
| Rated RPM | 2,000RPM | 2,600RPM | ▲ DX40+600 RPM · +30% |
| Cylinders | 4 | 4 | Same |
| Displacement | 149ci | 122ci | ▲ D15 Series I+27 ci · +22% |
| Bore | 3.5in | 3.3in | ▲ D15 Series I+0.2 in · +6% |
| Stroke | 3.9in | 3.5in | ▲ D15 Series I+0.4 in · +11% |
| Spec | Allis Chalmers D15 Series I | CaseIH DX40 | Difference |
|---|---|---|---|
| Type | Partial Power Shift | Hydrostatic | — |
| Spec | Allis Chalmers D15 Series I | CaseIH DX40 | Difference |
|---|---|---|---|
| Length | 130in | 116in | ▲ D15 Series I+14 in · +12% |
| Width | 66.9in | 94.5in | ▲ DX40+27.6 in · +41% |
| Height | 79.9in | Not recorded | — |
| Operating Weight | 3,990lb | 3,328lb | ▲ D15 Series I+662 lb · +20% |
| Spec | Allis Chalmers D15 Series I | CaseIH DX40 | Difference |
|---|---|---|---|
| Steering Type | Manual | Power | — |
| Spec | Allis Chalmers D15 Series I | CaseIH DX40 | Difference |
|---|---|---|---|
| Type | Live | Not recorded | — |
| Speed 1 | 540rpm | Not recorded | — |
| Spec | Allis Chalmers D15 Series I | CaseIH DX40 | Difference |
|---|---|---|---|
| Hitch Type | Snap-Coupler | Not recorded | — |
| Hitch Category | II/I | I | — |
| Hitch Position | Rear | Not recorded | — |
| Spec | Allis Chalmers D15 Series I | CaseIH DX40 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x4 MFWD 4WD | — |
| Drive Type | 2WD | 4WD | — |
| Steering Type | Manual | Power | — |
| Brake Type | Expanding shoe | Not recorded | — |
| Spec | Allis Chalmers D15 Series I | CaseIH DX40 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers D15 Series I | CaseIH DX40 | Difference |
|---|---|---|---|
| Coolant | 2.8gal | Not recorded | — |
| Spec | Allis Chalmers D15 Series I | CaseIH DX40 | Difference |
|---|---|---|---|
| Type | Open | Not recorded | — |
Category context