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

Utility
How they compare
D15 is in the 3rd percentile; GX40 is in the 3rd · 1,206 models
D15 is in the 4th percentile; GX40 is in the 1st · 1,409 models
D15 is in the 17th percentile; GX40 is in the 2nd · 1,417 models
D15 is in the 6th percentile; GX40 is in the 3rd · 1,350 models
Full comparison
| Spec | Allis Chalmers D15 | McCormick Intl GX40 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | McCormick Intl | — |
| Model | D15 | GX40 | — |
| Category | Row Crop | Utility | — |
| Spec | Allis Chalmers D15 | McCormick Intl GX40 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Yanmar | — |
| Power Output | 37.4hp | 37.5hp | ▲ GX40+0.1 hp · <1% |
| Rated RPM | 2,000RPM | 2,800RPM | ▲ GX40+800 RPM · +40% |
| Cylinders | 4 | 3 | ▲ D15+1 · +33% |
| Displacement | 149ci | 100ci | ▲ D15+49 ci · +49% |
| Bore | 3.5in | 3.5in | Same |
| Stroke | 3.9in | 3.5in | ▲ D15+0.4 in · +11% |
| Spec | Allis Chalmers D15 | McCormick Intl GX40 | Difference |
|---|---|---|---|
| Type | Partial power shift | Hydrostatic | — |
| Spec | Allis Chalmers D15 | McCormick Intl GX40 | Difference |
|---|---|---|---|
| Length | 130in | 135in | ▲ GX40+5 in · +4% |
| Width | 67in | 52in | ▲ D15+15 in · +29% |
| Height | 80.2in | 55.9in | ▲ D15+24.3 in · +43% |
| Operating Weight | 4,036lb | 3,285lb | ▲ D15+751 lb · +23% |
| Spec | Allis Chalmers D15 | McCormick Intl GX40 | Difference |
|---|---|---|---|
| System Type | Not recorded | Open center | — |
| Steering Type | Power-assisted | Hydrostatic power | — |
| Spec | Allis Chalmers D15 | McCormick Intl GX40 | Difference |
|---|---|---|---|
| Hitch Type | Snap-Coupler | Not recorded | — |
| Hitch Category | II/I | I | — |
| Hitch Position | Rear | Not recorded | — |
| Spec | Allis Chalmers D15 | McCormick Intl GX40 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x2 2WD | Same |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Power-assisted | Hydrostatic power | — |
| Spec | Allis Chalmers D15 | McCormick Intl GX40 | Difference |
|---|---|---|---|
| Starter Type | Electric | 12 volt | — |
| Spec | Allis Chalmers D15 | McCormick Intl GX40 | Difference |
|---|---|---|---|
| Coolant | 2.8gal | Not recorded | — |
| Spec | Allis Chalmers D15 | McCormick Intl GX40 | Difference |
|---|---|---|---|
| Type | Open | Not recorded | — |
Category context