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Allis ChalmersModel A
Allis Chalmers 440
Utility
- power
- 218 hp
- displacement
- 555 ci
- Cylinders
- 8
- Forward gears
- 10
Head to head · Utility
Utility

Utility
How they compare
440 is in the 94th percentile; HD3 is in the 46th · 5,580 models
440 is in the 99th percentile; HD3 is in the 50th · 5,720 models
440 is in the 39th percentile; HD3 is in the 23rd · 4,941 models
440 is in the 95th percentile; HD3 is in the 73rd · 5,107 models
Full comparison
| Spec | Allis Chalmers 440 | Allis Chalmers HD3 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | Allis Chalmers | Same |
| Model | 440 | HD3 | — |
| Category | Utility | Utility | Same |
| Spec | Allis Chalmers 440 | Allis Chalmers HD3 | Difference |
|---|---|---|---|
| Manufacturer | Cummins | Allis Chalmers | — |
| Model | 555C | Not recorded | — |
| Power Output | 218hp | Not recorded | — |
| Rated RPM | 2,800RPM | 1,650RPM | ▲ 440+1,150 RPM · +70% |
| Cylinders | 8 | 4 | ▲ 440+4 · +100% |
| Displacement | 555ci | 175ci | ▲ 440+380 ci · +217% |
| Bore | 4.6in | 3.6in | ▲ 440+1 in · +28% |
| Stroke | 4.1in | 4.4in | ▲ HD3+0.3 in · +7% |
| Spec | Allis Chalmers 440 | Allis Chalmers HD3 | Difference |
|---|---|---|---|
| Type | Eaton | Two-speed power shift, mechanical shuttle | — |
| Spec | Allis Chalmers 440 | Allis Chalmers HD3 | Difference |
|---|---|---|---|
| Length | 228in | 109in | ▲ 440+119 in · +109% |
| Width | 105in | Not recorded | — |
| Height | 139in | 48.3in | ▲ 440+90.7 in · +188% |
| Operating Weight | 20,230lb | 7,645lb | ▲ 440+12,585 lb · +165% |
| Spec | Allis Chalmers 440 | Allis Chalmers HD3 | Difference |
|---|---|---|---|
| System Type | Open center | Open Center | Same |
| Steering Type | Articulated hydraulic power | Mechanical clutches | — |
| Spec | Allis Chalmers 440 | Allis Chalmers HD3 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | III/IV | Not recorded | — |
| Spec | Allis Chalmers 440 | Allis Chalmers HD3 | Difference |
|---|---|---|---|
| Chassis Type | 4x4 articulated 4WD | Not recorded | — |
| Drive Type | MFWD 4WD | Not recorded | — |
| Steering Type | Articulated hydraulic power | Mechanical clutches | — |
| Brake Type | Hydraulic disc | Not recorded | — |
| Spec | Allis Chalmers 440 | Allis Chalmers HD3 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers 440 | Allis Chalmers HD3 | Difference |
|---|---|---|---|
| Coolant | Not recorded | 2.3gal | — |
| Spec | Allis Chalmers 440 | Allis Chalmers HD3 | Difference |
|---|---|---|---|
| Type | Cab | Not recorded | — |
Category context