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Allis ChalmersModel A
Allis Chalmers 7030
Row Crop
- power
- 131 hp
- displacement
- 426 ci
- Cylinders
- 6
- Forward gears
- 20
Head to head · Row Crop
Row Crop

Row Crop
How they compare
7030 is in the 47th percentile; 7420 is in the 49th · 1,206 models
7030 is in the 72nd percentile; 7420 is in the 66th · 1,409 models
7030 is in the 50th percentile; 7420 is in the 50th · 1,417 models
7030 is in the 70th percentile; 7420 is in the 50th · 1,200 models
Full comparison
| Spec | Allis Chalmers 7030 | John Deere 7420 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | John Deere | — |
| Model | 7030 | 7420 | — |
| Category | Row Crop | Row Crop | Same |
| Spec | Allis Chalmers 7030 | John Deere 7420 | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | John Deere | — |
| Model | 3500 Mark II | PowerTech 6068HF475 | — |
| Power Output | 131hp | 135hp | ▲ 7420+4 hp · +3% |
| Rated RPM | 2,300RPM | 2,100RPM | ▲ 7030+200 RPM · +10% |
| Cylinders | 6 | 6 | Same |
| Displacement | 426ci | 414ci | ▲ 7030+12 ci · +3% |
| Bore | 4.3in | 4.2in | ▲ 7030+0.1 in · +2% |
| Stroke | 5in | 5in | Same |
| Spec | Allis Chalmers 7030 | John Deere 7420 | Difference |
|---|---|---|---|
| Type | Selective gear fixed ratio with partial range operator controlled power shifting | Partial power shift | — |
| Spec | Allis Chalmers 7030 | John Deere 7420 | Difference |
|---|---|---|---|
| Length | 163in | 203in | ▲ 7420+40 in · +25% |
| Width | 95.3in | 96in | ▲ 7420+0.7 in · <1% |
| Height | 116in | 114in | ▲ 7030+2 in · +2% |
| Operating Weight | 12,430lb | 13,280lb | ▲ 7420+850 lb · +7% |
| Spec | Allis Chalmers 7030 | John Deere 7420 | Difference |
|---|---|---|---|
| System Type | Open center | Closed-center PFC | — |
| Steering Type | Hydrostatic power | Power | — |
| Spec | Allis Chalmers 7030 | John Deere 7420 | Difference |
|---|---|---|---|
| Type | Independent | Independent with electro-hydraulic clutch | — |
| Speed 1 | 540rpm | 540rpm | Same |
| Speed 2 | 1,000rpm | 1,000rpm | Same |
| Spec | Allis Chalmers 7030 | John Deere 7420 | Difference |
|---|---|---|---|
| Hitch Category | Not recorded | Category 3 | — |
| Hitch Capacity | Not recorded | 8,960lb | — |
| Spec | Allis Chalmers 7030 | John Deere 7420 | Difference |
|---|---|---|---|
| Chassis Type | 2WD | 4x2 2WD | — |
| Drive Type | 2WD | Not recorded | — |
| Steering Type | Hydrostatic power | Power | — |
| Brake Type | Wet multiple disc brakes operated hydraulically by two-foot pedals | Hydraulic wet disc | — |
| Spec | Allis Chalmers 7030 | John Deere 7420 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric | Same |
| Spec | Allis Chalmers 7030 | John Deere 7420 | Difference |
|---|---|---|---|
| Coolant | Not recorded | 7.4gal | — |
| Spec | Allis Chalmers 7030 | John Deere 7420 | Difference |
|---|---|---|---|
| Type | Open operator station or Cab (optional) | ComfortGard Cab (standard) with air-conditioning | — |
Category context