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Allis ChalmersModel A
Allis Chalmers 620
Utility
- power
- 19.5 hp
- displacement
- 49.8 ci
- Cylinders
- 2
- Forward gears
- Not recorded
Head to head · Utility
Utility

Row Crop
How they compare
620 is in the 8th percentile; FG is in the 8th · 5,383 models
620 is in the 3rd percentile; FG is in the 30th · 5,580 models
620 is in the 3rd percentile; FG is in the 50th · 5,720 models
620 is in the 6th percentile; FG is in the 35th · 5,107 models
Full comparison
| Spec | Allis Chalmers 620 | International Harvester FG | Difference |
|---|---|---|---|
| Manufacturer | Allis Chalmers | International Harvester | — |
| Model | 620 | FG | — |
| Category | Utility, Sub-Compact | Row Crop | — |
| Spec | Allis Chalmers 620 | International Harvester FG | Difference |
|---|---|---|---|
| Manufacturer | Onan | International Harvester | — |
| Model | CCKB | 2.0L 4-cyl kerosene | — |
| Power Output | 19.5hp | 20hp | ▲ FG+0.5 hp · +3% |
| Rated RPM | 3,600RPM | 1,650RPM | ▲ 620+1,950 RPM · +118% |
| Cylinders | 2 | 4 | ▲ FG+2 · +100% |
| Displacement | 49.8ci | 125ci | ▲ FG+75.2 ci · +151% |
| Bore | 3.3in | 3.2in | ▲ 620+0.2 in · +6% |
| Stroke | 3in | 4in | ▲ FG+1 in · +33% |
| Spec | Allis Chalmers 620 | International Harvester FG | Difference |
|---|---|---|---|
| Type | Hydrostatic | Gear | — |
| Spec | Allis Chalmers 620 | International Harvester FG | Difference |
|---|---|---|---|
| Length | 82.7in | Not recorded | — |
| Width | 47.6in | Not recorded | — |
| Height | 42.9in | Not recorded | — |
| Operating Weight | 1,499lb | 3,860lb | ▲ FG+2,361 lb · +158% |
| Spec | Allis Chalmers 620 | International Harvester FG | Difference |
|---|---|---|---|
| Steering Type | Not recorded | Manual | — |
| Spec | Allis Chalmers 620 | International Harvester FG | Difference |
|---|---|---|---|
| Speed 1 | 2,000rpm | Not recorded | — |
| Speed 2 | 2,000rpm | Not recorded | — |
| Spec | Allis Chalmers 620 | International Harvester FG | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | 4x2 2WD | Same |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Not recorded | Manual | — |
| Spec | Allis Chalmers 620 | International Harvester FG | Difference |
|---|---|---|---|
| Starter Type | Electric | Hand-crank | — |
| Spec | Allis Chalmers 620 | International Harvester FG | Difference |
|---|---|---|---|
| Type | Open | Not recorded | — |
Category context