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FarmallModel A
Farmall 100
Row Crop
- power
- Not recorded
- displacement
- 123 ci
- Cylinders
- 4
- Forward gears
- 4
Head to head · Row Crop
Row Crop

Row Crop
How they compare
100 is in the 2nd percentile; 81 is in the 2nd · 1,409 models
100 is in the 17th percentile; 81 is in the 17th · 1,417 models
100 is in the 4th percentile; 81 is in the 4th · 1,200 models
100 is in the 2nd percentile; 81 is in the 2nd · 1,350 models
Full comparison
| Spec | Farmall 100 | Massey-Harris 81 | Difference |
|---|---|---|---|
| Manufacturer | Farmall | Massey-Harris | — |
| Model | 100 | 81 | — |
| Category | Row Crop | Row Crop | Same |
| Spec | Farmall 100 | Massey-Harris 81 | Difference |
|---|---|---|---|
| Manufacturer | International Harvester | Continental | — |
| Model | C-123 | F124 | — |
| Rated RPM | 1,400RPM | 1,500RPM | ▲ 81+100 RPM · +7% |
| Cylinders | 4 | 4 | Same |
| Displacement | 123ci | 124ci | ▲ 81+1 ci · <1% |
| Bore | 3.1in | 3in | ▲ 100+0.1 in · +3% |
| Stroke | 4in | 4.4in | ▲ 81+0.4 in · +10% |
| Spec | Farmall 100 | Massey-Harris 81 | Difference |
|---|---|---|---|
| Type | Gear | Unsynchronized gear | — |
| Spec | Farmall 100 | Massey-Harris 81 | Difference |
|---|---|---|---|
| Length | 107in | 119in | ▲ 81+12 in · +11% |
| Width | 56in | Not recorded | — |
| Height | 65.5in | 58in | ▲ 100+7.5 in · +13% |
| Operating Weight | 3,000lb | 2,895lb | ▲ 100+105 lb · +4% |
| Spec | Farmall 100 | Massey-Harris 81 | Difference |
|---|---|---|---|
| System Type | Open center | Not recorded | — |
| Steering Type | Manual | Manual | Same |
| Spec | Farmall 100 | Massey-Harris 81 | Difference |
|---|---|---|---|
| Type | Optional Transmission or Live PTO | Not recorded | — |
| Speed 1 | 540rpm | Not recorded | — |
| Spec | Farmall 100 | Massey-Harris 81 | Difference |
|---|---|---|---|
| Hitch Type | IH Fast Hitch | Not recorded | — |
| Hitch Category | Category 3 | Not recorded | — |
| Hitch Position | Rear | Not recorded | — |
| Spec | Farmall 100 | Massey-Harris 81 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 | 4x2 2WD | — |
| Drive Type | 2WD | 2WD | Same |
| Steering Type | Manual | Manual | Same |
| Brake Type | Contracting band | Not recorded | — |
| Spec | Farmall 100 | Massey-Harris 81 | Difference |
|---|---|---|---|
| Starter Type | Electric | Electric Starter | — |
| Spec | Farmall 100 | Massey-Harris 81 | Difference |
|---|---|---|---|
| Coolant | Not recorded | 2.8gal | — |
| Spec | Farmall 100 | Massey-Harris 81 | Difference |
|---|---|---|---|
| Type | Open operator station | Not recorded | — |
Category context