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McCormick-DeeringModel A
McCormick-Deering O-6
Agricultural
- power
- Not recorded
- displacement
- 248 ci
- Cylinders
- 4
- Forward gears
- 5
Head to head · Agricultural
Agricultural

Agricultural
How they compare
O-6 is in the 29th percentile; TA-40 is in the 43rd · 1,083 models
O-6 is in the 31st percentile; TA-40 is in the 74th · 1,130 models
O-6 is in the 7th percentile; TA-40 is in the 7th · 972 models
O-6 is in the 14th percentile; TA-40 is in the 50th · 971 models
Full comparison
| Spec | McCormick-Deering O-6 | McCormick-Deering TA-40 | Difference |
|---|---|---|---|
| Manufacturer | McCormick-Deering | McCormick-Deering | Same |
| Model | O-6 | TA-40 | — |
| Category | Agricultural, Orchard/Vineyard | Agricultural | — |
| Spec | McCormick-Deering O-6 | McCormick-Deering TA-40 | Difference |
|---|---|---|---|
| Manufacturer | International Harvester | International Harvester | Same |
| Rated RPM | 1,450RPM | 1,600RPM | ▲ TA-40+150 RPM · +10% |
| Cylinders | 4 | 6 | ▲ TA-40+2 · +50% |
| Displacement | 248ci | 279ci | ▲ TA-40+31 ci · +13% |
| Bore | 3.9in | 3.6in | ▲ O-6+0.3 in · +8% |
| Stroke | 5.3in | 4.5in | ▲ O-6+0.8 in · +18% |
| Spec | McCormick-Deering O-6 | McCormick-Deering TA-40 | Difference |
|---|---|---|---|
| Type | Gear | Gear | Same |
| Spec | McCormick-Deering O-6 | McCormick-Deering TA-40 | Difference |
|---|---|---|---|
| Length | 133in | 141in | ▲ TA-40+8 in · +6% |
| Width | 65in | 65in | Same |
| Height | 63.5in | 65in | ▲ TA-40+1.5 in · +2% |
| Operating Weight | 5,310lb | 10,790lb | ▲ TA-40+5,480 lb · +103% |
| Spec | McCormick-Deering O-6 | McCormick-Deering TA-40 | Difference |
|---|---|---|---|
| Steering Type | Manual | Not recorded | — |
| Spec | McCormick-Deering O-6 | McCormick-Deering TA-40 | Difference |
|---|---|---|---|
| Front Tire Size | 6.00-16 | Not recorded | — |
| Rear Tire Size | 13-26 | Not recorded | — |
| Spec | McCormick-Deering O-6 | McCormick-Deering TA-40 | Difference |
|---|---|---|---|
| Hitch Category | Not recorded | Category 3 | — |
| Spec | McCormick-Deering O-6 | McCormick-Deering TA-40 | Difference |
|---|---|---|---|
| Chassis Type | 4x2 2WD | Not recorded | — |
| Drive Type | 2WD | Not recorded | — |
| Steering Type | Manual | Not recorded | — |
| Spec | McCormick-Deering O-6 | McCormick-Deering TA-40 | Difference |
|---|---|---|---|
| Coolant | Not recorded | 12gal | — |
Category context