Image not recorded
FarmallModel A
Farmall 1566
Row Crop
- power
- Not recorded
- displacement
- 436 ci
- Cylinders
- 6
- Forward gears
- 12
Head to head · Row Crop
Row Crop

Standard Tread
How they compare
1566 is in the 75th percentile; TD-40 is in the 81st · 1,409 models
1566 is in the 50th percentile; TD-40 is in the 17th · 1,417 models
1566 is in the 27th percentile; TD-40 is in the 7th · 1,200 models
1566 is in the 54th percentile; TD-40 is in the 49th · 1,350 models
Full comparison
| Spec | Farmall 1566 | McCormick-Deering TD-40 | Difference |
|---|---|---|---|
| Manufacturer | Farmall | McCormick-Deering | — |
| Model | 1566 | TD-40 | — |
| Category | Row Crop | Standard Tread | — |
| Spec | Farmall 1566 | McCormick-Deering TD-40 | Difference |
|---|---|---|---|
| Manufacturer | International Harvester | International Harvester | Same |
| Model | DT-436 | Not recorded | — |
| Rated RPM | 2,600RPM | 1,200RPM | ▲ 1566+1,400 RPM · +117% |
| Cylinders | 6 | 4 | ▲ 1566+2 · +50% |
| Displacement | 436ci | 461ci | ▲ TD-40+25 ci · +6% |
| Bore | 4.3in | 4.8in | ▲ TD-40+0.5 in · +12% |
| Stroke | 5in | 6.5in | ▲ TD-40+1.5 in · +30% |
| Spec | Farmall 1566 | McCormick-Deering TD-40 | Difference |
|---|---|---|---|
| Type | Two-speed power shift | Not recorded | — |
| Spec | Farmall 1566 | McCormick-Deering TD-40 | Difference |
|---|---|---|---|
| Length | Not recorded | 140in | — |
| Width | Not recorded | 63.8in | — |
| Height | Not recorded | 82.5in | — |
| Operating Weight | 12,870lb | 12,080lb | ▲ 1566+790 lb · +7% |
| Spec | Farmall 1566 | McCormick-Deering TD-40 | Difference |
|---|---|---|---|
| System Type | Open Center | Not recorded | — |
| Spec | Farmall 1566 | McCormick-Deering TD-40 | Difference |
|---|---|---|---|
| Hitch Type | Three-Point Hitch | Not recorded | — |
| Hitch Category | III | Not recorded | — |
| Hitch Position | Rear | Not recorded | — |
| Spec | Farmall 1566 | McCormick-Deering TD-40 | Difference |
|---|---|---|---|
| Coolant | 6.5gal | 15gal | ▲ TD-40+8.5 gal · +131% |
| Spec | Farmall 1566 | McCormick-Deering TD-40 | Difference |
|---|---|---|---|
| Type | Open | Not recorded | — |
Category context