McCormick-Deering O-12
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| Production | |
| Manufacturer | McCormick-Deering (a part of International Harvester) |
| Orchard/Vineyard tractor | |
| Built in Chicago, Illinois, USA | |
| McCormick-Deering O-12 Engine | |
| International Harvester 1.9L 4-cyl distillate | |
| Fuel tank | 11 gal 41.6 L |
| Aux. fuel | 0.75 gal 2.8 L |
 Engine details ... | |
| McCormick-Deering O-12 Transmission | |
| 3-speed unsynchronized gear | |
 Transmission details ... |
| McCormick-Deering O-12 Power | |
| Belt (claimed) | 18.9 hp 14.1 kW |
| Mechanical | |
| Two-wheel drive | |
| Manual steering | |
| Open operator station. |
| Power Take-off (PTO) | |
| Rear PTO Type | 540 |
| Dimensions & Tires | |
| Weight | 3200 lbs 1451 kg |
| Front tire | 6.00-9 |
| Rear tire | 9.00-24 |
 Full dimensions and tires ... | |
| O-12 Serial Numbers | |
| 1933 | OS-501 |
| 1934 | OS-512 |
| 1935 | OS-1164 |
| 1936 | OS-1771 |
| 1937 | OS-2443 |
| 1938 | OS-3261 |
FAQ: How to read a serial number table. | |
| Belt Pulley | |
| Diameter | 13.25 inches 33 cm |
| Width | 6.25 inches 15 cm |
| RPM | 748 |
| Speed | 2593 ft/min 790.35 meters/min |
| References | |
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| McCormick-Deering Tractors - Modern Agricultural Power published in 1933, by International Harvester |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on June 15, 2017 |