McCormick-Deering WD-9
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| Production | |
| Manufacturer | McCormick-Deering (a part of International Harvester) |
| Standard-tread tractor | |
| Factories | Milwaukee, Wisconsin, USA |
| Melrose Park, Illinois, USA | |
| McCormick-Deering WD-9 Engine | |
| International Harvester 5.5L 4-cyl diesel | |
| Fuel tank | 36 gal 136.3 L |
| Aux. fuel | 0.88 gal 3.3 L |
 Engine details ... | |
| McCormick-Deering WD-9 Power | |
| Drawbar (claimed) | 33 hp 24.6 kW |
| Belt (claimed) | 42 hp 31.3 kW |
| Drawbar (tested) | 42.57 hp 31.7 kW |
| Belt (tested) | 46.43 hp 34.6 kW |
 Performance test details ... | |
| Mechanical | |
| Two-wheel drive | |
| Manual steering | |
| Differential mechanical contracting band brakes | |
| Open operator station. |
| Dimensions & Tires | |
| Weight | 6650 lbs 3016 kg |
| Front tire | 30-6 |
| Rear tire | 48-12 |
 Full dimensions and tires ... | |
| WD-9 Serial Numbers | |
| Location: | Serial number plate near the fuel tank. |
| 1940 | WDCB 501 |
| 1941 | WDCB 578 |
| 1942 | WDCB 2993 |
| 1943 | WDCB 3651 |
| 1944 | WDCB 5394 |
| 1945 | WDCB 11459 |
| 1946 | WDCB 17289 |
| 1947 | WDCB 22714 |
| 1948 | WDCB 29207 |
| 1949 | WDCB 36159 |
| 1950 | WDCB 45551 |
| 1951 | WDCB 51739 |
| 1952 | WDCB 59407 |
| 1953 | WDCB 64014 |
FAQ: How to read a serial number table. | |
| Belt Pulley | |
| Diameter | 14 inches 35 cm |
| Width | 8.5 inches 21 cm |
| RPM | 707 |
| Speed | 2593 ft/min 790.35 meters/min |
| References | |
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| Farmall Letter Series Tractors by Lee Klancher | |
| McCormick-Deering Standard Tractors published in 1946, by International Harvester | |
| McCormick Standard Tractors published by International Harvester | |
| General Line Catalog published in 1949, by International Harvester |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on July 11, 2025 |