Specifications
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| Model information | |
| Production years | 1935 - 1940 |
| Equipment type | Standard-tread tractor |
| Production | |
| Manufacturer | McCormick-Deering (a part of International Harvester) |
| Equipment type | Standard-tread tractor |
| Built in | Built in Milwaukee, Wisconsin, USA |
| Notes | The W-40 paint color changed from grey to red on November 1, 1936. |
| McCormick-Deering W-40 Engines | |
| Engine | International Harvester 4.9L 6-cyl gasoline International Harvester 4.9L 6-cyl kerosene International Harvester 4.0L 6-cyl gasoline |
| Fuel tank | 31 gal 117.3 L |
| Aux. fuel | 1.25 gal 4.7 L |
| Details | Engine details ... |
| McCormick-Deering W-40 Transmissions | |
| Transmission | 3-speed unsynchronized gear 4-speed unsynchronized gear |
| Details | Transmission details ... |
| McCormick-Deering W-40 Power | |
| Drawbar (claimed) | 28 hp 20.9 kW |
| Belt (claimed) | 45 hp 33.6 kW |
| Drawbar (tested) | 35.22 hp 26.3 kW |
| Belt (tested) | 49.76 hp 37.1 kW |
| Details | Performance test details ... |
| Mechanical | |
| Drive | Two-wheel drive |
| Final drives | bull gear |
| Steering | Manual steering |
| Cab / ROPS | Open operator station. |
| Power Take-off (PTO) | |
| Rear PTO Type | 553 |
| Dimensions & Tires | |
| Wheelbase | 85 inches 215 cm |
| Weight | 6100 lbs 2766 kg |
| Front tire | 34x6 |
| Rear tire | 50x12 |
| Details | Full dimensions and tires ... |
| W-40 Serial Numbers | |
| 1935 | 501 |
| 1936 | 1441 |
| 1937 | 5120 |
| 1938 | 7665 |
| 1939 | 9756 |
| 1940 | 10323 |
| Details | FAQ: How to read a serial number table. |
| Belt Pulley | |
| Diameter | 15.7 inches 39 cm |
| Width | 9 inches 22 cm |
| RPM | 645 |
| Speed | 2647 ft/min 806.81 meters/min |
| References | |
| Publication | Instruction Book Model W-40 (5097) published in 1937 |
Values may vary by engine, transmission or configuration. View source page
Model family
Series map
- W-3027.8 hp*
- W-40 Current model50.0 hp*
*Estimated engine power for comparison only.