Massey-Harris Challenger
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| Production | |
| Manufacturer | Massey-Harris |
| Row-Crop tractor | |
| Built in Racine, Wisconsin, USA | |
| Total built | 14,000 |
| The Massey-Harris Challenger was the row-crop version of the Pacemaker. These tractors replaced the Wallis 12/20 in Massey's line. The Twin Power feature increased engine rpms to provide additional horsepower for belt work. | |
| Massey-Harris Challenger Engine | |
| Massey-Harris 4.1L 4-cyl gasoline | |
| Fuel tank | 18 gal 68.1 L |
| Aux. fuel | 1.6 gal 6.1 L |
 Engine details ... | |
| Massey-Harris Challenger Power | |
| Drawbar (claimed) | 20 hp 14.9 kW |
| Belt (claimed) | 32 hp 23.9 kW |
| Drawbar (tested) | 29.8 hp 22.2 kW |
| Belt (tested) | 34.9 hp 26.0 kW |
 Performance test details ... | |
| Mechanical | |
| Two-wheel drive | |
| Steering | manual |
| Open operator station. | |
| Dimensions & Tires | |
| Wheelbase | 78 inches 198 cm |
| Weight | 3900 lbs 1769 kg |
| Front tire | 24x4.50 |
| Rear tire | 52x8.00 |
 Full dimensions and tires ... | |
| Challenger Serial Numbers |
| Challenger Serial Location | |
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| On side of main tractor frame. |
| Page information | |
| Contact: Peter Easterlund | |
| Updated on August 19, 2022 | |
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