Ford 641 Tests
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| Nebraska Tractor Test 642 | |||
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| Nebraska Tractor Test 642 | |
| Gasoline 12-speed 2WD March 20 - 31, 1958 Link: Nebraska Tractor Test 642 file | |
| Belt power (max) | 33.65 hp 25.1 kW |
| Belt fuel use (max) | 3.4 gal/hour 12.9 l/hour |
| Drawbar performance | |
| Max power | 29.82 hp 22.2 kW |
| Gear 5 used for power test. | |
| Max pull | 4,101 lbs 1860 kg |
| Gear 1 used for pull test. | |
| Nebraska Tractor Test 686 | |||
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| Nebraska Tractor Test 686 | |
| Diesel 12-speed 2WD March 11 - 18, 1959 Link: Nebraska Tractor Test 686 file | |
| PTO performance | |
| Power at rated engine speed | 31.78 hp 23.7 kW |
| Fuel use | 2.2 gal/hour 8.3 l/hour |
| Power at rated PTO speed | 25.29 hp 18.9 kW |
| Fuel use | 1.8 gal/hour 6.8 l/hour |
| Drawbar performance | |
| Max power | 29.33 hp 21.9 kW |
| Fuel use | 2.3 gal/hour 8.7 l/hour |
| Gear 5 used for power test. | |
| Max pull | 4,230 lbs 1918 kg |
| Gear 1 used for pull test. | |
| Page information | |
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| Email: Peter@TractorData.com | |
| Updated on September 29, 2025 |