International Harvester 674 Tests
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| Tractor Tests | |
| NTTL 1128: gasoline 8-speed 2WD | |
| NTTL 1129: diesel 8-speed 2WD |
| Nebraska Tractor Test 1128 | |||
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| Nebraska Tractor Test 1128 | |
| Gasoline 8-speed 2WD April 26 - May 17, 1973 Link: Nebraska Tractor Test 1128 file | |
| PTO performance | |
| Power at rated engine speed | 58.53 hp 43.6 kW |
| Fuel use | 5.7 gal/hour 21.6 l/hour |
| Power at rated PTO speed | 56.01 hp 41.8 kW |
| Fuel use | 5.2 gal/hour 19.7 l/hour |
| Drawbar performance | |
| Max power | 51.97 hp 38.8 kW |
| Fuel use | 5.5 gal/hour 20.8 l/hour |
| Gear 3L used for power test. | |
| Max pull | 6,583 lbs 2986 kg |
| Gear 2L used for pull test. | |
| Nebraska Tractor Test 1129 | |||
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| Nebraska Tractor Test 1129 | |
| Diesel 8-speed 2WD April 28 - May 17, 1973 Link: Nebraska Tractor Test 1129 file | |
| PTO performance | |
| Power at rated engine speed | 61.56 hp 45.9 kW |
| Fuel use | 4.1 gal/hour 15.5 l/hour |
| Power at rated PTO speed | 58.79 hp 43.8 kW |
| Fuel use | 3.9 gal/hour 14.8 l/hour |
| Drawbar performance | |
| Max power | 54.45 hp 40.6 kW |
| Fuel use | 4.0 gal/hour 15.1 l/hour |
| Gear 3L used for power test. | |
| Max pull | 6,833 lbs 3099 kg |
| Gear 2L used for pull test. | |
| Page information | |
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| Email: Peter@TractorData.com | |
| Updated on August 31, 2025 |