Farmall 340
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| Production | |
| Manufacturer | Farmall (a part of International Harvester) |
| Row-Crop tractor | |
| Built in Rock Island, Illinois, USA | |
| Variants | |
| IH 340 | utility |
| Farmall 340 | row-crop |
| T-340 | crawler |
| International 340 | industrial |
| Farmall 340 Engines | |
| International Harvester 2.2L 4-cyl gasoline | |
| International Harvester 2.7L 4-cyl diesel | |
| Fuel tank | 15 gal (gasoline) 56.8 L |
| 23 gal (LP-gas) 87.1 L | |
 Engine details ... | |
| Farmall 340 Transmissions | |
| 5-speed sliding gear | |
| 10-speed two-speed power shift | |
 Transmission details ... |
| Farmall 340 Power | |
| Engine | 47 hp 35.0 kW |
| Drawbar (claimed) | 31.5 hp 23.5 kW |
| Belt (claimed) | 35 hp 26.1 kW |
| Drawbar (tested) | 36.14 hp 26.9 kW |
| PTO (tested) | 38.93 hp 29.0 kW |
| Belt (tested) | 34.74 hp 25.9 kW |
 Performance test details ... | |
| Mechanical | |
| Two-wheel drive | |
| Steering | manual |
| Differential mechanical dry disc brakes | |
| Open operator station. | |
| Photos | |
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 Farmall 340 photos... | |
| Hydraulics | |
| Type | open center |
| Pressure | 1500 psi 103.4 bar |
| Pump flow | 9 gpm 34.1 lpm |
| 12.5 gpm*Pump with independent PTO. 47.3 lpm | |
| Power Take-off (PTO) | |
| Rear PTO | transmission |
| independent OptOptional | |
| Rear PTO Type | 540 (1.375) |
| Engine RPM | 540@1750 |
| Dimensions & Tires | |
| Wheelbase | 79.6 inches 202 cm |
| Weight | 4250 to 5195 pounds |
| Front tire | 5-15 |
| Rear tire | 12.4-36 |
 Full dimensions and tires ... | |
| Farmall 340 attachments | |
| front-end loader | |
 Attachment details ... |
| 340 Serial Number Location | |
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| Clutch housing, right side |
| 340 Serial Numbers | |
| 1958 | 501 |
| 1959 | 2723 |
| 1960 | 5411 |
| 1961 | 6642 |
| 1962 | 7276 |
| 1963 | 7677 |
| Final | ? |
FAQ: How to read a serial number table. | |
| Belt Pulley | |
| Diameter | 11 inches 27 cm |
| RPM | 2000 |
| Speed | 3115 ft/min 949.45 meters/min |
| References | |
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| Farm Loaders published in 1962, by International Harvester | |
| McCormick Farmall 340 Tractor published in 1958, by International Harvester | |
| Direct-Start Diesel Tractors published in 1958, by International Harvester |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on March 5, 2025 |