| Production | |
| Manufacturer | International Harvester |
| Built in Rock Island, Illinois, USA | |
| Total built | 347 |
| Original price was $70,500 in 1984 | |
| International Harvester 6788 Engine | |
| International Harvester 7.6L 6-cyl diesel | |
| International Harvester 6788 Transmission | |
| 12-speed two-range power shift | |
| International Harvester 6788 Power | |
| Engine | 200 hp 149.1 kW |
| Drawbar (claimed) | 142 hp 105.9 kW |
| PTO (claimed) | 170 hp 126.8 kW |
| Drawbar (tested) | 142.05 hp 105.9 kW |
| PTO (tested) | 170.57 hp 127.2 kW |
| Mechanical | |
| Four-wheel drive | |
| Articulated power steering | |
| Cab standard with burgundy finish, heat, and air-conditioning. Optional western finish interior. |
| Capacity | |
| Fuel | 89 gal 336.9 L |
|   | 139 galOptOptional 526.1 L |
| Hydraulic system | 23.6 gal 89.3 L |
| Hydraulics | |
| Type | closed center |
| Capacity | 23.6 gal 89.3 L |
| Valves | 2 to 4 |
| Pump flow | 18 gpm 68.1 lpm |
| Steering flow | 12 gpm 45.4 lpm |
| Tractor hitch | |
| Rear Type | III/II |
| Power Take-off (PTO) | |
| Rear PTO | independent |
| Rear PTO Type | 1000 |
| Dimensions & Tires | |
| Wheelbase | 110 inches 279 cm |
| Weight | 16920 lbs 7674 kg |
| Front tire | 18.4-38 |
| Rear tire | 18.4-38 |
| 6788 Serial Numbers | |
| Location: | transmission housing, right side |
| 1981 | 8801 |
| 1982 | 8810 |
| 1983 | 8840 |
| 1984 | 8871 |
| 1985 | 8946 |
FAQ: How to read a serial number table. | |
| References | |
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| 2+2 Tractors 130/150/170 HP published in 1981, by International Harvester |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on February 6, 2024 |