History Of The International Harvester 6788 - 2 + 2 Tractor
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Years in Production / 1981–1984
International Harvester
6788
Explore the specifications, hardware, and original references for the International Harvester 6788.
No photo
200hp
Source index power
4x4 Only
Drive
1981–1984
Production years
International Harvester
Manufacturer
6788 / 01
At a glance
Overview
1981 - 1984
60 2+2 Series
Production
Built in Rock Island, Illinois, USA
Original price was $70,500 in 1984
- Manufacturer
- International Harvester
- Total Built
- 347
Mechanical
Four-wheel drive
Articulated power steering
Cab standard with burgundy finish, heat, and air-conditioning. Optional western finish interior.
Capacity
- Fuel
- 89 gal336.9 L
- Fuel
- 139 galOptOptional526.1 L
- Hydraulic System
- 23.6 gal89.3 L
Hydraulics
- Type
- closed center
- Capacity
- 23.6 gal89.3 L
- Valves
- 2 to 4
- Pump Flow
- 18 gpm68.1 lpm
- Steering Flow
- 12 gpm45.4 lpm
Hitch
- Rear Type
- III/II
Pto
- Rear Pto
- independent
- Rear Type
- 1000
6788 / 02
Under the hood
Engine Detail
International Harvester DT 466B
turbocharged diesel
6-cylinder
liquid-cooled
- Displacement
- 466 ci7.6 L
- Bore Stroke
- 4.30x5.35 inches109 x 136 mm
- Power
- 200 hp149.1 kW
- Rated Rpm
- 2500
- Oil Capacity
- 20 qts18.9 L
- Coolant Capacity
- 34 qts32.2 L
- Cylinders
- 6
- Cooling
- liquid-cooled
Engine Options
International Harvester 7.6L 6-cyl diesel
6788 / 03
Gears & controls
Transmission
Left lever selects high, low, or reverse range. Right lever selects gear. On-the-move power shift without the clutch between gear pairs 1/2, 3/4, and 5/6. Synchronized shift (with the clutch) from 2-to-3 and 4-to-5.
- Transmission Type
- two-range power shift
- Gears
- 12 forward and 6 reverse
- Oil Capacity
- 94.5 qts89.4 L
- Speeds Description
- With 18.4-38 tires.
International Harvester6788 Transmission
12-speed two-range power shift
6788 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 228.3 in579 cm
- Width
- 112 in284 cm
- Height (cab)
- 114.1 in289 cm
- Wheelbase
- 110 in279 cm
- Ground clearance
- 28.4 in72 cm
Dimensions And Tires
- Wheelbase
- 110 inches279 cm
- Weight
- 16920 lbs7674 kg
- Front Tire
- 18.4-38
- Rear Tire
- 18.4-38
Tires And Tracks
- Front Ag
- 18.4-38
- Rear Ag
- 18.4-38
See it in action
Videos
Watch International Harvester 6788 videos from their original YouTube creators.
6788 / 06
Tests (NTTL)
Nebraska Tractor Test 1377
Diesel 12-speed 4WDNovember 5 - 17, 1980
PTO performance
Drawbar performance
Gear 3-Low-Direct used for power test.
Gear 1-Low-Direct used for pull test.
- Id
- 1377
- Power At Rated Engine Speed
- 170.57 hp127.2 kW
- Fuel Use
- 10.9 gal/hour41.3 l/hour
- Fuel Use
- 9.7 gal/hour36.7 l/hour
- Fuel Use
- 10.7 gal/hour40.5 l/hour
- Power At Rated Pto Speed
- 166.39 hp124.1 kW
- Max Power
- 142.05 hp105.9 kW
- Max Pull
- 19069 lbs8649 kg