Diesel 12-speed 4WD November 5 - 17, 1980 Link: Nebraska Tractor Test 1377 file PTO performance Drawbar performance Gear 3-Low-Direct used for power test Gear 1-Low-Direct used for pull test
Power at rated engine speed
170.57hp / 127.2kW
Fuel use
10.7gal/hour / 40.5l/hour
Power at rated PTO speed
166.39hp / 124.1kW
Max power
142.05hp / 105.9kW
Max pull
19069lbs / 8649kg
INTERNATIONAL HARVESTER 6788 POWER
Engine
200hp / 149.1kW
Drawbar (claimed)
142hp / 105.9kW
PTO (claimed)
170hp / 126.8kW
Drawbar (tested)
142.05hp / 105.9kW
PTO (tested)
170.57hp / 127.2kW
ENGINE DETAIL
Description
International Harvester DT 466B turbocharged diesel 6-cylinder liquid-cooled
Displacement
466ci / 7.6L
Bore/Stroke
4.30x5.35inches / 109x 136mm
Power
200hp / 149.1kW
Rated RPM
2500
Oil capacity
20qts / 18.9L
Coolant capacity
34qts / 32.2L
INTERNATIONAL HARVESTER 6788 ENGINE
Description
International Harvester 7.6L 6-cyl diesel
TRANSMISSION
Type
two-range power shift
Gears
12 forward and 6 reverse
Oil capacity
94.5qts / 89.4L
Description
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
SPEEDS
Description
With 18.4-38 tires
MECHANICAL
Chassis
4x4 articulated 4WD
Steering
articulated power
Cab
Cab standard with burgundy finish, heat, and air-conditioning. Optional western finish interior
Transmission
12-speed two-range power shift
CAPACITY
Fuel
89gal / 336.9L 139gal / 526.1L
Hydraulic system
23.6gal / 89.3L
HYDRAULICS
Capacity
23.6gal / 89.3L
Valves
2 to 4
Pump flow
18gpm / 68.1lpm
Steering flow
12gpm / 45.4lpm
TRACTOR HITCH
Rear Type
III/II
POWER TAKE-OFF (PTO)
Rear PTO
independent
Rear RPM
1000
INTERNATIONAL HARVESTER 6788 TIRES
Ag front
18.4-38
Ag rear
18.4-38
DIMENSIONS
Wheelbase
110inches / 279cm
Length
228.3inches / 579cm
Width
112inches / 284cm
Shipping weight
16920lbs / 7674kg
Ground clearance
28.4inches / 72cm
INTERNATIONAL HARVESTER 6788 HEIGHT
Hood
79.9inches / 202cm
Cab
114.1inches / 289cm
Exhaust
125.4inches / 318cm
DIMENSIONS & TIRES
Wheelbase
110inches / 279cm
Weight
16920lbs / 7674kg
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
About International Harvester Tractor
The International Harvester 6788 tractor is part of the company's 60 2 plus 2 Series. The 6788 is a type, which is used mostly in Agriculture Tractors. The 6788 tractor is operated by a engine. This arrangement is more practical in the actual world.