Tractor · 1981Unverified
International Harvester 6788
International Harvester 6788 — 60 2+2 Series · 171 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
171 hp
Max power
105.9 kW
Weight
7674 kg
Hover a source tag to verify
Overview
ManufacturerInternational HarvesterReference
Built in Rock Island, Illinois, USAReference
Total built347Reference
Original price was $70,500 in 1984Reference
Four-wheel driveReference
Articulated power steeringReference
Cab standard with burgundy finish, heat, and air-conditioning. Optional western finish interior.Reference
Engine
International Harvester 7.6L 6-cyl dieselReference
Engine149.1 kWReference
Drawbar (claimed)105.9 kWReference
Drawbar (tested)105.9 kWReference
International Harvester DT 466BReference
turbocharged dieselReference
6-cylinderReference
liquid-cooledReference
Displacement7.6 LReference
Bore/Stroke109 x 136 mmReference
Power149.1 kWReference
Rated RPM2500Reference
Oil capacity18.9 LReference
Coolant capacity32.2 LReference
Power at rated engine speed127.2 kWReference
Max power105.9 kWReference
Transmission
12-speed two-range power shiftReference
Typetwo-range power shiftReference
Gears12 forward and 6 reverseReference
Oil capacity89.4 LReference
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.Reference
PTO & Hydraulics
PTO (claimed)126.8 kWReference
PTO (tested)127.2 kWReference
Hydraulic system89.3 LReference
Typeclosed centerReference
Capacity89.3 LReference
Valves2 to 4Reference
Pump flow68.1 lpmReference
Steering flow45.4 lpmReference
Rear TypeIII/IIReference
Rear PTOindependentReference
Rear PTO Type1000Reference
Power at rated PTO speed124.1 kWReference
Capacities
Fuel336.9 LReference
Fuel526.1 LReference
Dimensions
Wheelbase279 cmReference
Weight7674 kgReference
Front tire18.4-38Reference
Rear tire18.4-38Reference
Ag front18.4-38Reference
Ag rear18.4-38Reference
Length579 cmReference
Width284 cmReference
Shipping weight7674 kgReference
Ground clearance72 cmReference
Bar rear axle82 mmReference
6788 Serial Numbers
Location:transmission housing, right sideReference
19818801Reference
19828810Reference
19838840Reference
19848871Reference
19858946Reference
FAQ: How to read a serial number table.Reference
International Harvester 6788 Height
Hood202 cmReference
Cab289 cmReference
Exhaust318 cmReference
Test results
Diesel 12-speed 4WDNovember 5 - 17, 1980Link: Nebraska Tractor Test 1377 fileReference
PTO performanceReference
Fuel use41.3 l/hourReference
Fuel use36.7 l/hourReference
Drawbar performanceReference
Fuel use40.5 l/hourReference
Gear 3-Low-Direct used for power test.Reference
Max pull8649 kgReference
Gear 1-Low-Direct used for pull test.Reference
Speeds
With 18.4-38 tires.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.