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International Harvester 6788

International Harvester 6788 tractor
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The International Harvester 6788 is a farm tractor produced from 1981 to 1984. It features a 7.6L 6-cylinder turbocharged diesel engine producing 200 hp, a 12-speed two-range power shift transmission, and four-wheel drive with articulated power steering. The tractor includes a standard cab with heating and air conditioning, and optional western finish interior. It has a fuel capacity of 89 gallons with an optional 139 gallons, and a hydraulic system capacity of 23.6 gallons. The 6788 is equipped with a rear independent 1000 PTO and a III/II rear hitch. Dimensions include a 110 inch wheelbase, 228.3 inch length, and 112 inch width, with a shipping weight of 16,920 lbs. Tires are 18.4-38 front and rear.
International Harvester 6788IH 6788farm tractor200 hp tractor7.6L diesel engine12-speed power shift4WD tractortractor specifications
Power200 hp
Founded1981 - 1984
Model6788

Technical Specifications

Detailed specifications and technical data for International Harvester 6788

Power

Engine:200 hp (149.1 kW)
PTO (tested):170.57 hp (127.2 kW)
PTO (claimed):170 hp (126.8 kW)
Drawbar (tested):142.05 hp (105.9 kW)
Drawbar (claimed):142 hp (105.9 kW)

Engine

Type:turbocharged diesel
Model:International Harvester DT 466B
Power:200 hp (149.1 kW)
Cooling:liquid-cooled
Cylinders:6-cylinder
Rated RPM:2500
Bore/Stroke:4.30x5.35 inches (109 x 136 mm)
Displacement:466 ci (7.6 L)
Oil capacity:20 qts (18.9 L)
Coolant capacity:34 qts (32.2 L)

Capacity

Fuel:89 gal (336.9 L), 139 gal Optional (526.1 L)
Hydraulic system:23.6 gal (89.3 L)

Hydraulics

Type:closed center
Valves:2 to 4
Capacity:23.6 gal (89.3 L)
Pump flow:18 gpm (68.1 lpm)
Steering flow:12 gpm (45.4 lpm)

Mechanical

Cab:Standard with burgundy finish, heat, and air-conditioning. Optional western finish interior.
Drive:Four-wheel drive
Steering:Articulated power steering

Production

Built in:Rock Island, Illinois, USA
Total built:347
Manufacturer:International Harvester
Original price:$70,500 in 1984
Years produced:1981 - 1984

Transmission

Type:two-range power shift
Gears:12 forward and 6 reverse
Details: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.
Oil capacity:94.5 qts (89.4 L)

Tractor hitch

Rear Type:III/II

Dimensions & Tires

Width:112 inches (284 cm)
Length:228.3 inches (579 cm)
Rear tire:18.4-38
Wheelbase:110 inches (279 cm)
Cab height:114.1 inches (289 cm)
Front tire:18.4-38
Hood height:79.9 inches (202 cm)
Exhaust height:125.4 inches (318 cm)
Shipping weight:16920 lbs (7674 kg)
Ground clearance:28.4 inches (72 cm)

Power Take-off (PTO)

Rear PTO:independent
Rear PTO Type:1000

Related Models

International Harvester 6588

Model:6588

International Harvester 3788

Model:3788