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International Harvester 3788

International Harvester 3788 tractor
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The International Harvester 3788 is a four-wheel drive (4WD) farm tractor produced from 1980 to 1981 as part of the 30 2+2 Series. It features a turbocharged 7.6L 6-cylinder diesel engine (DT-466B) delivering an estimated 167.1 hp engine power, with claimed drawbar power of 146 hp and PTO power of 170.57 hp. The tractor includes a 12-speed two-range power shift transmission with a torque amplifier and hydrostatic power steering. It has a closed center hydraulic system with 2 valves and a 12 gpm pump flow. The 3788 rides on 18.4-38 tires front and rear, with a wheelbase of 110 inches and operating weight around 18,620 lbs. Standard features include a cab, hydraulic wet disc brakes, and an independent 1000 RPM rear PTO. Total production was 2,496 units, with an original price of $57,000 in 1981.
International Harvester 3788IH 3788farm tractor4WD tractor7.6L diesel engine12-speed power shifttractor specs
Power189 hp[P]
Founded1980 - 1981
Model3788

Technical Specifications

Detailed specifications and technical data for International Harvester 3788

Power

PTO (tested):170.57 hp (127.2 kW)
PTO (claimed):170.57 hp (127.2 kW)
Drawbar (tested):142.05 hp (105.9 kW)
Drawbar (claimed):146 hp (108.9 kW)

Tires

Ag rear:18.4-38
Ag front:18.4-38

Engine

Type:turbocharged diesel
Model:International Harvester DT-466B
Cooling:liquid-cooled
Idle RPM:780-2750
Cylinders:6-cylinder
Fuel tank:90 gal (340.7 L)
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)
Starter volts:12
Coolant capacity:34 qts (32.2 L)

Weight

Shipping:16520 lbs (7493 kg)
Operating:18620 lbs (8446 kg)
Max capacity:23500 lbs (10659 kg)

Dimensions

Width:101.6 inches (258 cm)
Length:228 inches (579 cm)
Wheelbase:110 inches (279 cm)
Height (cab):115.8 inches (294 cm)
Clearance (rear axle):26.7 inches (67 cm)
Clearance (front axle):23.2 inches (58 cm)

Electrical

Ground:negative
Batteries:2
Battery volts:12
Charging amps:72
Charging system:alternator

Hydraulics

Type:closed center
Valves:2
Pump flow:12 gpm (45.4 lpm)

Mechanical

Cab:standard
Brakes:Hydraulic wet disc brakes
Steering:hydrostatic power
Four-wheel drive:Yes

Production

Type:Four-wheel Drive (4WD) tractor
Series:30 2+2 Series
Total built:2,496
Manufacturer:International Harvester
Original price:$57,000 in 1981
Years produced:1980 - 1981

Transmission

Type:two-range power shift
Gears:12 forward and 6 reverse
Clutch:356mm hydraulic dry disc
Transmission:Torque Amplifier

Tractor hitch

Rear Type:III

Power Take-off (PTO)

Rear PTO:independent
Engine RPM:1000@2100
Rear PTO Type:1000

Related Models

International Harvester 6788

Model:6788

International Harvester 3588

Model:3588