International Harvester

International Harvester 6388

The International Harvester 6388 is a farm tractor produced from 1981 to 1984 as part of the 60 2+2 Series. It features a 7.1L 6-cylinder turbocharged diesel engine producing 157 hp, a 16-speed two-range power shift transmission, and four-wheel drive with articulated hydrostatic power steering. The tractor includes a standard cab with burgundy finish, heat, and A/C, with an optional western finish interior. It has a fuel capacity of 89 gallons (with an optional 139 gallons), a hydraulic system capacity of 23.6 gallons, and a rear PTO with independent 540/1000 rpm settings. Dimensions include a 110-inch wheelbase, 227-inch length, and a shipping weight of 15,960 lbs. The 6388 was built in a total of 272 units and originally priced at $61,400 in 1984.

Power157 hp

Founded1981 - 1984

Model6388

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Technical Specifications

Detailed specifications and technical data for International Harvester 6388

Power

Engine	157 hp (117.1 kW)
PTO (tested)	130.61 hp (97.4 kW)
PTO (claimed)	130 hp (96.9 kW)
Drawbar (tested)	111.75 hp (83.3 kW)
Drawbar (claimed)	114 hp (85.0 kW)

Tires

Ag rear	16.9-38
Ag front	16.9-38

Engine

Type	turbocharged diesel
Model	International Harvester DT 436B
Power	157 hp (117.1 kW)
Cooling	liquid-cooled
Cylinders	6-cylinder
Rated RPM	2400
Bore/Stroke	4.30x5.00 inches (109 x 127 mm)
Displacement	436 ci (7.1 L)
Oil capacity	20 qts (18.9 L)
Starter volts	12
Coolant capacity	34 qts (32.2 L)

Height

Cab	113 inches (287 cm)
Hood	78.8 inches (200 cm)
Exhaust	124.3 inches (315 cm)

Capacity

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

Dimensions

Width	101.61 inches (258 cm)
Length	227 inches (576 cm)
Wheelbase	110 inches (279 cm)
Shipping weight	15960 lbs (7239 kg)
Ground clearance	27.3 inches (69 cm)

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 A/C. Optional western finish interior.
Steering	articulated hydrostatic power
Four-wheel drive	Yes

Production

Series	60 2+2 Series
Total built	272
Manufacturer	International Harvester
Original price	$61,400 in 1984
Production years	1981 - 1984

Transmission

Type	two-range power shift
Gears	16 forward and 8 reverse
Description	Left lever selects high, low, or reverse range. Right lever selects gear. On-the-move powershift without the clutch between gear pairs 1/2, 3/4, 5/6, and 7/8. Synchronized shift (with the clutch) from 2-to-3, 4-to-5, and 6-to-7.
Oil capacity	94.5 qts (89.4 L)

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