International Harvester 6388

The International Harvester 6388 is a tractor produced by International Harvester. It is equipped with a 436 ci 7.1 L engine. The rated power output is 157 hp 117.1 kW. Transmission: 16 forward and 8 reverse. Operating weight: 15960 lbs 7239 kg.

Overview

	1981 - 1984 60 2+2 Series
1981 - 1984
60 2+2 Series

Production
Manufacturer	International Harvester
Total built	272
Original price was $61,400 in 1984

International Harvester 6388 Engine
International Harvester 7.1L 6-cyl diesel
Engine details ...

International Harvester 6388 Transmission
16-speed two-range power shift
Transmission details ...

International Harvester 6388 Power
Engine	157 hp 117.1 kW
Drawbar (claimed)	114 hp 85.0 kW
PTO (claimed)	130 hp 96.9 kW
Drawbar (tested)	111.75 hp 83.3 kW
PTO (tested)	130.61 hp 97.4 kW
Performance test details ...

Mechanical
Four-wheel drive
Steering	articulated hydrostatic power
Cab standard with burgundy finish, heat, and A/C. Optional western finish interior.

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
Capacity	23.6 gal 89.3 L
Valves	2 to 4
Pump flow	18 gpm 68.1 lpm
Steering flow	12 gpm 45.4 lpm

Tractor hitch
Rear Type	III/II

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540/1000

Dimensions & Tires
Wheelbase	110 inches 279 cm
Weight	15960 lbs 7239 kg
Front tire	16.9-38
Rear tire	16.9-38
Full dimensions and tires ...

References
Buyer's Guide 1982 published by International Harvester
2+2 Tractors 130/150/170 HP published in 1981, by International Harvester

Engine

Engine Detail — 436 ci / 7.1 L Diesel

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

International Harvester 6388 Engine

Transmission

Transmission — 16 forward and 8 reverse two-range power shift

Type	two-range power shift
Gears	16 forward and 8 reverse
Oil capacity	94.5 qts 89.4 L
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.
With 16.9-38 tires.

Dimensions

International Harvester 6388 Tires
Ag front	16.9-38
Ag rear	16.9-38

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

International Harvester 6388 Height
Hood	78.8 inches 200 cm
Cab	113 inches 287 cm
Exhaust	124.3 inches 315 cm

Tests

Nebraska Tractor Test 1319
Diesel 16-speed 4WD August 21 - 27, 1979 Link: Nebraska Tractor Test 1319 file
PTO performance
Power at rated engine speed	130.61 hp 97.4 kW
Fuel use	8.4 gal/hour 31.8 l/hour
Power at rated PTO speed	128.59 hp 95.9 kW
Fuel use	7.6 gal/hour 28.8 l/hour
Drawbar performance
Max power	111.75 hp 83.3 kW
Fuel use	8.3 gal/hour 31.4 l/hour
Gear 4-Lo-DD used for power test.
Max pull	16,764 lbs 7604 kg
Gear 1-Lo-DD used for pull test.

Photos

International Harvester 6388

International Harvester 6388

International Harvester 6388