| Manufacturer |
International Harvester |
| Price |
61,400(USD) |
| Model |
6388 |
| Equipment Type |
- |
| Factory |
|
NEBRASKA TRACTOR TEST 1319 2
| Description |
Diesel 16-speed 4WD August 21 - 27, 1979 Link: Nebraska Tractor Test 1319 file PTO performance Drawbar performance Gear 4-Lo-DD used for power test Gear 1-Lo-DD used for pull test |
| Power at rated engine speed |
130.61hp / 97.4kW |
| Fuel use |
8.3gal/hour / 31.4l/hour |
| Power at rated PTO speed |
128.59hp / 95.9kW |
| Max power |
111.75hp / 83.3kW |
| Max pull |
16,764lbs / 7604kg |
INTERNATIONAL HARVESTER 6388 POWER
| Engine |
157hp / 117.1kW |
| Drawbar (claimed) |
114hp / 85.0kW |
| PTO (claimed) |
130hp / 96.9kW |
| Drawbar (tested) |
111.75hp / 83.3kW |
| PTO (tested) |
130.61hp / 97.4kW |
ENGINE DETAIL
The International Harvester 6388 features a robust DT 436B turbocharged diesel engine, delivering 157 hp at 2400 RPM, making it suitable for heavy-duty agricultural tasks. With a displacement of 7.1L, it provides significant torque, while the 20-quart oil and 34-quart coolant capacities enhance operational efficiency and maintenance intervals. Pros include its powerful performance and durability; however, operators should be aware of its higher fuel consumption typical of larger engines, which may lead to increased operating costs during extensive use.
| Description |
International Harvester DT 436B turbocharged diesel 6-cylinder liquid-cooled |
| Displacement |
436ci / 7.1L |
| Bore/Stroke |
4.30x5.00inches / 109x 127mm |
| Power |
157hp / 117.1kW |
| Rated RPM |
2400 |
| Starter volts |
12 |
| Oil capacity |
20qts / 18.9L |
| Coolant capacity |
34qts / 32.2L |
INTERNATIONAL HARVESTER 6388 ENGINE
The International Harvester 6388, equipped with a robust 7.1L 6-cylinder diesel engine, delivers substantial torque and power for demanding agricultural tasks. Its high displacement enhances fuel efficiency while ensuring longevity and performance under heavy loads, making it ideal for large-scale farming operations. However, maintenance of such a powerful engine can be complex and may require specialized knowledge, presenting a challenge for some operators.
| Description |
International Harvester 7.1L 6-cyl diesel |
TRANSMISSION
The International Harvester 6388 features a two-range power shift transmission that allows for a total of 16 forward and 8 reverse gears, enabling versatile operation across various terrains. The on-the-move powershift capability for specific gear pairs enhances productivity by eliminating the need for a clutch during gear transitions, although synchronized shifts from the second to third gears require a clutch engagement. Operators should be aware of the oil capacity of 94.5 quarts (89.4 liters) for optimal transmission performance, which is crucial for maintaining hydraulic efficiency and extending machine life.
| Type |
two-range power shift |
| Gears |
16 forward and 8 reverse |
| Oil capacity |
94.5qts / 89.4L |
| 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 |
SPEEDS
| Description |
With 16.9-38 tires |
MECHANICAL
The International Harvester 6388 features an articulated 4x4 chassis, providing superior maneuverability and traction in diverse terrains. Its hydrostatic power steering enhances operator control and comfort, especially in tight or uneven fields. The 16-speed two-range power shift transmission allows for efficient speed variations under load, ideal for varied agricultural tasks, though it may require operator proficiency for optimal performance.
| Chassis |
4x4 articulated 4WD |
| Steering |
articulated hydrostatic power |
| Cab |
Cab standard with burgundy finish, heat, and A/C. Optional western finish interior |
| Transmission |
16-speed two-range power shift |
CAPACITY
| Fuel |
89gal / 336.9L 139gal / 526.1L (optional) |
| Hydraulic system |
23.6gal / 89.3L |
HYDRAULICS
| Type |
closed center |
| Capacity |
23.6gal / 89.3L |
| Valves |
2 to 4 |
| Pump flow |
18gpm / 68.1lpm |
| Steering flow |
12gpm / 45.4lpm |
TRACTOR HITCH
POWER TAKE-OFF (PTO)
| Rear PTO |
independent |
| Rear RPM |
540/1000 |
INTERNATIONAL HARVESTER 6388 TIRES
The International Harvester 6388 features large 16.9-38 agricultural tires both front and rear, enhancing traction and stability on varied terrains, ideal for fieldwork and heavy-duty applications. This tractor's considerable weight and tire size can improve flotation in wet conditions, but may also lead to soil compaction if not managed properly. It's essential to consider maintaining proper tire pressures and utilizing appropriate implement configurations to maximize performance and longevity.
| Ag front |
16.9-38 |
| Ag rear |
16.9-38 |
DIMENSIONS
| Wheelbase |
110inches / 279cm |
| Length |
227inches / 576cm |
| Width |
101.61inches / 258cm |
| Shipping weight |
15960lbs / 7239kg |
| Ground clearance |
27.3inches / 69cm |
INTERNATIONAL HARVESTER 6388 HEIGHT
| Hood |
78.8inches / 200cm |
| Cab |
113inches / 287cm |
| Exhaust |
124.3inches / 315cm |
DIMENSIONS & TIRES
The International Harvester 6388 features a 110-inch wheelbase, providing stability during field operations, especially with its substantial weight of 15,960 lbs, which enhances traction but may limit mobility on softer terrains. Its uniform tire size of 16.9-38 both front and rear supports optimal weight distribution for improved grip and reduced soil compaction. However, the heavy weight may pose challenges for transport on narrower roads or hilly landscapes, necessitating careful routing and planning.
| Wheelbase |
110inches / 279cm |
| Weight |
15960lbs / 7239kg |
| Front tire |
16.9-38 |
| Rear tire |
16.9-38 |
6388 SERIAL NUMBERS
| Location |
transmission housing, right side |
| 1981 |
8801 |
| 1982 |
8962 |
| 1983 |
9060 |
| 1984 |
9241 |
| 1985 |
9361 |
