| Manufacturer |
International Harvester |
| Price |
65,100(USD) |
| Model |
6588 |
| Equipment Type |
- |
| Factory |
|
NEBRASKA TRACTOR TEST 1320 2
| Description |
Diesel 16-speed 4WD August 22 - 29, 1979 Link: Nebraska Tractor Test 1320 file PTO performance Drawbar performance Gear 4LoDD used for power test Gear 1LoDD used for pull test |
| Power at rated engine speed |
150.41hp / 112.2kW |
| Fuel use |
9.6gal/hour / 36.3l/hour |
| Power at rated PTO speed |
152.07hp / 113.4kW |
| Max power |
126.15hp / 94.1kW |
| Max pull |
17589lbs / 7978kg |
INTERNATIONAL HARVESTER 6588 POWER
| Engine |
177hp / 132.0kW |
| Drawbar (claimed) |
130hp / 96.9kW |
| PTO (claimed) |
150hp / 111.9kW |
| Drawbar (tested) |
126.15hp / 94.1kW |
| PTO (tested) |
150.41hp / 112.2kW |
ENGINE DETAIL
The International Harvester 6588 is powered by a robust DT 466B turbocharged diesel engine with a displacement of 7.6L, delivering a respectable 177hp at 2400 RPM, ideal for heavy-duty agricultural tasks. Its large oil and coolant capacities (20qts and 34qts) provide enhanced thermal regulation and longevity under strenuous operating conditions, which is crucial in maintaining peak performance during prolonged use. However, the tractor's weight and size could present challenges in maneuverability in smaller fields or tight spaces.
| Description |
International Harvester DT 466B turbocharged diesel 6-cylinder liquid-cooled |
| Displacement |
466ci / 7.6L |
| Bore/Stroke |
4.30x5.35inches / 109x 136mm |
| Power |
177hp / 132.0kW |
| Rated RPM |
2400 |
| Starter volts |
12 |
| Oil capacity |
20qts / 18.9L |
| Coolant capacity |
34qts / 32.2L |
INTERNATIONAL HARVESTER 6588 ENGINE
The International Harvester 6588 is powered by a robust 7.6L 6-cylinder diesel engine, providing substantial torque for heavy-duty tasks. Its fuel efficiency may be challenged in high-demand scenarios, but the engine's reliability and ease of maintenance are significant advantages for prolonged operational use. Ideal for large-scale farming operations, this tractor excels in pulling implements and performing tillage tasks, given its suitable horsepower and durable build.
| Description |
International Harvester 7.6L 6-cyl diesel |
TRANSMISSION
The International Harvester 6588 features a two-range power shift transmission, providing 16 forward and 8 reverse gears, facilitating versatile operation in various farming conditions. The on-the-move powershift capability allows for seamless gear changes between specified pairs, enhancing productivity, while synchronized shifting requires clutch use for certain gear transitions, which may introduce a slight delay. With an oil capacity of 94.5 quarts, maintaining optimal hydraulic performance is crucial to prevent overheating and ensure smooth operation, particularly in demanding tasks.
| 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 18.4-34 tires |
MECHANICAL
The International Harvester 6588 features a 4x4 articulated chassis, providing enhanced maneuverability and traction on diverse terrains, beneficial for heavy-duty applications. Its 16-speed two-range power shift transmission allows for precise speed management, improving efficiency during variable tasks such as tilling or hauling. The hydrostatic power steering and standard climate-controlled cab ensure operator comfort and ease of use, essential for prolonged work in changing weather conditions, though the complexity may introduce maintenance challenges.
| Chassis |
4x4 articulated 4WD |
| Steering |
articulated hydrostatic power |
| Cab |
Cab standard with burgundy finish, heat, and A/C. Optional wester 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 |
1000 |
INTERNATIONAL HARVESTER 6588 TIRES
The International Harvester 6588, equipped with 18.4-38 Ag tires both front and rear, offers a robust tire footprint for enhanced traction in agricultural tasks, particularly in fieldwork. However, this tire size may limit maneuverability in tighter spaces and increase soil compaction, which could affect crop health. Ideal scenarios include heavy tillage and pulling substantial implements, where the tractor’s powerful engine and torque can be fully leveraged.
| Ag front |
18.4-38 |
| Ag rear |
18.4-38 |
DIMENSIONS
| Wheelbase |
110inches / 279cm |
| Length |
228.3inches / 579cm |
| Width |
101.61inches / 258cm |
| Shipping weight |
16320lbs / 7402kg |
| Ground clearance |
28.4inches / 72cm |
INTERNATIONAL HARVESTER 6588 HEIGHT
| Hood |
79.9inches / 202cm |
| Cab |
114.1inches / 289cm |
| Exhaust |
125.4inches / 318cm |
DIMENSIONS & TIRES
The International Harvester 6588 has a 110-inch wheelbase, providing stability during operation, particularly in field tasks and heavy load scenarios; however, it may limit maneuverability in tight spaces. Weighing 16,320 lbs enhances traction but may challenge transportability and require a robust towing vehicle. Its dual 18.4-38 tires improve flotation and soil compaction management, crucial for agricultural settings, though tire wear may increase under high-load conditions.
| Wheelbase |
110inches / 279cm |
| Weight |
16320lbs / 7402kg |
| Front tire |
18.4-38 |
| Rear tire |
18.4-38 |
6588 SERIAL NUMBERS
| Location |
transmission housing, right side |
| 1981 |
8801 |
| 1982 |
8966 |
| 1983 |
9164 |
| 1984 |
9361 |
| 1985 |
9526 |
ELECTRICAL
| Ground |
negative |
| Battery volts |
12 |
