International Harvester 7488
Power
235 hp
Production
1985
Engine
Intercooled turbocharged diesel, 6-cylinder
Transmission
Tri-Six
Weight
20175 lbs [9151 kg]
Drive
4WD
From the same series:
Introduction
International Harvester 7488 Four-Wheel Drive Tractor
The International Harvester 7488 is a heavy-duty four-wheel drive tractor produced in 1985 in Rock Island, Illinois. As part of the 7288 series, this machine was engineered for demanding agricultural applications, combining high-horsepower performance with specialized transmission systems.
Engine and Performance
The tractor is powered by the International Harvester DTI-466C, a 7.6-liter, 6-cylinder liquid-cooled turbocharged diesel engine with intercooling. It delivers 235 horsepower at a rated engine speed of 2400 RPM. The engine features a dual-stage dry air cleaner and utilizes ether injection for cold-start pre-heating, ensuring reliable operation under various environmental conditions.
Transmission and Drivetrain
The vehicle utilizes the Synchro Tri-Six transmission, which provides 18 forward and 6 reverse gears. It operates as a partial power shift system, allowing operators to shift between gear pairs (1/2, 3/4, 5/6) using a hydraulic wet disc clutch, while the high, medium, and low ranges define the primary working speeds. The drivetrain includes articulated power steering and a hydraulic differential lock to maintain traction across uneven terrain.
Hydraulics and Hitch
The hydraulic system is of the closed-center type, providing a total flow capacity of 86 gpm (325.5 lpm), with a dedicated 12 gpm flow for steering. It supports 2 to 4 rear valves for implement control. The rear hitch is a Category III/II system featuring both position and draft control, capable of lifting up to 9,890 lbs (4,486 kg). An independent rear PTO rated at 1000 RPM is included as standard equipment.
Dimensions and Operator Environment
With a wheelbase of 115.5 inches (293 cm) and an overall length of 239.1 inches (607 cm), the 7488 provides a stable platform for heavy draft work. The tractor includes an air-conditioned cabin as standard, designed to improve operator comfort during extended field operations. It rides on 20.8-38 tires for both front and rear axles.
Conclusion
With only 16 units produced, the International Harvester 7488 remains a specialized, high-capacity machine. Its combination of a powerful 235-hp engine, robust hydraulic capacity, and articulated 4WD configuration makes it well-suited for large-scale primary tillage and intensive heavy-duty traction tasks.
Production Information of International Harvester, 7488
- Four-wheel Drive (4WD) tractor
- Built in Rock Island, Illinois, USA
| Manufacturer | International Harvester |
|---|---|
| Total built | 16 |
Dimension and Tires Information of International Harvester, 7488
| Clearance (drawbar) | 17.5 inches [44 cm] |
|---|---|
| Wheelbase | 115.5 inches [293 cm] |
| Shipping weight | 20175 lbs [9151 kg] |
| Height (exhaust) | 128.9 inches [327 cm] |
| Length | 239.1 inches [607 cm] |
| Front axle | Bar: 4 inch diameter [101 mm] |
| Clearance (front axle) | 20.5 inches [52 cm] |
| Width | 114 inches [289 cm] |
| Bar rear axle | 4 inch diameter [101 mm] |
| Ag front | 20.8-38 |
|---|---|
| Ag rear | 20.8-38 |
Engine Specifications of International Harvester, 7488
- International Harvester DTI-466C
- Liquid-cooled
- Intercooled turbocharged diesel
- 6-cylinder
| Coolant capacity | 36 qts [34.1 L] |
|---|---|
| Air cleaner | Dual-stage dry |
| Pre-heating | Ether injection |
| Idle RPM | 880-2640 |
| Rated RPM | 2400 |
| Displacement | 466 ci [7.6 L] |
| Power | 235 hp [175.2 kW] |
| Bore/Stroke | 4.30x5.35 inches [109 x 136 mm] |
| Oil capacity | 20 qts [18.9 L] |
| Starter volts | 12 |
| Starter | Electric |
Transmission Information of International Harvester, 7488
Transmission variants 1
- The Synchro Tri-Six provides six gears with high, medium, low, and reverse ranges. A power shift exists with gear pairs (1/2, 3/4, 5/6) then the clutch needed to shift between pairs.
| Transmission | Tri-Six |
|---|---|
| Oil capacity | 172 qts [162.8 L] |
| Clutch | Hydraulic wet disc |
| Type | Partial power shift |
| Gears | 18 forward and 6 reverse |
Mechanical Specs of International Harvester, 7488
- Four-wheel drive
- Cab standard with air-conditioning.
- Hydraulic wet disc brakes
- Articulated power steering
| Differential lock | Hydraulic |
|---|
Power Information of International Harvester, 7488
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 1000 |
Hydraulics Specifications of International Harvester, 7488
| Type | Closed center |
|---|---|
| Total flow | 86 gpm [325.5 lpm] |
| Pump flow | 28 gpm [106.0 lpm] |
| Capacity | 43 gal [162.8 L] |
| Steering flow | 12 gpm [45.4 lpm] |
| Rear valves | 2 to 4 |
Three-Point Hitch of International Harvester, 7488
| Rear Type | III/II |
|---|---|
| Control | Position and draft control |
| Rear lift | 9890 lbs [4486 kg] |
Electrical System of International Harvester, 7488
| Ground | Negative |
|---|---|
| Charging system | Alternator |
| Battery volts | 12 |
Where it sits
With 235 HP, the International Harvester 7488 sits just above 7288 (210 HP) in International Harvester's range. Its power puts it in the 92th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the International Harvester 7488 have?
The International Harvester 7488 delivers 235 HP.
What years was the International Harvester 7488 produced?
The International Harvester 7488 was produced in 1985.
What engine does the International Harvester 7488 have?
The International Harvester 7488 is powered by a Intercooled turbocharged diesel, 6-cylinder engine.
What transmission does the International Harvester 7488 use?
The International Harvester 7488 uses a Tri-Six transmission.
How much does the International Harvester 7488 weigh?
The International Harvester 7488 weighs 20175 lbs [9151 kg].
Is the International Harvester 7488 4WD?
The International Harvester 7488 is available in 4WD.