International Harvester 4186
Power
166 hp[P] hp
Production
1976-1978
Engine
Turbocharged diesel, 6-cylinder
Transmission
Gear
Weight
22400 lbs [10160 kg]
Drive
4WD
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Introduction
International Harvester 4186: High-Capacity 4WD Tractor
The International Harvester 4186 is a heavy-duty four-wheel-drive tractor produced between 1976 and 1978. Engineered for large-scale agricultural operations, this model represents the high-horsepower segment of the International Harvester line during the late 1970s.
Engine and Power
The tractor is powered by the International Harvester DT-436, a 7.1-liter, 6-cylinder turbocharged diesel engine. It utilizes a direct injection fuel system and liquid cooling to maintain thermal efficiency. The engine is rated at 166 horsepower at 2400 RPM, providing the necessary torque for heavy draft work.
Transmission and Drivetrain
The 4186 features a gear-type transmission with eight forward speeds and four reverse speeds, organized into two ranges. Power is delivered to all four wheels through a 4WD system, ensuring optimal traction in diverse field conditions. The driveline includes a 355.6mm dry disc clutch for engagement.
Hydraulics and PTO
The hydraulic system is an open-center design with a pump flow capacity of 18 gpm (68.1 lpm), supporting two valves for implement control. The independent rear PTO operates at 1000 RPM, achieved at a rated engine speed of 1159 RPM, allowing for consistent power delivery to driven attachments.
Dimensions and Chassis
With a wheelbase of 259 cm and a maximum operating weight of 10,160 kg, the 4186 is designed for stability and heavy ballasting. It is equipped with hydraulic power steering and hydraulic expanding shoe brakes to assist in the control of its significant mass. The tractor utilizes 23.1-26 agricultural tires on both the front and rear axles.
Conclusion
The International Harvester 4186 is a robust, high-performance tractor designed for demanding agricultural field work. Its combination of a high-torque turbocharged engine, 4WD traction, and heavy-duty chassis makes it suitable for intensive tillage and large-acreage farming applications.
Production Information of International Harvester, 4186
- Original price was $32,500 in 1978
- Four-wheel Drive (4WD) tractor
- Built in Rock Island, Illinois, USA
| Manufacturer | International Harvester |
|---|
Dimension and Tires Information of International Harvester, 4186
| Rear tread | 80 inches [203 cm] |
|---|---|
| Wheelbase | 102 inches [259 cm] |
| Max weight | 22400 lbs [10160 kg] |
| Shipping weight | 15900 lbs [7212 kg] |
| Length | 194 inches [492 cm] |
| Front tread | 80 inches [203 cm] |
| Height | 139 inches [353 cm] |
| Ag front | 23.1-26 |
|---|---|
| Ag rear | 23.1-26 |
Engine Specifications of International Harvester, 4186
- International Harvester DT-436
- Liquid-cooled
- Turbocharged diesel
- 6-cylinder
| Fuel system | Direct injection |
|---|---|
| Displacement | 436 ci [7.1 L] |
| Rated RPM | 2400 |
| Bore/Stroke | 4.30x5.00 inches [109 x 127 mm] |
| Starter volts | 12 |
Transmission Information of International Harvester, 4186
Transmission variants 1
- Four gears in two ranges, plus reverse range.
| Type | Gear |
|---|---|
| Gears | 8 forward and 4 reverse |
| Clutch | 355.6mm dry disc |
Mechanical Specs of International Harvester, 4186
- Cab standard
- Hydraulic expanding shoe brakes
| Drive | 4x4 4WD |
|---|---|
| Steering | Hydraulic power |
Power Information of International Harvester, 4186
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 1000 |
| Engine RPM | 1000@1159 |
Hydraulics Specifications of International Harvester, 4186
| Type | Open center |
|---|---|
| Valves | 2 |
| Pump flow | 18 gpm [68.1 lpm] |
Three-Point Hitch of International Harvester, 4186
| Rear Type | III/II |
|---|
Where it sits
With 166 hp[P] HP, the International Harvester 4186 sits just below 4166 (175 HP) in International Harvester's range. Its power puts it in the 86th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the International Harvester 4186 have?
The International Harvester 4186 delivers 166 hp[P] HP.
What years was the International Harvester 4186 produced?
The International Harvester 4186 was produced in 1976-1978.
What engine does the International Harvester 4186 have?
The International Harvester 4186 is powered by a Turbocharged diesel, 6-cylinder engine.
What transmission does the International Harvester 4186 use?
The International Harvester 4186 uses a Gear transmission.
How much does the International Harvester 4186 weigh?
The International Harvester 4186 weighs 22400 lbs [10160 kg].
Is the International Harvester 4186 4WD?
The International Harvester 4186 is available in 4WD.