Case IH 4186 Tractor Parts
4186 parts and accessories
The Case IH 4186 tractor, manufactured from 1976 to 1979, was a powerful workhorse for its time. It featured a 300 HP V8 diesel engine, delivering substantial power for heavy tillage and large-scale farming operations. Its robust design and high PTO horsepower made it a favorite among farmers seeking a dependable tractor for demanding tasks.
The Case IH 4186 was introduced in 1976 as part of International Harvester's (later Case IH) expansion into high-horsepower articulated tractors. Production continued through 1979. Powering this machine was a Cummins V-8 diesel engine, delivering approximately 300 horsepower and a displacement of 903 cubic inches. This engine provided ample torque for pulling heavy implements. The tractor utilized a robust 10-speed transmission, offering a wide range of speeds for various field conditions. The PTO delivered around 225 horsepower, available in 1000 RPM configuration for running large implements like forage harvesters and grain carts. Hydraulic capacity was significant for the time, supporting multiple remote valves for controlling implements. The 3-point hitch was a Category III, capable of lifting heavy loads. Farmers commonly used the 4186 for primary tillage operations like plowing and disking, as well as for large-scale planting and harvesting. Its size and power distinguished it from smaller tractors in the Case IH lineup, catering to the needs of larger farming operations.
Specifications
| Engine | Cummins V-903 300 HP Diesel |
|---|---|
| PTO HP | 225 HP @ 1000 RPM |
| Transmission | Gear 10-speed |
| Hydraulics | 30 GPM, 3 remotes |
| 3-Point Hitch | Category III, 7,000 lbs lift capacity |
| Fuel Capacity | 150 gallons |
| Weight | 25,000 lbs |
| Years Produced | 1976-1979 |
Maintenance Tips
- Engine Oil & Filter: Change the engine oil and filter every 250 hours of operation using a high-quality diesel engine oil and the correct filter.
- Hydraulic System: Inspect hydraulic fluid levels regularly and change the hydraulic fluid and filter every 500 hours, or as recommended by the manufacturer, to prevent contamination and maintain optimal performance.
- Fuel System: Use clean, high-quality diesel fuel and replace the fuel filter every 250 hours to prevent fuel system issues. Drain water from the fuel/water separator regularly.
- Seasonal Storage: Before storing the tractor for the off-season, drain the fuel tank, add fuel stabilizer, and run the engine briefly to distribute the stabilizer throughout the fuel system to prevent fuel degradation.
History & Background
The Case IH 4186 was launched in the mid-1970s, representing a significant step in high-horsepower articulated tractors. While not undergoing major redesigns during its production run, it established a reputation for reliability and power. It demonstrated IH's commitment to serving the needs of large-scale agricultural operations.
Frequently Asked Questions
What engine is in the Case Ih 4186?
The Case IH 4186 is powered by a Cummins V-903 diesel engine with approximately 300 horsepower and a displacement of 903 cubic inches.
What is the PTO horsepower on a 4186?
The PTO horsepower on the Case IH 4186 is approximately 225 horsepower, available at 1000 RPM.
What oil filter fits the 4186?
Common oil filter cross-references for the Case IH 4186 include Fleetguard LF3000, Baldwin BD7317, and Wix 51794. Always verify compatibility with your specific engine serial number.
What are common parts needed for the 4186?
Common wear parts for the Case IH 4186 include engine oil filters, fuel filters, hydraulic filters, belts, hydraulic seals, steering components, and clutch parts. Due to the age of the tractor, routine inspection and replacement of hoses and belts is important.

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