Case IH 786 Tractor Parts
786 parts and accessories
The Case IH 786 tractor, manufactured from 1976 to 1984, was a versatile workhorse popular for its reliability and robust design. Powered by a diesel engine producing around 77 horsepower, with approximately 67 PTO horsepower, the 786 provided sufficient power for a variety of farm tasks. Farmers appreciated its balance of power, size, and affordability, making it a staple on many farms.
The Case IH 786 was introduced in 1976 as part of the International Harvester's '86 series. Production continued until 1984, after which it was succeeded by other models. The tractor is equipped with an International Harvester D-312 5.1L (312 ci) 6-cylinder diesel engine rated at approximately 77 horsepower. The engine features a bore and stroke of 3.875 x 4.30 inches. Transmission options included a gear transmission with 8 forward and 4 reverse speeds, offering a good range for various field operations. The independent PTO delivers around 67 horsepower, available in both 540 and 1000 RPM configurations. The hydraulic system has a capacity of approximately 12 GPM, with typically 2 remote valves. The 3-point hitch is a Category II, providing a lift capacity of around 4,000 lbs. Common farming applications for the 786 included row crop work, hay baling, livestock feeding operations, and light tillage. The 786 stood out from other models in the lineup by offering a balance between power and maneuverability, making it a good fit for smaller to medium-sized farms.
Specifications
| Engine | International Harvester D-312 77 HP Diesel |
|---|---|
| PTO HP | 67 HP @ 540/1000 RPM |
| Transmission | Gear 8F/4R |
| Hydraulics | 12 GPM, 2 remotes |
| 3-Point Hitch | Category II, 4000 lbs |
| Fuel Capacity | 24 gallons |
| Weight | 7300 lbs |
| Years Produced | 1976-1984 |
Maintenance Tips
- Change engine oil and filter every 250 hours of operation using high-quality diesel engine oil that meets the manufacturer's specifications.
- Inspect and maintain hydraulic system regularly. Check for leaks, ensure proper fluid levels, and replace hydraulic filters according to the service schedule.
- Use clean, fresh fuel and add a fuel stabilizer during seasonal storage to prevent fuel degradation and injector clogging.
- Before storing the tractor for extended periods, drain the fuel tank or add a fuel stabilizer, disconnect the battery, and store the tractor in a dry, sheltered location.
History & Background
The Case IH 786 was introduced in 1976 during the International Harvester era, becoming a popular model in the '86 series. There were no significant redesigns during its production run. The 786 played a crucial role in agricultural history by providing a reliable and versatile tractor for a wide range of farming applications.
Frequently Asked Questions
What engine is in the Case Ih 786?
The Case IH 786 is equipped with an International Harvester D-312 5.1L (312 ci) 6-cylinder diesel engine producing approximately 77 horsepower.
What is the PTO horsepower on a 786?
The Case IH 786 has a PTO horsepower rating of approximately 67 HP and offers both 540 and 1000 RPM PTO speed options.
What oil filter fits the 786?
The recommended oil filter for the Case IH 786 is a Fram PH25, Wix 51773 or equivalent. Always consult your tractor's manual to verify fitment.
What are common parts needed for the 786?
Common parts needed for the Case IH 786 include oil filters, fuel filters, air filters, belts, hydraulic seals, steering components like tie rod ends, and clutch parts.

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