Farmall 766
The Farmall 766 is a sturdy row crop tractor built for hard work on the farm. It has a 2-wheel drive system and a strong 6-cylinder engine made by International Harvester. This engine has a displacement of 360 cubic inches, which is about average for tractors of its kind. The tractor runs at a very high 2400 rpm, giving it plenty of power for tough jobs. This tractor is designed for comfort and ease of use. It has hydrostatic power steering, making it easy to control in the fields. The transmission has 16 forward gears and 8 reverse gears, allowing farmers to choose the right speed for any task. Weighing in at 10,300 pounds, the Farmall 766 is a solid machine that can handle heavy loads. It comes with a category III hitch, perfect for attaching large implements. The open center hydraulic system and electric starter add to its user-friendly features, making it a reliable choice for farmers who need a dependable workhorse in their fields.

Quick specs
- Category
- Row Crop
- Operating Weight
- 10,300 lb
- Transmission
- Partial power shift
Overview
About the Farmall 766
The Farmall 766 is a sturdy row crop tractor built for hard work on the farm. It has a 2-wheel drive system and a strong 6-cylinder engine made by International Harvester. This engine has a displacement of 360 cubic inches, which is about average for tractors of its kind. The tractor runs at a very high 2400 rpm, giving it plenty of power for tough jobs. This tractor is designed for comfort and ease of use. It has hydrostatic power steering, making it easy to control in the fields. The transmission has 16 forward gears and 8 reverse gears, allowing farmers to choose the right speed for any task. Weighing in at 10,300 pounds, the Farmall 766 is a solid machine that can handle heavy loads. It comes with a category III hitch, perfect for attaching large implements. The open center hydraulic system and electric starter add to its user-friendly features, making it a reliable choice for farmers who need a dependable workhorse in their fields.
Full specifications
Every recorded spec
General
| Manufacturer | Farmall |
|---|---|
| Model | 766 |
| Category | Row Crop tractor |
| Type | 4x2 2WD |
| Operating weight | 10,300lb |
Engine
| Make | International Harvester |
|---|---|
| Cylinders | 6 |
| Displacement | 360ci |
| Bore | 3.88in |
| Stroke | 5.06in |
Transmission
| Type | Partial power shift |
|---|---|
| Forward gears | 16 |
| Reverse gears | 8 |
Chassis & drive
| Chassis | 4x2 2WD |
|---|---|
| Drive | 2WD |
| Steering | Hydrostatic power |
Hydraulics
| Type | Open Center |
|---|
Dimensions
| Operating weight | 10,300lb |
|---|
Head to head
766 vs. Row Crop median
How the Farmall 766 compares to other Row Crop tractors
| Spec | This model | Row Crop median | Difference | Percentile |
|---|---|---|---|---|
| Engine Displacement | 360 ci | 391 ci | -8% | 42nd |
| Cylinders | 6 | 6 | at median | 50th |
| Forward Gears | 16 | 16 | at median | 50th |
| Operating Weight | 10,300 lb | 12,307 lb | -16% | 34th |
Medians and percentiles are computed from the row crop tractors in our database with a recorded value for each spec (sample sizes 1,200–1,417 models).
Compare to tractors with similar specs
Commonly compared Farmall tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Farmall 100 | — | 3,000 lb | 1954–1956 | Compare → |
| Farmall 1066 | 108 hp | 12,150 lb | 1971–1976 | Compare → |
| Farmall 1206 | 110 hp | 10,115 lb | 1965–1967 | Compare → |
| Farmall 1256 | 113 hp | 10,405 lb | 1967–1969 | Compare → |
| Farmall 130 | — | 2,800 lb | 1956–1958 | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Advance-Rumely 6A | — | 6,370 lb | — | Compare → |
| Advance-Rumely DoAll | — | 3,702 lb | — | Compare → |
| Advance-Rumely OilPull B 25/45 | — | 25,000 lb | — | Compare → |
| Advance-Rumely OilPull E 30/60 | — | 26,300 lb | — | Compare → |
| Advance-Rumely OilPull F 15/30 | — | 16,500 lb | — | Compare → |
Explore
Farmall siblings
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Gallery
Farmall 766 photos




FAQ
Common questions
How many cylinders does the Farmall 766 have?
The Farmall 766 runs a 6-cylinder engine with a displacement of 360 ci.
What hitch category is the Farmall 766?
The Farmall 766 uses a Category III hitch.
What is the working weight of the Farmall 766?
The operating weight of the Farmall 766 is approximately 10,300 lb.
What type of transmission does the Farmall 766 have?
The Farmall 766 uses a Partial power shift transmission offering 16 forward gears.
What type of hydraulic system does the Farmall 766 use?
Hydraulics on the Farmall 766 are Open Center.
What routine service does the Farmall 766 need?
Regular maintenance for the Farmall 766 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.
