Farmall 666
Complete specifications and technical data for the Farmall 666. Compare with similar tractors from Farmall and other manufacturers.
Quick Specs
Category
Operating Weight
Strength vs Median
The Farmall 666 is a versatile tractor designed for various farming tasks. It features a powerful 6-cylinder engine made by International Harvester, running at 2000 rpm. The tractor has a hydrostatic ...
Specifications
Engine Power Output Comparison of Farmall 666 vs. Other Utility Tractors
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Compare to Other Tractors
How the Farmall 666 compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Cylinders | 6 | 4 | +50% | 93rd |
| Forward Gears | 10 | 12 | -17% | 39th |
| Operating Weight | 7,053 lb | 5,300 lb | +33% | 67th |
Medians and percentiles are computed from the utility tractors in our database with a recorded value for each spec (sample sizes 4,942–5,721 models).
Compare to other tractors with similar specs
Commonly compared Farmall tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Farmall 140 | 21.1 hp | 3,000 lb | 1958–1973 | Compare → |
| Farmall 544 | — | 7,195 lb | — | Compare → |
| Farmall 564 | 60 hp | 5,465 lb | — | Compare → |
| Farmall 826 | — | 9,860 lb | — | Compare → |
| Farmall Cub | — | 1,477 lb | — | 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 → |
Frequently Asked Questions
What engine configuration does the Farmall 666 use?
The Farmall 666 is equipped with a 6-cylinder engine.
How much does the Farmall 666 weigh?
The Farmall 666 weighs about 7,053 lb in operating condition.
What three-point hitch category does the Farmall 666 use?
The Farmall 666 has a Category Category 2 three-point hitch.
What maintenance does the Farmall 666 require?
Like any tractor, the Farmall 666 needs periodic engine oil and filter changes, hydraulic fluid checks, and regular greasing and inspection. The owner's manual lists the manufacturer's recommended service intervals.