Farmall 1066
The Farmall 1066 is a powerful row crop tractor that was made from 1971 to 1976. It has a strong diesel engine made by International Harvester. This engine has 6 cylinders and can produce 108 horsepower. The tractor is big and heavy, weighing 12,150 pounds. It's 165 inches long and 98 inches wide, which makes it good for working in large fields. This tractor has some great features for farming. It has a gear transmission with 8 forward gears and 4 reverse gears. The steering is easy to use with hydrostatic power. The Farmall 1066 has a strong hitch that can lift up to 5,600 pounds, which is above average for tractors. It also has two PTO speeds: 540 rpm and 1000 rpm. This makes it versatile for different farm tasks. The fuel tank can hold 42 US gallons, so you can work for a long time without stopping to refuel.
Quick specs
- Category
- Row Crop
- Engine Power Output
- 108hp
- Operating Weight
- 12,150 lb
- Transmission
- Gear
At a glance
How the 1066 compares
vs. Row Crop medianDistribution
Engine Power (hp)
Across all Row Crop tractors
This model
The 1066 ranks at the 30th percentile for engine power among recorded row crop tractors.
Overview
About the Farmall 1066
The Farmall 1066 is a powerful row crop tractor that was made from 1971 to 1976. It has a strong diesel engine made by International Harvester. This engine has 6 cylinders and can produce 108 horsepower. The tractor is big and heavy, weighing 12,150 pounds. It's 165 inches long and 98 inches wide, which makes it good for working in large fields. This tractor has some great features for farming. It has a gear transmission with 8 forward gears and 4 reverse gears. The steering is easy to use with hydrostatic power. The Farmall 1066 has a strong hitch that can lift up to 5,600 pounds, which is above average for tractors. It also has two PTO speeds: 540 rpm and 1000 rpm. This makes it versatile for different farm tasks. The fuel tank can hold 42 US gallons, so you can work for a long time without stopping to refuel.
Full specifications
Every recorded spec
General
| Manufacturer | Farmall |
|---|---|
| Model | 1066 |
| Category | Row Crop tractor |
| Type | 4x2 2WD |
| Years built | 1971–1976 |
| Operating weight | 12,150lb |
Engine
| Make | International Harvester |
|---|---|
| Model | DT414 |
| Power | 108hp |
| Cylinders | 6 |
| Displacement | 414ci |
| Bore | 4.3in |
| Stroke | 4.75in |
Transmission
| Type | Gear |
|---|---|
| Forward gears | 8 |
| Reverse gears | 4 |
Chassis & drive
| Chassis | 4x2 2WD |
|---|---|
| Drive | 2WD |
| Steering | Hydrostatic power |
| Brakes | Double dry disc, hydrostatic power self-adjusting |
| Cab | Open operator station |
Hydraulics
| Type | Open center |
|---|
Power take-off
| Rear PTO | Independent |
|---|---|
| PTO speed | 540rpm |
Dimensions
| Length | 165in |
|---|---|
| Width | 98in |
| Operating weight | 12,150lb |
Capacities
| Cooling system | 6.25gal |
|---|
Head to head
1066 vs. Row Crop median
How the Farmall 1066 compares to other Row Crop tractors
| Spec | This model | Row Crop median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 108 hp | 138 hp | -22% | 30th |
| Engine Displacement | 414 ci | 391 ci | +6% | 66th |
| Cylinders | 6 | 6 | at median | 50th |
| Forward Gears | 8 | 16 | -50% | 16th |
| Operating Weight | 12,150 lb | 12,307 lb | -1% | 50th |
| Length | 165 in | 180 in | -8% | 30th |
| Width | 98 in | 91.2 in | +8% | 77th |
| 3-Point Hitch Capacity | 5,600 lb | 11,023 lb | -49% | 12th |
Medians and percentiles are computed from the row crop tractors in our database with a recorded value for each spec (sample sizes 279–1,417 models).
Compare to tractors with similar specs
Commonly compared Farmall tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Farmall 1206 | 110 hp | 10,115 lb | 1965–1967 | Compare → |
| Farmall 1256 | 113 hp | 10,405 lb | 1967–1969 | Compare → |
| Farmall 856 | 95 hp | 10,290 lb | 1967–1971 | Compare → |
| Farmall 806 | 94.09 hp | 7,720 lb | 1963–1967 | Compare → |
| Farmall 966 | 91 hp | 11,116 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| AGCO LT90A | 110 hp | 8,820 lb | — | Compare → |
| Agrinar T-110 | 110 hp | — | — | Compare → |
| Allis Chalmers HD11 | 110 hp | 21,000 lb | 1955–1965 | Compare → |
| Apollo 1104 | 110 hp | 10,710 lb | — | Compare → |
| AGCO LT85A | 110.1 hp | 10,605 lb | — | Compare → |
Explore
Farmall siblings
Explore
Similar-spec models
FAQ
Common questions
When was the Farmall 1066 in production?
Farmall 1066 production started in 1971 and ended in 1976.
How much horsepower does the Farmall 1066 have?
The Farmall 1066 produces 108 hp from its 6-cylinder engine. Engine displacement is 414 ci.
How much does the Farmall 1066 weigh?
The Farmall 1066 weighs about 12,150 lb in operating condition.
What transmission is in the Farmall 1066?
Transmission on the Farmall 1066 is Gear, with 8 forward speeds.
What type of hydraulic system does the Farmall 1066 use?
Hydraulics on the Farmall 1066 are Open center.
What hitch category is the Farmall 1066?
The Farmall 1066 uses a Category III/II hitch with a lift capacity of 5,600 lb.
What maintenance does the Farmall 1066 require?
Like any tractor, the Farmall 1066 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.


