Row Crop tractorsSpec sheet
International Harvester 1066
The International Harvester 1066 is a powerful row crop tractor built from 1971 to 1976. It's a 2WD machine with a strong 6-cylinder diesel engine. This engine, made by International Harvester, has 414 cubic inches of displacement and can produce 108 horsepower. It's turbocharged and liquid-cooled, which helps it run smoothly in tough conditions. The 1066 has a gear-type transmission with 8 forward gears and 4 reverse gears. This gives farmers lots of options for different tasks. It has a three-point hitch at the back that can lift up to 5,601 pounds, which is about average for tractors like this. The tractor weighs 12,148 pounds and is 165 inches long and 97.6 inches wide. It has both 540 and 1000 rpm PTO speeds, making it versatile for various farm implements. The open operator station gives the driver a clear view of the fields.
ManufacturerInternational HarvesterPower108 hp(80.5 kW)Class100–150 HP tractors →Engine6-cylinderTransmissionGear type with dry disc clutch
Key specifications
- Category
- Row Crop
- Engine power
- 108hp
- Operating weight
- 12,148 lb
- Transmission
- Gear type with dry disc clutch
Category comparison
1066 compared with its category
vs. Row Crop medianDistribution
Engine Power (hp)
All recorded Row Crop tractors
108 hp · 30th
This model
12
Median 138 hp
283
This modelRow Crop tractorsMediann = 1,206
The 1066 ranks at the 30th percentile for engine power among recorded row crop tractors.
Overview
About the International Harvester 1066
The International Harvester 1066 is a powerful row crop tractor built from 1971 to 1976. It's a 2WD machine with a strong 6-cylinder diesel engine. This engine, made by International Harvester, has 414 cubic inches of displacement and can produce 108 horsepower. It's turbocharged and liquid-cooled, which helps it run smoothly in tough conditions. The 1066 has a gear-type transmission with 8 forward gears and 4 reverse gears. This gives farmers lots of options for different tasks. It has a three-point hitch at the back that can lift up to 5,601 pounds, which is about average for tractors like this. The tractor weighs 12,148 pounds and is 165 inches long and 97.6 inches wide. It has both 540 and 1000 rpm PTO speeds, making it versatile for various farm implements. The open operator station gives the driver a clear view of the fields.
Full specifications
Recorded specifications
General
| Manufacturer | International Harvester |
|---|---|
| Model | 1066 |
| Category | Row Crop tractor |
| Type | 4x2 2WD |
| Years built | 1971–1976 |
| Operating weight | 12,148lb(5,510 kg) |
Engine
| Make | International Harvester |
|---|---|
| Model | DT414 |
| Power | 108hp(80.54 kW) |
| Cylinders | 6 |
| Displacement | 414ci(6.78 L) |
| Bore | 4.29in(109 mm) |
| Stroke | 4.76in(120.9 mm) |
Transmission
| Type | Gear type with dry disc clutch |
|---|---|
| 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(4,191 mm) |
|---|---|
| Width | 97.6in(2,479 mm) |
| Operating weight | 12,148lb(5,510 kg) |
Capacities
| Cooling system | 6.26gal(23.7 L) |
|---|
Closest alternatives
1066 compared with the nearest models by horsepower
By engine horsepower, the nearest row crop models to the 1066 are the Farmall 1066 and the Oliver 1955. The Farmall 1066 matches it on rated power at almost the same operating weight. The Oliver 1955 matches it on rated power and weighs 900 lb less.
| Spec | International Harvester 1066 | Farmall 1066 | Oliver 1955 |
|---|---|---|---|
| Engine power | 108 hp80.5 kW | 108 hp80.5 kW | 108 hp80.5 kW |
| Operating weight | 12,148 lb5,510 kg | 12,150 lb5,511 kg | 11,250 lb5,103 kg |
| Weight per hp | 112 lb/hp68 kg/kW | 113 lb/hp68 kg/kW | 104 lb/hp63 kg/kW |
| Displacement | 414 ci6.78 L | 414 ci6.78 L | 310 ci5.08 L |
| Cylinders | 6 | 6 | 6 |
| Transmission | Gear type with dry disc clutch | Gear | Gear |
| Drive | 2WD | 2WD | 2WD |
| Years built | 1971-1976 | 1971-1976 | 1970-1974 |
Calculators
Calculators for the 1066
PTO power
About 90 to 97 PTO hp
Estimated from the 108 hp engine rating. The calculator also estimates drawbar power by surface.
Implement sizing
Implements a 108 hp tractor can run
Maximum size is about a 13 ft rotary cutter or a 11 ft tiller. The calculator also sizes discs, plows and balers.
Ballast
131 lb per PTO hp as listed
The calculator gives the target weight and front/rear split for each job.
Units
108 hp is 80.5 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Category medians
1066 vs. Row Crop median
International Harvester 1066 compared with 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 | 12,148 lb | 12,307 lb | -1% | 50th |
| Length | 165 in | 180 in | -8% | 30th |
| Width | 97.6 in | 91.2 in | +7% | 75th |
| 3-Point Hitch Capacity | 5,601 lb | 11,023 lb | -49% | 12th |
Medians and percentiles are calculated from the row crop tractors in the database that have a recorded value for each specification (sample size 279–1,417 models).
Same manufacturer
Other International Harvester models
Other manufacturers
Models with similar horsepower
Gallery
International Harvester 1066 photos
FAQ
Frequently asked questions
When was the International Harvester 1066 in production?
International Harvester 1066 production started in 1971 and ended in 1976.
What transmission is in the International Harvester 1066?
Transmission on the International Harvester 1066 is Gear type with dry disc clutch, with 8 forward speeds.
What type of hydraulic system does the International Harvester 1066 use?
Hydraulics on the International Harvester 1066 are Open center.
What hitch category is the International Harvester 1066?
The International Harvester 1066 uses a Category III/II hitch with a lift capacity of 5,601 lb.
How much horsepower does the International Harvester 1066 have?
The International Harvester 1066 produces 108 hp from its 6-cylinder engine. Engine displacement is 414 ci.
How much does the International Harvester 1066 weigh?
The International Harvester 1066 weighs about 12,148 lb in operating condition.
What maintenance does the International Harvester 1066 require?
The International Harvester 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.