Row CropPerformance profile
International Harvester A-866
The International Harvester A-866 is a row crop tractor built for farm work. It has a 2-wheel drive system and a two-speed power shift transmission with 16 forward gears and 4 reverse gears. This gives farmers lots of options when working in fields. The tractor is powered by a D-358 diesel engine made by International Harvester. This engine has 6 cylinders and is cooled by liquid. It's naturally aspirated, which means it doesn't use a turbocharger. The engine puts out 121 horsepower, which is about average for tractors. Its size is also average, with a displacement of 358 cubic inches. The A-866 has a Category III hitch, making it good for heavy-duty farm tasks.
ManufacturerInternational HarvesterPower121 hpEngine6-cylTransTwo-speed power shift
Quick specs
- Category
- Row Crop
- Engine Power Output
- 121hp
- Transmission
- Two-speed power shift
At a glance
How the A-866 compares
vs. Row Crop medianDistribution
Engine Power (hp)
Across all Row Crop tractors
121 hp · 40th
This model
12
Median 138 hp
283
This modelRow Crop tractorsMediann = 1,206
The A-866 ranks at the 40th percentile for engine power among recorded row crop tractors.
Overview
About the International Harvester A-866
The International Harvester A-866 is a row crop tractor built for farm work. It has a 2-wheel drive system and a two-speed power shift transmission with 16 forward gears and 4 reverse gears. This gives farmers lots of options when working in fields. The tractor is powered by a D-358 diesel engine made by International Harvester. This engine has 6 cylinders and is cooled by liquid. It's naturally aspirated, which means it doesn't use a turbocharger. The engine puts out 121 horsepower, which is about average for tractors. Its size is also average, with a displacement of 358 cubic inches. The A-866 has a Category III hitch, making it good for heavy-duty farm tasks.
Full specifications
Every recorded spec
General
| Manufacturer | International Harvester |
|---|---|
| Model | A-866 |
| Category | Row Crop tractor |
| Type | 4x2 2WD |
Engine
| Make | International Harvester |
|---|---|
| Model | D-358 |
| Power | 121hp |
| Cylinders | 6 |
| Displacement | 358ci |
| Bore | 3.88in |
| Stroke | 5.06in |
Transmission
| Type | Two-speed power shift |
|---|---|
| Forward gears | 16 |
| Reverse gears | 4 |
Chassis & drive
| Chassis | 4x2 2WD |
|---|---|
| Drive | 2WD |
Head to head
A-866 vs. Row Crop median
How the International Harvester A-866 compares to other Row Crop tractors
| Spec | This model | Row Crop median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 121 hp | 138 hp | -12% | 40th |
| Engine Displacement | 358 ci | 391 ci | -8% | 40th |
| Cylinders | 6 | 6 | at median | 50th |
| Forward Gears | 16 | 16 | at median | 50th |
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 International Harvester tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| International Harvester 3688 | 113 hp | 13,200 lb | 1981–1985 | Compare → |
| International Harvester 1086 | 130 hp | 12,715 lb | 1976–1981 | Compare → |
| International Harvester 1206 | 110 hp | 10,115 lb | 1965–1967 | Compare → |
| International Harvester 1046 | 108.5 hp | 8,929 lb | — | Compare → |
| International Harvester 1066 | 108 hp | 12,148 lb | 1971–1976 | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Allis Chalmers D21 Series II | 121 hp | 9,502 lb | 1965–1969 | Compare → |
| AGCO RT115 | 121.4 hp | 12,900 lb | — | Compare → |
| Agrinar T-120 | 119.3 hp | 4,580 lb | — | Compare → |
| Allis Chalmers 8010 | 119 hp | 12,630 lb | 1982–1985 | Compare → |
| Allis Chalmers 7020 | 123.79 hp | 11,770 lb | 1977–1981 | Compare → |
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Gallery
International Harvester A-866 photos
FAQ
Common questions
How powerful is the International Harvester A-866?
The International Harvester A-866 has an engine power output of 121 hp. It is powered by a 6-cylinder engine displacing 358 ci.
What type of transmission does the International Harvester A-866 have?
The International Harvester A-866 uses a Two-speed power shift transmission offering 16 forward gears.
What three-point hitch category does the International Harvester A-866 use?
The International Harvester A-866 has a Category III three-point hitch.
What routine service does the International Harvester A-866 need?
Regular maintenance for the International Harvester A-866 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.