International Harvester 1066 Specs, Price and Review (2026)
Agricultural · 108 HP · Best for versatility and fuel efficiency
Power
108 HP (80.5 kW)
Fuel
Diesel
Transmission
Manual
PTO
92 HP @ 540 rpm
Weight
6,053 kg (6 t)
New price (est.)
$62,208 – $93,312
Est. used price
$21,773 – $65,318
Overview
Powered by a 108 HP engine, the International Harvester 1066 is a agricultural tractor designed for large-acreage farming, heavy tillage, and large-implement compatibility. Built by International Harvester, the 1066 carries the engineering standards expected from this manufacturer. Here you will find all 1066 specs: engine displacement, fuel system, transmission gears, hydraulic flow, lift capacity, PTO speed, and tractor dimensions. Our 1066 review section below breaks down real-world strengths, trade-offs, and best use cases based on the technical specifications. Looking for the 1066 price? Our used market section estimates current resale values, and the listings panel links to live marketplace data. Scroll down for the complete International Harvester 1066 specification tables, suitability scores, price estimates, and links to similar tractors in our database.
TractorFitâ„¢ Analysis
Overall score
Based on specs and use-case fit for International Harvester 1066.
With its specs, the mainstream farm segment for fieldwork, feeding, and material handling. Manual transmission keeps ownership costs down and is well understood for maintenance. Farm-oriented design prioritizes drawbar and PTO work, hydraulics, and durability. PTO specs determine compatibility with mowers, balers, and other powered attachments. Key specs include 108 HP, 92 HP PTO, 6 t operating weight, estimated used range $21,773–$65,318, and overall suitability 51/100.
Higher = simpler
Pros
- ✓Simple maintenance; mechanical transmission with lower repair costs.
- ✓High versatility: PTO and hydraulic options for multiple implements.
- ✓Reliable manual transmission with low maintenance cost.
Cons
- •Limited capacity for intensive loader work.
- •Modest power-to-weight ratio; less agility in traction and on slopes.
- •Basic hydraulic system; limited for demanding implements.
International Harvester 1066 receives an overall suitability score of 51/100 from the TractorSuitabilityâ„¢ Engine. mixed use with multiple PTO and hydraulic implements. The suitability sub-scores allow an objective comparison of performance across farm sizes and use types. Loader work rates 31/100; fuel efficiency index is 65/100. Maintenance is classified as Low: Mechanical transmission and straightforward engine design; lower repair costs and easier DIY or general dealer servicing. Operating cost tier is Moderate: Reasonable fuel efficiency and maintenance; operating costs are in line with the power class. Versatility (71/100) reflects PTO and hydraulic options; cost tier (59/100) reflects value for money. It has relative limitations in: large farm, loader. Overall, it offers a specialized profile for its class. The TractorSuitabilityâ„¢ Engine uses manufacturer technical data only to compute these indices in an objective, reproducible way. We recommend comparing these scores with your specific acreage, crop type, and implement needs before deciding.
Real-world performance & ownership
Highlights
- HP band suits full-season fieldwork and feeding.
- Manual transmission keeps design simple and ownership costs lower.
- Operating weight around 6 t supports traction and ballast for heavy implements.
- Rated PTO output of 92 HP supports mowers, hay tools, and other driven implements.
- Versatility index supports a wide range of tasks and attachments.
- Estimated used price range: $21,773–$65,318 USD.
- Farm orientation targets fieldwork, PTO work, and reliability.
Trade-offs
- Maintenance complexity is rated on the higher side; factor in service access and parts availability.
- Loader and front attachment suitability is limited by design; best for lighter loader duties.
Best for
- Row-crop and hay operations
- Feeding and material handling
- Full-season fieldwork
- Mixed tasks and attachment use
Not ideal for
- Heavy, continuous loader work
- Low-maintenance-first buyers
International Harvester 1066 — Pros and Cons
Pros
- HP band suits full-season fieldwork and feeding.
- Manual transmission keeps design simple and ownership costs lower.
- Operating weight around 6 t supports traction and ballast for heavy implements.
- Rated PTO output of 92 HP supports mowers, hay tools, and other driven implements.
- Versatility index supports a wide range of tasks and attachments.
- Estimated used price range: $21,773–$65,318 USD.
- Farm orientation targets fieldwork, PTO work, and reliability.
Cons
- Maintenance complexity is rated on the higher side; factor in service access and parts availability.
- Loader and front attachment suitability is limited by design; best for lighter loader duties.
Used market insights
Estimated used price
$21,773 – $65,318 USD
High confidence
Estimate only. Actual prices vary by condition, hours, and region.
Buyer checklist
- Check engine and PTO hours; service history matters for long-term reliability.
- Confirm PTO speed (540/1000) and HP match your mowers, balers, or other implements.
- Inspect hydraulics and three-point hitch condition; repair costs can be high.
For used International Harvester 1066, hours and service history matter. Confirm PTO and hydraulic operation, tire condition, and that implements match your HP and category.
Find Used Listings (International)
Technical Specifications
What this means: Gross HP and torque influence implement sizing; diesel is standard for farm use and longevity.
Engine
- Maximum Power (Gross)
- 108 HP (80.5 kW)
- Fuel Type
- Diesel
- Cooling
- Liquid
Compare with similar models
Better Alternatives
Frequently asked questions
What is the horsepower of the International Harvester 1066?
The International Harvester 1066 is rated at 108 HP (gross) (80.5 kW).
Is the International Harvester 1066 good for loader work?
TractorFit scores rate this model as less suited for loader work (31/100). Check front axle capacity and loader compatibility for your intended use.
What is the International Harvester 1066 best used for?
As a farm tractor, the International Harvester 1066 is suited to fieldwork, PTO-driven implements, hay work, and general estate or small-farm tasks.
What type of transmission does the International Harvester 1066 have?
The International Harvester 1066 uses a manual transmission.
What should I check when buying a used International Harvester 1066?
Verify hours, condition, service history, PTO operation, hydraulics, and tire wear. Confirm weight and dimensions if you need to transport or match implements.
What fuel does the International Harvester 1066 use?
The International Harvester 1066 uses diesel fuel.
International Harvester 1066: Complete Tractor Specifications and Technical Data
Overview
The International Harvester 1066 is a agricultural tractor from International Harvester designed for agricultural operations. This comprehensive tractor specifications guide provides complete technical data, engine specifications, transmission details, dimensions, and hydraulic system capabilities. This agricultural tractor features a 108 HP diesel engine with manual transmission, delivering reliable performance. Our tractor database provides detailed specifications and technical data for the International Harvester 1066, making it easy to compare with other models in the International Harvester lineup or across different brands.
Engine Specifications
The International Harvester 1066 is powered by a diesel engine that delivers 108 HP for agricultural tasks. Tractor horsepower is a critical specification that determines the machine's ability to handle various implements. The engine specifications demonstrate International Harvester's engineering expertise in creating efficient powerplants.
- Maximum Power: 108 HP (80.5 kW)
- Fuel Type: Diesel
- Cooling System: Liquid-cooled
Transmission Specifications
The International Harvester 1066 features a manual transmission system. Transmission type affects power delivery and operational efficiency. Different transmission types offer various advantages for different operating conditions and implement requirements.
Dimensions and Weight
Understanding tractor dimensions and weight is essential for storage, transport, and operational compatibility. The International Harvester 1066's specifications help determine if the tractor fits your operational requirements.
- Wheelbase: 2667 mm (105.0 in)
- Weight: 6053 kg (13.345 lbs)
Power Take-Off (PTO)
The PTO system allows the tractor to transfer engine power to driven implements. PTO specifications, including horsepower and speed ratings, are essential when selecting implements.
- PTO Speed: 540 rpm
- PTO Power: 92 HP (69 kW)
Performance and Applications
The International Harvester 1066 delivers 108 HP performance for agricultural applications including plowing, planting, and harvesting. Tractor performance metrics, including power output, hydraulic capabilities, and dimensions, determine the machine's suitability for various tasks. When evaluating tractor performance, consider your specific application requirements, operating conditions, and implement needs to ensure the International Harvester 1066 matches your operational demands.
Technical Data Summary
This guide provides complete technical data and detailed specifications for the International Harvester 1066. Key specifications include: 108 HP engine, manual transmission, 92 HP PTO, and 6053 kg weight. These tractor specifications enable accurate comparisons with other models. Our tractor database provides comprehensive data for thousands of models, making it easy to research specifications and compare tractors.
Conclusion
The International Harvester 1066 is a reliable agricultural tractor from International Harvester, designed for modern farming operations. With its 108 HP diesel engine and manual transmission, weighing 6 tons, it provides dependable performance for agricultural tasks. This comprehensive guide offers all essential International Harvester 1066 tractor data and specifications for informed decision-making.
Conclusion
With 108 HP, the International Harvester 1066 is a model worth considering carefully for operators who need Row-crop and hay operations, Feeding and material handling, Full-season fieldwork. Check the price range shown above and compare with similar models to ensure it fits your budget. Use our comparison tool to stack the 1066 against other tractors in the same HP range before making a final decision.