International Harvester T-6 Specs, Price and Review (2026)
Industrial · 641.1 HP · Best for fuel efficiency and versatility
Power
641.1 HP (478 kW)
Fuel
Diesel
Transmission
Manual
PTO
545 HP @ 540 rpm
Weight
3,402 kg (3 t)
New price (est.)
$530,831 – $796,246
Est. used price
$185,791 – $557,372
Overview
TractorFitâ„¢ Analysis
Overall score
Based on specs and use-case fit for International Harvester T-6.
A top power band for large farms and contractors who need maximum drawbar and PTO output. Manual transmission keeps ownership costs down and is well understood for maintenance. Industrial and utility use typically involves loaders, backhoes, and site work. PTO specs determine compatibility with mowers, balers, and other powered attachments. Key specs include 641.1 HP, 545 HP PTO, 3 t operating weight, estimated used range $185,791–$557,372, and overall suitability 66/100.
Higher = simpler
Pros
- ✓Efficient consumption relative to power-to-weight and engine type.
- ✓Simple maintenance; mechanical transmission with lower repair costs.
- ✓High versatility: PTO and hydraulic options for multiple implements.
- ✓Strong power-to-weight ratio for drawbar work and acceleration.
- ✓Reliable manual transmission with low maintenance cost.
Cons
- •May be excessive in size and fuel use for very small farms.
- •Limited capacity for intensive loader work.
- •Premium price segment relative to power and specification level.
- •Basic hydraulic system; limited for demanding implements.
International Harvester T-6 receives an overall suitability score of 66/100 from the TractorSuitabilityâ„¢ Engine. mixed use with multiple PTO and hydraulic implements, operations where fuel economy is a priority, demanding loader and draft work on larger operations. The suitability sub-scores allow an objective comparison of performance across farm sizes and use types. Loader work rates 27/100; fuel efficiency index is 100/100. 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 Low: Good fuel efficiency, strong value tier, and low maintenance complexity keep operating costs down. Versatility (71/100) reflects PTO and hydraulic options; cost tier (38/100) reflects value for money. It has relative limitations in: small farm, loader. Overall, it offers a balanced 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
- High HP supports big balers, heavy tillage, and large acreage.
- Manual transmission keeps design simple and ownership costs lower.
- 3 t operating weight fits a broad range of implements and conditions.
- Rated PTO output of 545 HP supports mowers, hay tools, and other driven implements.
- Suitability profile is solid across typical use cases.
- Fuel efficiency scores well for its power class.
- Versatility index supports a wide range of tasks and attachments.
- Estimated used price range: $185,791–$557,372 USD.
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
- Maximum productivity fieldwork
- Large balers and tillage
- Big-acreage and contractor use
- Fuel-conscious operation
- Mixed tasks and attachment use
Not ideal for
- Heavy, continuous loader work
- Low-maintenance-first buyers
- Light-duty or compact-property-only use
International Harvester T-6 — Pros and Cons
Pros
- High HP supports big balers, heavy tillage, and large acreage.
- Manual transmission keeps design simple and ownership costs lower.
- 3 t operating weight fits a broad range of implements and conditions.
- Rated PTO output of 545 HP supports mowers, hay tools, and other driven implements.
- Suitability profile is solid across typical use cases.
- Fuel efficiency scores well for its power class.
- Versatility index supports a wide range of tasks and attachments.
- Estimated used price range: $185,791–$557,372 USD.
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
$185,791 – $557,372 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 T-6, verify hours, hydraulic condition, and loader/backhoe compatibility. Confirm weight for transport and permits.
Find Used Listings (International)
Technical Specifications
What this means: Industrial use demands reliability under load; engine specs affect duty cycle and attachment compatibility.
Engine
- Maximum Power (Gross)
- 641.1 HP (478 kW)
- Fuel Type
- Diesel
- Cooling
- Liquid
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Frequently asked questions
What is the International Harvester T-6 best used for?
The International Harvester T-6 is aimed at industrial or utility use such as loaders and site work.
What type of transmission does the International Harvester T-6 have?
The International Harvester T-6 uses a manual transmission.
What should I check when buying a used International Harvester T-6?
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 T-6 use?
The International Harvester T-6 uses diesel fuel.
What is the weight of the International Harvester T-6?
Operating weight is approximately 3,402 kg (3 tons).
Where can I find used International Harvester T-6 listings?
This page links to international marketplaces where you can search for used International Harvester T-6 tractors; listings are provided by third parties.
How much does a used International Harvester T-6 cost?
Used International Harvester T-6 tractors are often listed in the range of $185,791–$557,372 USD (high confidence). Actual prices depend on hours, condition, and region.
Does the International Harvester T-6 have a PTO?
Yes. The International Harvester T-6 has a rear PTO rated at 545 HP at 540 rpm.
What is the horsepower of the International Harvester T-6?
The International Harvester T-6 is rated at 641.1 HP (gross) (478 kW).
Is the International Harvester T-6 good for loader work?
TractorFit scores rate this model as less suited for loader work (27/100). Check front axle capacity and loader compatibility for your intended use.
International Harvester T-6: Complete Tractor Specifications and Technical Data
Overview
The International Harvester T-6 is a industrial tractor from International Harvester designed for landscaping and property maintenance. This comprehensive tractor specifications guide provides complete technical data, engine specifications, transmission details, dimensions, and hydraulic system capabilities. This industrial tractor features a 641.1 HP diesel engine with manual transmission, delivering reliable performance. Our tractor database provides detailed specifications and technical data for the International Harvester T-6, making it easy to compare with other models in the International Harvester lineup or across different brands.
Engine Specifications
The International Harvester T-6 is powered by a diesel engine that delivers 641.1 HP for property maintenance. 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: 641.1 HP (478 kW)
- Fuel Type: Diesel
- Cooling System: Liquid-cooled
Transmission Specifications
The International Harvester T-6 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 T-6's specifications help determine if the tractor fits your operational requirements.
- Weight: 3402 kg (7500 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: 545 HP (407 kW)
Performance and Applications
The International Harvester T-6 delivers 641.1 HP performance for landscaping and property maintenance tasks. 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 T-6 matches your operational demands.
Technical Data Summary
This guide provides complete technical data and detailed specifications for the International Harvester T-6. Key specifications include: 641.1 HP engine, manual transmission, 545 HP PTO, and 3402 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 T-6 is a versatile lawn tractor from International Harvester, designed for property maintenance. With its 641.1 HP diesel engine and manual transmission, weighing 3 tons, it provides efficient operation for landscaping work. This comprehensive guide offers all essential International Harvester T-6 tractor data and specifications for informed decision-making.
Conclusion
With 641.1 HP, the International Harvester T-6 is a solid choice for operators who need Maximum productivity fieldwork, Large balers and tillage, Big-acreage and contractor use. Check the price range shown above and compare with similar models to ensure it fits your budget. Use our comparison tool to stack the T-6 against other tractors in the same HP range before making a final decision.