Photo by United States. Army. Corps of Engineers. Los Angeles District, Public domain, via Wikimedia Commons
New Holland T9.645 Specs, Price and Review (2026)
Industrial · 580 HP · Best for fuel efficiency and versatility
Power
580 HP (432.5 kW)
Fuel
Diesel
Transmission
Manual
PTO
493 HP @ 540 rpm
Weight
19,979 kg (20 t)
New price (est.)
$624,312 – $936,468
Est. used price
$218,509 – $655,528
Overview
The New Holland T9.645 is a 580 HP industrial utility tractor built for loader work, backhoe use, and site operations. The New Holland tractor lineup is known for durability, and the T9.645 is no exception. This page provides detailed New Holland T9.645 specifications — engine, transmission, PTO, hydraulics, weight, and dimensions — sourced from manufacturer technical data. Whether you need a T9.645 review for a purchase decision or a trade-in comparison, this page covers performance analysis and suitability scoring. For New Holland T9.645 price guidance, we provide new price estimates and used market ranges so you can budget accurately before contacting a dealer. Compare the New Holland T9.645 with similar tractors using the links below, or use our TractorFit™ analysis to see how it scores for your specific operation.
TractorFitâ„¢ Analysis
Overall score
Based on specs and use-case fit for New Holland T9.645.
A high-horsepower tier for heavy tillage, big balers, and large-acreage efficiency. A manual gearbox offers straightforward operation and lower complexity. Industrial and utility use typically involves loaders, backhoes, and site work. PTO horsepower and speed options support mowers, hay tools, and other driven implements. Key specs include 580 HP, 493 HP PTO, 20 t operating weight, estimated used range $218,509–$655,528, and overall suitability 52/100.
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.
- ✓High power for heavy fieldwork and demanding equipment.
- ✓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.
- •Modest power-to-weight ratio; less agility in traction and on slopes.
- •Premium price segment relative to power and specification level.
New Holland T9.645 receives an overall suitability score of 52/100 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 31/100; fuel efficiency index is 72/100. 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 (37/100) reflects value for money. It has relative limitations in: small 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
- High HP supports big balers, heavy tillage, and large acreage.
- Manual transmission keeps design simple and ownership costs lower.
- Operating weight around 20 t supports traction and ballast for heavy implements.
- Rated PTO output of 493 HP supports mowers, hay tools, and other driven implements.
- Fuel efficiency scores well for its power class.
- Versatility index supports a wide range of tasks and attachments.
- Estimated used price range: $218,509–$655,528 USD.
Trade-offs
- Suitability scoring suggests above-average maintenance demands; consider repair history and local support.
- Loader suitability scores modestly; check front axle capacity and loader compatibility for heavy material work.
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
New Holland T9.645 — Pros and Cons
Pros
- High HP supports big balers, heavy tillage, and large acreage.
- Manual transmission keeps design simple and ownership costs lower.
- Operating weight around 20 t supports traction and ballast for heavy implements.
- Rated PTO output of 493 HP supports mowers, hay tools, and other driven implements.
- Fuel efficiency scores well for its power class.
- Versatility index supports a wide range of tasks and attachments.
- Estimated used price range: $218,509–$655,528 USD.
Cons
- Suitability scoring suggests above-average maintenance demands; consider repair history and local support.
- Loader suitability scores modestly; check front axle capacity and loader compatibility for heavy material work.
Used market insights
Estimated used price
$218,509 – $655,528 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 New Holland T9.645, verify hours, hydraulic condition, and loader/backhoe compatibility. Confirm weight for transport and permits.
Find Used Listings (International)
Technical Specifications
What this means: Power and cooling capacity matter for loader and backhoe work; diesel is typical for industrial tractors.
Engine
- Maximum Power (Gross)
- 580 HP (432.5 kW)
- Fuel Type
- Diesel
- Cooling
- Liquid
Documentation & Resources
Compare with similar models
Better Alternatives
Frequently asked questions
Is the New Holland T9.645 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 New Holland T9.645 best used for?
The New Holland T9.645 is aimed at industrial or utility use such as loaders and site work.
What type of transmission does the New Holland T9.645 have?
The New Holland T9.645 uses a manual transmission.
What should I check when buying a used New Holland T9.645?
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 New Holland T9.645 use?
The New Holland T9.645 uses diesel fuel.
What is the weight of the New Holland T9.645?
Operating weight is approximately 19,979 kg (20 tons).
Where can I find used New Holland T9.645 listings?
This page links to international marketplaces where you can search for used New Holland T9.645 tractors; listings are provided by third parties.
How much does a used New Holland T9.645 cost?
Used New Holland T9.645 tractors are often listed in the range of $218,509–$655,528 USD (high confidence). Actual prices depend on hours, condition, and region.
New Holland T9.645: Complete Tractor Specifications and Technical Data
Overview
The New Holland T9.645 is a industrial tractor from New Holland 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 580 HP diesel engine with manual transmission, delivering reliable performance. Our tractor database provides detailed specifications and technical data for the New Holland T9.645, making it easy to compare with other models in the New Holland lineup or across different brands.
Engine Specifications
The New Holland T9.645 is powered by a diesel engine that delivers 580 HP for property maintenance. Tractor horsepower is a critical specification that determines the machine's ability to handle various implements. The engine specifications demonstrate New Holland's engineering expertise in creating efficient powerplants.
- Maximum Power: 580 HP (432.5 kW)
- Fuel Type: Diesel
- Cooling System: Liquid-cooled
Transmission Specifications
The New Holland T9.645 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 New Holland T9.645's specifications help determine if the tractor fits your operational requirements.
- Wheelbase: 3912 mm (154.0 in)
- Weight: 19.979 kg (44.046 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: 493 HP (368 kW)
Performance and Applications
The New Holland T9.645 delivers 580 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 New Holland T9.645 matches your operational demands.
Technical Data Summary
This guide provides complete technical data and detailed specifications for the New Holland T9.645. Key specifications include: 580 HP engine, manual transmission, 493 HP PTO, and 19.979 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 New Holland T9.645 is a versatile lawn tractor from New Holland, designed for property maintenance. With its 580 HP diesel engine and manual transmission, weighing 20 tons, it provides efficient operation for landscaping work. This comprehensive guide offers all essential New Holland T9.645 tractor data and specifications for informed decision-making.
Conclusion
With 580 HP, the New Holland T9.645 is a model worth considering carefully 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 T9.645 against other tractors in the same HP range before making a final decision.