Challenger MT665B Specs, Price and Review (2026)
Industrial · 260 HP · Best for fuel efficiency and versatility
Power
260 HP (194 kW)
Fuel
Diesel
Transmission
Cvt
PTO
221 HP @ 540 rpm
Weight
9,203 kg (9 t)
New price (est.)
$215,280 – $322,920
Est. used price
$75,348 – $226,044
Overview
The Challenger MT665B sits in the 180+ HP large power class and is aimed at loader work, backhoe use, and site operations. Challenger tractors are widely used across farm operations, and the MT665B represents a strong entry in the 180+ HP large segment. On this page you will find complete Challenger MT665B specs including engine data, transmission type, hydraulic lift capacity, PTO output, dimensions, and operating weight. Use the Challenger MT665B review sections on this page — TractorFit analysis, pros and cons, and use-case ratings — to judge suitability before purchasing. Challenger MT665B price varies by year, hours, condition, and region — our used price estimate gives you a data-based range to start your search. Use this page to review all Challenger MT665B data in one place — from specs and pricing to suitability ratings and direct comparisons with competing models.
TractorFit™ Analysis
Overall score
Based on specs and use-case fit for Challenger MT665B.
This model sits in the top power band for large farms and contractors who need maximum drawbar and PTO output. CVT or continuously variable transmission maximizes efficiency across a wide speed range. Industrial tractors are often used for construction, landscaping, and material handling. PTO specs determine compatibility with mowers, balers, and other powered attachments. Key specs include 260 HP, 221 HP PTO, 9 t operating weight, estimated used range $75,348–$226,044, and overall suitability 38/100.
Higher = simpler
Pros
- ✓Efficient consumption relative to power-to-weight and engine type.
- ✓High versatility: PTO and hydraulic options for multiple implements.
- ✓High power for heavy fieldwork and demanding equipment.
- ✓CVT transmission for smooth operation and continuous adaptation to load.
Cons
- •May be excessive in size and fuel use for very small farms.
- •Limited capacity for intensive loader work.
- •Higher maintenance complexity; specialized service recommended.
- •Modest power-to-weight ratio; less agility in traction and on slopes.
- •Premium price segment relative to power and specification level.
Challenger MT665B receives an overall suitability score of 38/100 from the TractorSuitability™ Engine. mixed use with multiple PTO and hydraulic implements, operations where fuel economy is a priority. 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 Specialized: CVT or complex drivetrain; specialized technical service and higher maintenance costs expected. Operating cost tier is Elevated: Higher fuel or maintenance costs relative to segment; budget accordingly for fuel and servicing. Versatility (71/100) reflects PTO and hydraulic options; cost tier (18/100) reflects value for money. It has relative limitations in: small farm, loader. Overall, it offers a specialized profile for its class. The TractorSuitability™ 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
- Top-tier power for maximum productivity and large implements.
- CVT transmission allows seamless speed adjustment and can improve fuel use.
- Operating weight around 9 t supports traction and ballast for heavy implements.
- Rated PTO output of 221 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: $75,348–$226,044 USD.
Trade-offs
- 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
- Light-duty or compact-property-only use
Challenger MT665B — Pros and Cons
Pros
- Top-tier power for maximum productivity and large implements.
- CVT transmission allows seamless speed adjustment and can improve fuel use.
- Operating weight around 9 t supports traction and ballast for heavy implements.
- Rated PTO output of 221 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: $75,348–$226,044 USD.
Cons
- Loader and front attachment suitability is limited by design; best for lighter loader duties.
Used market insights
Estimated used price
$75,348 – $226,044 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 Challenger MT665B, verify hours, hydraulic condition, and loader/backhoe compatibility. Confirm weight for transport and permits.
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Challenger MT665B Videos
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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)
- 260 HP (194 kW)
- Fuel Type
- Diesel
- Cooling
- Liquid
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Frequently asked questions
What fuel does the Challenger MT665B use?
The Challenger MT665B uses diesel fuel.
What is the weight of the Challenger MT665B?
Operating weight is approximately 9,203 kg (9 tons).
Where can I find used Challenger MT665B listings?
This page links to international marketplaces where you can search for used Challenger MT665B tractors; listings are provided by third parties.
How much does a used Challenger MT665B cost?
Used Challenger MT665B tractors are often listed in the range of $75,348–$226,044 USD (high confidence). Actual prices depend on hours, condition, and region.
Does the Challenger MT665B have a PTO?
Yes. The Challenger MT665B has a rear PTO rated at 221 HP at 540 rpm.
What is the horsepower of the Challenger MT665B?
The Challenger MT665B is rated at 260 HP (gross) (194 kW).
Challenger MT665B: Complete Tractor Specifications and Technical Data
Overview
The Challenger MT665B is a industrial tractor from Challenger 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 260 HP diesel engine with cvt transmission, delivering reliable performance. Our tractor database provides detailed specifications and technical data for the Challenger MT665B, making it easy to compare with other models in the Challenger lineup or across different brands.
Engine Specifications
The Challenger MT665B is powered by a diesel engine that delivers 260 HP for property maintenance. Tractor horsepower is a critical specification that determines the machine's ability to handle various implements. The engine specifications demonstrate Challenger's engineering expertise in creating efficient powerplants.
- Maximum Power: 260 HP (194 kW)
- Fuel Type: Diesel
- Cooling System: Liquid-cooled
Transmission Specifications
The Challenger MT665B features a cvt 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 Challenger MT665B's specifications help determine if the tractor fits your operational requirements.
- Wheelbase: 3076 mm (121.1 in)
- Weight: 9203 kg (20.289 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: 221 HP (165 kW)
Performance and Applications
The Challenger MT665B delivers 260 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 Challenger MT665B matches your operational demands.
Technical Data Summary
This guide provides complete technical data and detailed specifications for the Challenger MT665B. Key specifications include: 260 HP engine, cvt transmission, 221 HP PTO, and 9203 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 Challenger MT665B is a versatile lawn tractor from Challenger, designed for property maintenance. With its 260 HP diesel engine and cvt transmission, weighing 9 tons, it provides efficient operation for landscaping work. This comprehensive guide offers all essential Challenger MT665B tractor data and specifications for informed decision-making.
Conclusion
With 260 HP, the Challenger MT665B 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 MT665B against other tractors in the same HP range before making a final decision.