AGCO Allis 6690 Specs, Price and Review (2026)
Agricultural · 86.91 HP · Best for small farms and versatility
Power
86.91 HP (65 kW)
Fuel
Diesel
Transmission
Manual
PTO
74 HP @ 540 rpm
Weight
3,350 kg (3 t)
New price (est.)
$50,060 – $75,090
Est. used price
$17,521 – $52,563
Overview
TractorFitâ„¢ Analysis
Overall score
Based on specs and use-case fit for AGCO Allis 6690.
Positioned in the 60–120 HP range that fits full-time farming and large-property management. Manual transmission is a proven choice for operators who prefer direct gear selection. As a farm tractor, it is built for fieldwork, PTO-driven implements, and all-day reliability. Rear PTO capability allows use of mowers, tillers, and other PTO-driven equipment. Key specs include 86.91 HP, 74 HP PTO, 3 t operating weight, estimated used range $17,521–$52,563, and overall suitability 55/100.
Higher = simpler
Pros
- ✓Well suited to small and mid-size farms for power and maneuverability.
- ✓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.
- ✓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.
AGCO Allis 6690 receives an overall suitability score of 55/100 from the TractorSuitability™ Engine. Ideal for small to mid-size farms (roughly 5–40 ha), light fieldwork, mowing, and properties where maneuverability matters, 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. With 86.91 HP and around 3 tons weight, it fits small and mid-size farms where maneuverability and running costs matter. Loader work rates 27/100; fuel efficiency index is 70/100. 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 stands out in: small farm. It has relative limitations in: large farm, loader. Overall, it offers a balanced 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
- Strong engine power for PTO work and heavy drawbar loads.
- 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 74 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: $17,521–$52,563 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
- Row-crop and hay operations
- Feeding and material handling
- Full-season fieldwork
- Fuel-conscious operation
- Mixed tasks and attachment use
Not ideal for
- Heavy, continuous loader work
- Low-maintenance-first buyers
AGCO Allis 6690 — Pros and Cons
Pros
- Strong engine power for PTO work and heavy drawbar loads.
- 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 74 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: $17,521–$52,563 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
$17,521 – $52,563 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 AGCO Allis 6690, 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: Engine specs define power for PTO work, drawbar load, and fuel use. Higher displacement often means more torque at lower rpm.
Engine
- Maximum Power (Gross)
- 86.91 HP (65 kW)
- Fuel Type
- Diesel
- Cooling
- Liquid
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Frequently asked questions
What fuel does the AGCO Allis 6690 use?
The AGCO Allis 6690 uses diesel fuel.
What is the weight of the AGCO Allis 6690?
Operating weight is approximately 3,350 kg (3 tons).
Where can I find used AGCO Allis 6690 listings?
This page links to international marketplaces where you can search for used AGCO Allis 6690 tractors; listings are provided by third parties.
How much does a used AGCO Allis 6690 cost?
Used AGCO Allis 6690 tractors are often listed in the range of $17,521–$52,563 USD (high confidence). Actual prices depend on hours, condition, and region.
Does the AGCO Allis 6690 have a PTO?
Yes. The AGCO Allis 6690 has a rear PTO rated at 74 HP at 540 rpm.
What is the horsepower of the AGCO Allis 6690?
The AGCO Allis 6690 is rated at 86.91 HP (gross) (65 kW).
AGCO Allis 6690: Complete Tractor Specifications and Technical Data
Overview
The AGCO Allis 6690 is a agricultural tractor from AGCO 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 86.91 HP diesel engine with manual transmission, delivering reliable performance. Our tractor database provides detailed specifications and technical data for the AGCO Allis 6690, making it easy to compare with other models in the AGCO lineup or across different brands.
Engine Specifications
The AGCO Allis 6690 is powered by a diesel engine that delivers 86.91 HP for agricultural tasks. Tractor horsepower is a critical specification that determines the machine's ability to handle various implements. The engine specifications demonstrate AGCO's engineering expertise in creating efficient powerplants.
- Maximum Power: 86.91 HP (65 kW)
- Fuel Type: Diesel
- Cooling System: Liquid-cooled
Transmission Specifications
The AGCO Allis 6690 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 AGCO Allis 6690's specifications help determine if the tractor fits your operational requirements.
- Wheelbase: 2357 mm (92.8 in)
- Weight: 3350 kg (7385 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: 74 HP (55 kW)
Performance and Applications
The AGCO Allis 6690 delivers 86.91 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 AGCO Allis 6690 matches your operational demands.
Technical Data Summary
This guide provides complete technical data and detailed specifications for the AGCO Allis 6690. Key specifications include: 86.91 HP engine, manual transmission, 74 HP PTO, and 3350 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 AGCO Allis 6690 is a reliable agricultural tractor from AGCO, designed for modern farming operations. With its 86.91 HP diesel engine and manual transmission, weighing 3 tons, it provides dependable performance for agricultural tasks. This comprehensive guide offers all essential AGCO Allis 6690 tractor data and specifications for informed decision-making.
Conclusion
With 86.91 HP, the AGCO Allis 6690 is a solid choice 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 Allis 6690 against other tractors in the same HP range before making a final decision.