John Deere 40A Specs, Price and Review (2026)
Agricultural · 34 HP · Best for small farms and fuel efficiency
Power
34 HP (25 kW)
Fuel
Diesel
Transmission
Manual
PTO
29 HP @ 540 rpm
Weight
1,100 kg (1 t)
New price (est.)
$25,459 – $38,189
Est. used price
$8,911 – $26,732
Overview
As a agricultural tractor with 34 HP of power, the John Deere 40A is built for small farms, landscaping, and light loader duties. As a John Deere tractor, the 40A continues the brand's reputation for reliability and field performance. Below are the full 40A specs: engine specifications, transmission details, PTO ratings, hydraulic system data, and dimensions — everything you need for a buying decision. The 40A review data on this page is generated from specifications, helping you understand how it compares to similar tractors in its class. We include 40A price estimates — both new and used — to help you understand the cost of ownership and compare it against alternatives. Use the comparison tool below to set the John Deere 40A against similar models, or browse the alternatives section for other tractors in this HP range.
TractorFitâ„¢ Analysis
Overall score
Based on specs and use-case fit for John Deere 40A.
A utility class that balances capability and operating cost for small to mid-size operations. 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 34 HP, 29 HP PTO, 1 t operating weight, estimated used range $8,911–$26,732, 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.
- ✓Strong value for money relative to power and features.
- ✓Reliable manual transmission with low maintenance cost.
Cons
- •Limited power for large-scale work or heavy equipment.
- •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.
John Deere 40A 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, tight spaces and transport on smaller trailers. The suitability sub-scores allow an objective comparison of performance across farm sizes and use types. With 34 HP and around 1 tons weight, it fits small and mid-size farms where maneuverability and running costs matter. Loader work rates 13/100; fuel efficiency index is 73/100. 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 (73/100) 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
- Engine size balances capability with operating cost.
- Manual transmission keeps design simple and ownership costs lower.
- Operating weight around 1 t aids maneuverability and transport.
- Rated PTO output of 29 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: $8,911–$26,732 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
- Small to mid-size hay work
- Loader and grading
- Mixed farming and estate use
- Fuel-conscious operation
- Mixed tasks and attachment use
Not ideal for
- Heavy, continuous loader work
- Low-maintenance-first buyers
- Large-acreage row-crop or heavy tillage
John Deere 40A — Pros and Cons
Pros
- Engine size balances capability with operating cost.
- Manual transmission keeps design simple and ownership costs lower.
- Operating weight around 1 t aids maneuverability and transport.
- Rated PTO output of 29 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: $8,911–$26,732 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
$8,911 – $26,732 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 John Deere 40A, 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: Cylinder count and displacement affect smoothness and repair complexity; compare to similar models in the same HP band.
Engine
- Maximum Power (Gross)
- 34 HP (25 kW)
- Fuel Type
- Diesel
- Cooling
- Liquid
Documentation & Resources
Compare with similar models
Better Alternatives
Frequently asked questions
How much does a used John Deere 40A cost?
Used John Deere 40A tractors are often listed in the range of $8,911–$26,732 USD (high confidence). Actual prices depend on hours, condition, and region.
Does the John Deere 40A have a PTO?
Yes. The John Deere 40A has a rear PTO rated at 29 HP at 540 rpm.
What is the horsepower of the John Deere 40A?
The John Deere 40A is rated at 34 HP (gross) (25 kW).
Is the John Deere 40A good for loader work?
TractorFit scores rate this model as less suited for loader work (13/100). Check front axle capacity and loader compatibility for your intended use.
What is the John Deere 40A best used for?
As a farm tractor, the John Deere 40A is suited to fieldwork, PTO-driven implements, hay work, and general estate or small-farm tasks.
What type of transmission does the John Deere 40A have?
The John Deere 40A uses a manual transmission.
What should I check when buying a used John Deere 40A?
Verify hours, condition, service history, PTO operation, hydraulics, and tire wear. Confirm weight and dimensions if you need to transport or match implements.
John Deere 40A: Complete Tractor Specifications and Technical Data
Overview
The John Deere 40A is a agricultural tractor from John Deere 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 34 HP diesel engine with manual transmission, delivering reliable performance. Our tractor database provides detailed specifications and technical data for the John Deere 40A, making it easy to compare with other models in the John Deere lineup or across different brands.
Engine Specifications
The John Deere 40A is powered by a diesel engine that delivers 34 HP for agricultural tasks. Tractor horsepower is a critical specification that determines the machine's ability to handle various implements. The engine specifications demonstrate John Deere's engineering expertise in creating efficient powerplants.
- Maximum Power: 34 HP (25 kW)
- Fuel Type: Diesel
- Cooling System: Liquid-cooled
Transmission Specifications
The John Deere 40A 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 John Deere 40A's specifications help determine if the tractor fits your operational requirements.
- Weight: 1100 kg (2425 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: 29 HP (22 kW)
Performance and Applications
The John Deere 40A delivers 34 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 John Deere 40A matches your operational demands.
Technical Data Summary
This guide provides complete technical data and detailed specifications for the John Deere 40A. Key specifications include: 34 HP engine, manual transmission, 29 HP PTO, and 1100 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 John Deere 40A is a reliable agricultural tractor from John Deere, designed for modern farming operations. With its 34 HP diesel engine and manual transmission, weighing 1 tons, it provides dependable performance for agricultural tasks. This comprehensive guide offers all essential John Deere 40A tractor data and specifications for informed decision-making.
Conclusion
With 34 HP, the John Deere 40A is a solid choice for operators who need Small to mid-size hay work, Loader and grading, Mixed farming and estate 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 40A against other tractors in the same HP range before making a final decision.