John Deere 6125D Specs, Price and Review (2026)
Agricultural · 123 HP · Best for fuel efficiency and versatility
Power
123 HP (92 kW)
Fuel
Diesel
Transmission
Manual
PTO
105 HP @ 540 rpm
Weight
3,870 kg (4 t)
New price (est.)
$92,102 – $138,154
Est. used price
$32,236 – $96,708
Overview
The John Deere 6125D is a 123 HP agricultural tractor built for large-acreage farming, heavy tillage, and large-implement compatibility. The John Deere tractor lineup is known for durability, and the 6125D is no exception. This page provides detailed John Deere 6125D specifications — engine, transmission, PTO, hydraulics, weight, and dimensions — sourced from manufacturer technical data. Whether you need a 6125D review for a purchase decision or a trade-in comparison, this page covers performance analysis and suitability scoring. For John Deere 6125D price guidance, we provide new price estimates and used market ranges so you can budget accurately before contacting a dealer. Compare the John Deere 6125D with similar tractors using the links below, or use our TractorFit™ analysis to see how it scores for your specific operation.
TractorFit™ Analysis
Overall score
Based on specs and use-case fit for John Deere 6125D.
With its specs, the high-power class for producers who need strong PTO and hydraulic performance. 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 123 HP, 105 HP PTO, 4 t operating weight, estimated used range $32,236–$96,708, and overall suitability 54/100.
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.
- •Basic hydraulic system; limited for demanding implements.
John Deere 6125D receives an overall suitability score of 54/100 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 30/100; fuel efficiency index is 74/100. 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 (58/100) reflects value for money. It has relative limitations in: small farm, large 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
- Engine output suits heavy tillage and large hay equipment.
- Manual transmission keeps design simple and ownership costs lower.
- 4 t operating weight fits a broad range of implements and conditions.
- Rated PTO output of 105 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: $32,236–$96,708 USD.
- Farm orientation targets fieldwork, PTO work, and reliability.
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
- Heavy tillage and large hay
- High-capacity harvesting
- Large-acreage farming
- Fuel-conscious operation
- Mixed tasks and attachment use
Not ideal for
- Heavy, continuous loader work
- Low-maintenance-first buyers
John Deere 6125D — Pros and Cons
Pros
- Engine output suits heavy tillage and large hay equipment.
- Manual transmission keeps design simple and ownership costs lower.
- 4 t operating weight fits a broad range of implements and conditions.
- Rated PTO output of 105 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: $32,236–$96,708 USD.
- Farm orientation targets fieldwork, PTO work, and reliability.
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
$32,236 – $96,708 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 6125D, hours and service history matter. Confirm PTO and hydraulic operation, tire condition, and that implements match your HP and category.
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John Deere 6125D Videos
Community Discussions
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)
- 123 HP (92 kW)
- Fuel Type
- Diesel
- Cooling
- Liquid
Documentation & Resources
Compare with similar models
Better Alternatives
Frequently asked questions
What fuel does the John Deere 6125D use?
The John Deere 6125D uses diesel fuel.
What is the weight of the John Deere 6125D?
Operating weight is approximately 3,870 kg (4 tons).
Where can I find used John Deere 6125D listings?
This page links to international marketplaces where you can search for used John Deere 6125D tractors; listings are provided by third parties.
How much does a used John Deere 6125D cost?
Used John Deere 6125D tractors are often listed in the range of $32,236–$96,708 USD (high confidence). Actual prices depend on hours, condition, and region.
Does the John Deere 6125D have a PTO?
Yes. The John Deere 6125D has a rear PTO rated at 105 HP at 540 rpm.
What is the horsepower of the John Deere 6125D?
The John Deere 6125D is rated at 123 HP (gross) (92 kW).
John Deere 6125D: Complete Tractor Specifications and Technical Data
Overview
The John Deere 6125D 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 123 HP diesel engine with manual transmission, delivering reliable performance. Our tractor database provides detailed specifications and technical data for the John Deere 6125D, making it easy to compare with other models in the John Deere lineup or across different brands.
Engine Specifications
The John Deere 6125D is powered by a diesel engine that delivers 123 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: 123 HP (92 kW)
- Fuel Type: Diesel
- Cooling System: Liquid-cooled
Transmission Specifications
The John Deere 6125D 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 6125D's specifications help determine if the tractor fits your operational requirements.
- Wheelbase: 2350 mm (92.5 in)
- Weight: 3870 kg (8532 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: 105 HP (78 kW)
Performance and Applications
The John Deere 6125D delivers 123 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 6125D matches your operational demands.
Technical Data Summary
This guide provides complete technical data and detailed specifications for the John Deere 6125D. Key specifications include: 123 HP engine, manual transmission, 105 HP PTO, and 3870 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 6125D is a reliable agricultural tractor from John Deere, designed for modern farming operations. With its 123 HP diesel engine and manual transmission, weighing 4 tons, it provides dependable performance for agricultural tasks. This comprehensive guide offers all essential John Deere 6125D tractor data and specifications for informed decision-making.
Conclusion
With 123 HP, the John Deere 6125D is a model worth considering carefully for operators who need Heavy tillage and large hay, High-capacity harvesting, Large-acreage farming. Check the price range shown above and compare with similar models to ensure it fits your budget. Use our comparison tool to stack the 6125D against other tractors in the same HP range before making a final decision.