John Deere 6420 Specs, Price and Review (2026)
Agricultural · 110 HP · Best for versatility and fuel efficiency
Power
110 HP (82 kW)
Fuel
Diesel
Transmission
Manual
PTO
94 HP @ 540 rpm
Weight
5,039 kg (5 t)
New price (est.)
$82,368 – $123,552
Est. used price
$28,829 – $86,486
Overview
The John Deere 6420 sits in the 60–120 HP mid-range power class and is aimed at large-acreage farming, heavy tillage, and large-implement compatibility. John Deere tractors are widely used across farm operations, and the 6420 represents a strong entry in the 60–120 HP mid-range segment. On this page you will find complete John Deere 6420 specs including engine data, transmission type, hydraulic lift capacity, PTO output, dimensions, and operating weight. Use the John Deere 6420 review sections on this page — TractorFit analysis, pros and cons, and use-case ratings — to judge suitability before purchasing. John Deere 6420 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 John Deere 6420 data in one place — from specs and pricing to suitability ratings and direct comparisons with competing models.
TractorFitâ„¢ Analysis
Overall score
Based on specs and use-case fit for John Deere 6420.
This model sits in the mainstream farm segment for fieldwork, feeding, and material handling. 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 110 HP, 94 HP PTO, 5 t operating weight, estimated used range $28,829–$86,486, and overall suitability 53/100.
Higher = simpler
Pros
- ✓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.
John Deere 6420 receives an overall suitability score of 53/100 from the TractorSuitabilityâ„¢ Engine. mixed use with multiple PTO and hydraulic implements. 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 68/100. 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: large 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
- Strong engine power for PTO work and heavy drawbar loads.
- Manual transmission keeps design simple and ownership costs lower.
- 5 t operating weight fits a broad range of implements and conditions.
- Rated PTO output of 94 HP supports mowers, hay tools, and other driven implements.
- Versatility index supports a wide range of tasks and attachments.
- Estimated used price range: $28,829–$86,486 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
- Row-crop and hay operations
- Feeding and material handling
- Full-season fieldwork
- Mixed tasks and attachment use
Not ideal for
- Heavy, continuous loader work
- Low-maintenance-first buyers
John Deere 6420 — Pros and Cons
Pros
- Strong engine power for PTO work and heavy drawbar loads.
- Manual transmission keeps design simple and ownership costs lower.
- 5 t operating weight fits a broad range of implements and conditions.
- Rated PTO output of 94 HP supports mowers, hay tools, and other driven implements.
- Versatility index supports a wide range of tasks and attachments.
- Estimated used price range: $28,829–$86,486 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
$28,829 – $86,486 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 6420, hours and service history matter. Confirm PTO and hydraulic operation, tire condition, and that implements match your HP and category.
Find Used Listings (International)
Find John Deere Dealers Near You
Authorized dealerships selling and servicing John Deere tractors.
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)
- 110 HP (82 kW)
- Fuel Type
- Diesel
- Cooling
- Liquid
Documentation & Resources
Compare with similar models
Better Alternatives
Frequently asked questions
Is the John Deere 6420 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 John Deere 6420 best used for?
As a farm tractor, the John Deere 6420 is suited to fieldwork, PTO-driven implements, hay work, and general estate or small-farm tasks.
What type of transmission does the John Deere 6420 have?
The John Deere 6420 uses a manual transmission.
What should I check when buying a used John Deere 6420?
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 John Deere 6420 use?
The John Deere 6420 uses diesel fuel.
What is the weight of the John Deere 6420?
Operating weight is approximately 5,039 kg (5 tons).
Where can I find used John Deere 6420 listings?
This page links to international marketplaces where you can search for used John Deere 6420 tractors; listings are provided by third parties.
How much does a used John Deere 6420 cost?
Used John Deere 6420 tractors are often listed in the range of $28,829–$86,486 USD (high confidence). Actual prices depend on hours, condition, and region.
John Deere 6420: Complete Tractor Specifications and Technical Data
Overview
The John Deere 6420 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 110 HP diesel engine with manual transmission, delivering reliable performance. Our tractor database provides detailed specifications and technical data for the John Deere 6420, making it easy to compare with other models in the John Deere lineup or across different brands.
Engine Specifications
The John Deere 6420 is powered by a diesel engine that delivers 110 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: 110 HP (82 kW)
- Fuel Type: Diesel
- Cooling System: Liquid-cooled
Transmission Specifications
The John Deere 6420 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 6420's specifications help determine if the tractor fits your operational requirements.
- Wheelbase: 2400 mm (94.5 in)
- Weight: 5039 kg (11.109 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: 94 HP (70 kW)
Performance and Applications
The John Deere 6420 delivers 110 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 6420 matches your operational demands.
Technical Data Summary
This guide provides complete technical data and detailed specifications for the John Deere 6420. Key specifications include: 110 HP engine, manual transmission, 94 HP PTO, and 5039 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 6420 is a reliable agricultural tractor from John Deere, designed for modern farming operations. With its 110 HP diesel engine and manual transmission, weighing 5 tons, it provides dependable performance for agricultural tasks. This comprehensive guide offers all essential John Deere 6420 tractor data and specifications for informed decision-making.
Conclusion
With 110 HP, the John Deere 6420 is a model worth considering carefully 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 6420 against other tractors in the same HP range before making a final decision.