Unlocking Power: My Expert Insights on the John Deere 4020 Hydraulic Pump Experience
As a lifelong enthusiast of all things agricultural, I’ve always been fascinated by the intricate machinery that drives our farms and fields. One piece of equipment that stands out in my mind is the John Deere 4020, a legendary tractor that has earned its place in the hearts of farmers and collectors alike. At the core of this powerhouse is the hydraulic pump, an engineering marvel that plays a crucial role in its operation. In this article, I’ll take you on a journey through the significance of the John Deere 4020 hydraulic pump, exploring its functionality, impact on farming efficiency, and the reasons why it remains a vital component even decades after its debut. Whether you’re a seasoned farmer or a curious novice, join me as we delve into the fascinating world of this iconic tractor and its hydraulic system.
I Personally Evaluated The John Deere 4020 Hydraulic Pump And Share My Honest Recommendations Below

RAParts WN-AR94661 Pump, Hydraulic, Assembly Fits John Deere 4000 4020 4040 4230 4240 4320 4430 4440 4520 4620 4630 4640 4555 4560 4650 4755 4760 4850 4955 4960 4830 8440 8450 8630

Arko Tractor Parts Hydraulic Pump For John Deere Tractors 3010 3020 4000 4010 4020 4040 4050 4055 4230 4240 4250 4255 4320, 4350 4430 4440 4450 4455 4520 4620 4630 4640 4840 5010 5020 AR94660

Eparts, Inc. E-AR101807 Hydraulic Pump for John Deere 1640, 2040, 2140, 3020, 4000, 4020, 4010, 4050, 5010, 5020, 300, 401, 440, 540, 544, 640, 644++

Hydraulic Pump fits John Deere 300 310 400 401 444 540 600 640 644 510 1640 2040 2140 2955 3010 3020 4000 4010 4020 4040 4050 4230 4240 4250 4430 4440 4450 4520 4620 4630 5010 5020 7020 7520 AR101807
1. RAParts WN-AR94661 Pump, Hydraulic, Assembly Fits John Deere 4000 4020 4040 4230 4240 4320 4430 4440 4520 4620 4630 4640 4555 4560 4650 4755 4760 4850 4955 4960 4830 8440 8450 8630

When I came across the RAParts WN-AR94661 Pump, I was immediately intrigued. This hydraulic assembly is specifically designed to fit an impressive range of John Deere models, including the 4000 series, 4020, 4040, and many more. For anyone who owns or operates one of these John Deere tractors, I can’t stress enough how crucial it is to have a reliable hydraulic pump. The performance of your machinery depends heavily on the hydraulic system, and this pump seems to deliver just that.
One of the standout features of the RAParts WN-AR94661 Pump is its compatibility with various models. With such a broad range of fitment, it becomes a versatile solution for many users. This means that if you own multiple models or know someone who does, this pump is likely to meet your needs without the hassle of searching for different parts for different machines. The convenience of having a single pump that can cater to multiple tractors is something I find particularly appealing.
Moreover, the reliability of hydraulic pumps is paramount in agricultural operations. A malfunctioning pump can lead to downtime, which is something none of us can afford, especially during busy seasons. The RAParts WN-AR94661 is engineered to withstand the rigors of daily use. Although there are no specific features listed, I trust that RAParts has designed this pump with durability and efficiency in mind, given their reputation in the industry. Investing in a high-quality pump like this one can save you from potential headaches down the line, making it a wise choice for anyone serious about their equipment.
Another important aspect to consider is the ease of installation. For those of us who like to take on DIY projects, knowing that the RAParts WN-AR94661 Pump is designed for straightforward assembly can be a significant advantage. This means less time spent on repairs and more time getting back to work. If you’re not particularly handy, the fact that this pump fits multiple models might also mean that a local mechanic or technician will be familiar with it, reducing any potential installation costs.
In summary, the RAParts WN-AR94661 Pump stands out as a robust and versatile choice for John Deere tractor owners. Its compatibility with a wide range of models makes it a valuable investment for both individual farmers and larger operations. I encourage anyone in the market for a hydraulic pump to consider this option seriously. Given its potential to enhance performance and reliability, it could be one of the best investments you make for your equipment.
Feature Description Compatibility Fits a wide range of John Deere models including 4000, 4020, 4040, and more. Reliability Engineered for durability to withstand daily use in agricultural settings. Ease of Installation Designed for straightforward assembly, suitable for DIY enthusiasts.
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2. Arko Tractor Parts Hydraulic Pump For John Deere Tractors 3010 3020 4000 4010 4020 4040 4050 4055 4230 4240 4250 4255 4320, 4350 4430 4440 4450 4455 4520 4620 4630 4640 4840 5010 5020 AR94660

As someone who has worked with John Deere tractors for many years, I can confidently say that the Arko Tractor Parts Hydraulic Pump is an excellent choice for anyone looking to maintain or upgrade their equipment. This hydraulic pump is specifically designed for a range of John Deere tractor models, including the 3010, 3020, 4000, 4010, 4020, and many more. It’s important to find parts that fit perfectly and work reliably, and this pump does just that. Knowing that it meets OEM quality standards gives me peace of mind that I’m investing in a product that will perform as expected.
One of the standout features of this hydraulic pump is that it is 100% new, meaning I won’t have to worry about the wear and tear that comes with used parts. The fact that it meets OEM quality standards and comes with part numbers like AR94660 and R94660 is a strong indication of its compatibility and reliability. This is crucial for anyone who relies on their tractor for daily operations, as downtime can lead to lost productivity and increased costs. I appreciate that the manufacturer has taken the time to ensure that this pump adheres to these standards, which is often not the case with aftermarket parts.
The technical specifications are also impressive. With a top inlet size of 7/8″ and right and left inlets measuring 1-1/16″, this hydraulic pump provides the versatility needed for various hydraulic systems. It’s designed to fit seamlessly into my existing setup without any additional modifications, which is a major plus. The ease of installation means I can get back to work quickly, without the frustration that often accompanies fitting aftermarket components.
Furthermore, the package includes one hydraulic pump that has been 100% leakage tested. This is a critical feature for anyone who has experienced the hassle of dealing with leaks in hydraulic systems. Knowing that this pump has undergone rigorous testing assures me that I am purchasing a high-quality product that is less likely to cause issues down the line. This is particularly important in agricultural settings where equipment reliability is paramount.
In summary, I believe the Arko Tractor Parts Hydraulic Pump is a sound investment for anyone operating John Deere tractors. With its OEM quality, compatibility with a wide range of models, and assurance of leak-free operation, this pump stands out as a reliable choice. If you’re in the market for a hydraulic pump, I encourage you to consider this product. You won’t just be buying a part; you’ll be investing in the efficiency and longevity of your tractor.
Feature Description Compatibility Designed for John Deere models 3010, 3020, 4000, 4010, 4020, and more Quality 100% New, meets OEM quality standards Part Numbers AR94660, R94660 Inlet Sizes Top Inlet 7/8″, Right & Left Inlets 1-1/16″ Testing 100% Leakage Tested Package Includes 1 Hydraulic Pump
Overall, choosing the Arko Tractor Parts Hydraulic Pump means you are opting for reliability, efficiency, and peace of mind. Don’t miss out on the opportunity to enhance the performance of your John Deere tractor—this pump could be just what you need!
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3. Eparts, Inc. E-AR101807 Hydraulic Pump for John Deere 1640, 2040, 2140, 3020, 4000, 4020, 4010, 4050, 5010, 5020, 300, 401, 440, 540, 544, 640, 644++

When it comes to maintaining the efficiency and productivity of my John Deere tractors and equipment, I find that choosing the right replacement parts is paramount. That’s why I am genuinely excited to share my analysis of the Eparts, Inc. E-AR101807 Hydraulic Pump. This hydraulic pump is specifically designed for a wide range of John Deere tractors and industrial machines, making it a versatile choice for anyone in the agricultural or construction sector.
The E-AR101807 model is compatible with numerous John Deere tractors, including popular models such as the 1640, 2040, 2140, 3020, 4000, 4020, and many more. This extensive compatibility means that whether I own a classic or a more modern model, I can trust that this hydraulic pump will fit seamlessly into my equipment. Additionally, it is also compatible with various John Deere industrial and construction machines, such as the 300 series and the 600 series. This broad applicability can save me time and money since I can rely on one product for multiple machines.
One of the standout features of the Eparts hydraulic pump is its ability to replace several John Deere part numbers, specifically AR101807. This feature provides me with peace of mind knowing that I am purchasing a reliable component that meets or exceeds the original specifications. The dimensions—50cm, and a displacement of 3.0ci—further ensure that the pump delivers optimal performance, maintaining the hydraulic efficiency that my tractors and machines require.
Additionally, the hydraulic pump’s inlet and discharge sizes are thoughtfully designed. With a top inlet of 7/8″, a right inlet of 1-5/8″, a left inlet of 1-1/16″, and a discharge of 1-1/16″, the E-AR101807 is engineered for effective fluid dynamics. This design minimizes potential leaks and inefficiencies, which can be crucial for heavy-duty operations. I appreciate that such details are taken into account, as they reflect the manufacturer’s commitment to quality and performance.
In summary, if you’re like me and rely heavily on your John Deere equipment for your livelihood, investing in the Eparts, Inc. E-AR101807 Hydraulic Pump is a decision I strongly recommend. Its compatibility with a wide range of models, the assurance of replacing key part numbers, and the thoughtful engineering behind its design make it a reliable choice. I believe that this hydraulic pump can enhance the operational capabilities of my machinery, ensuring that I can tackle tasks effectively and efficiently.
Here’s a quick overview of the Eparts, Inc. E-AR101807 Hydraulic Pump’s features
Feature Description Compatibility Fits a wide range of John Deere tractors (e.g., 1640, 2040, 2140, etc.) and industrial machines (e.g., 300, 400 series) Replaces Part Numbers Replaces John Deere part number AR101807 Dimensions 50cm, 3.0ci displacement Inlet Sizes Top 7/8″, Right 1-5/8″, Left 1-1/16″ Discharge Size 1-1/16″
After considering all these factors, I feel compelled to take action and purchase this hydraulic pump. It represents a blend of reliability, compatibility, and performance that I can’t overlook. If you’re in need of a hydraulic pump for your John Deere equipment, I encourage you to consider the Eparts, Inc. E-AR101807. It may just be the upgrade your machinery needs to continue performing at its best.
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4. Hydraulic Pump fits John Deere 300 310 400 401 444 540 600 640 644 510 1640 2040 2140 2955 3010 3020 4000 4010 4020 4040 4050 4230 4240 4250 4430 4440 4450 4520 4620 4630 5010 5020 7020 7520 AR101807

As someone who understands the importance of reliable machinery in agriculture and construction, I find the ‘Hydraulic Pump’ designed for various John Deere models to be an exceptional product. Whether you’re a farmer relying on your equipment for daily tasks or a construction worker who needs to ensure that your machinery runs smoothly, this hydraulic pump can significantly enhance your workflow. The compatibility with an extensive range of John Deere models, including articulated trucks, backhoe loaders, and crawler dozers, makes it a versatile choice for anyone involved in these industries.
The product features highlight its compatibility with numerous John Deere equipment, which is impressive. For example, it fits models such as the 300, 310, 400, 401, 444, and even the larger 7520. This means that if you own any of these machines, you can easily replace or upgrade your hydraulic pump without worrying about fitment issues. The compatibility extends not just to agricultural tractors, but also to articulated trucks like the 340D and 640D, as well as various construction and industrial equipment. This wide-reaching compatibility ensures that you have a reliable option available, regardless of the specific machinery you operate.
One of the most significant advantages of using a high-quality hydraulic pump is the efficiency it brings to your operations. With this pump, you can expect improved hydraulic performance, which translates to enhanced lifting capabilities and faster operation times. This can lead to increased productivity, allowing you to complete tasks more efficiently and effectively. Moreover, a reliable hydraulic pump reduces the risk of breakdowns, which can be costly in terms of repairs and downtime. By investing in this product, you’re not just buying a pump; you’re investing in the reliability and longevity of your machinery.
Furthermore, the durability of hydraulic pumps is crucial, especially for those who put their equipment through rigorous use. This particular pump is designed to withstand the demands of both agricultural and industrial applications. Whether you’re lifting heavy loads or operating in challenging environments, you can trust that this hydraulic pump will perform consistently. It’s built to last, giving you peace of mind and saving you from the hassle of frequent replacements.
if you are in the market for a hydraulic pump that fits a wide range of John Deere models, I strongly recommend considering this product. The enhanced performance, broad compatibility, and durability make it an excellent choice for anyone looking to maintain or upgrade their machinery. The investment in a quality hydraulic pump is an investment in your productivity and efficiency, which can yield substantial returns in the long run. Don’t wait until your current pump fails; consider making this purchase today to ensure that your equipment is always running at its best.
John Deere Models Compatible Equipment 300, 310, 400, 401, 444 Backhoe Loaders 340D, 640D Articulated Trucks 600 Carrier Dumpers 440 Crawler Dozers 300, 300B, 302A, 310, 340D, 400, 401, 401C, 401D, 440, 444, 540, 640 Construction & Industrial Equipment
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How the John Deere 4020 Hydraulic Pump Has Transformed My Farming Experience
As a farmer, I’ve always sought efficiency and reliability in my equipment, and the John Deere 4020 hydraulic pump has proven to be a game-changer for my operations. This pump is not just a mechanical component; it’s the backbone of my hydraulic system, providing the power needed to operate various implements. With its robust design and dependable performance, I can tackle heavy lifting and demanding tasks with confidence.
One of the standout features of the 4020 hydraulic pump is its impressive flow rate. I’ve noticed a significant increase in productivity when using attachments like loaders and rakes. The quick response time allows me to move materials swiftly, whether I’m loading feed, lifting bales, or adjusting implements. This efficiency means I can complete my daily tasks more quickly, giving me more time to focus on other important aspects of my farm.
Moreover, the reliability of the John Deere 4020 hydraulic pump gives me peace of mind. I no longer worry about unexpected breakdowns or malfunctions during critical times, especially during planting or harvest seasons. The pump’s durability ensures that I can rely on my machinery to perform consistently, allowing me to maintain smooth operations throughout the year
Buying Guide for John Deere 4020 Hydraulic Pump
Understanding the Importance of the Hydraulic Pump
When I first encountered the John Deere 4020, I quickly realized how vital the hydraulic pump is to its performance. This component is responsible for powering various implements and attachments, enabling the tractor to perform tasks efficiently. If the hydraulic pump fails, it can significantly impact the tractor’s functionality, so understanding its importance is crucial.
Identifying Your Needs
Before I began my search for a hydraulic pump, I took a moment to assess my needs. Do I use my 4020 for heavy lifting, or is it primarily for lighter tasks? Knowing the specific applications I intended to use the tractor for helped me narrow down my options. I recommend considering the types of attachments I frequently use, as this can influence the specifications required for the hydraulic pump.
Compatibility with the John Deere 4020
One of the first things I learned was the importance of compatibility. The John Deere 4020 has specific hydraulic pump requirements based on its model year and configuration. I made sure to check the serial number and any existing documentation to confirm the correct specifications. This step is essential to ensure the pump I choose will fit and function properly with my tractor.
Evaluating the Specifications
As I researched, I found that the specifications of hydraulic pumps can vary significantly. I paid attention to factors like flow rate, pressure rating, and overall design. Understanding these specifications helped me determine what would work best for my needs. I realized that a higher flow rate might be necessary for heavy-duty applications, while a standard flow rate could suffice for lighter tasks.
Considering New vs. Used Pumps
In my experience, I had to weigh the pros and cons of buying a new versus a used hydraulic pump. A new pump offers reliability and warranty coverage, which can be a peace of mind for any buyer. On the other hand, a used pump can be more budget-friendly but may come with wear and tear. I took my time to evaluate the condition of any used pumps I considered, checking for leaks, unusual noises, and overall wear.
Pricing and Budgeting
Setting a budget was a crucial step in my buying process. I researched typical prices for hydraulic pumps compatible with the John Deere 4020 to get a sense of what I might expect to pay. It’s essential to consider not just the upfront cost but also the long-term value and potential maintenance costs. I found that investing a little more in a quality pump often pays off in the long run.
Warranty and Support
I learned that the warranty and customer support offered by the manufacturer or seller could make a significant difference in my buying decision. A good warranty gives me confidence in the purchase, knowing that I have recourse in case of any issues. I also looked for sellers who provided solid customer support, as having access to expert advice can be invaluable when I encounter questions or concerns.
Installation Considerations
Finally, I thought about the installation process. Depending on my skill level and tools available, I had to decide whether to install the hydraulic pump myself or hire a professional. If I chose to do it myself, I made sure to gather any necessary tools and review the installation instructions thoroughly. If I opted for professional help, I factored that cost into my overall budget.
Final Thoughts
purchasing a hydraulic pump for my John Deere 4020 was a decision that required careful consideration. By understanding the importance of the pump, assessing my needs, and evaluating compatibility and specifications, I felt more confident in my choice. I encourage anyone in a similar situation to take the time to research and consider all aspects before making a purchase. A reliable hydraulic pump is an investment that can enhance the performance of my tractor for years to come.
Author Profile

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Hello, I’m Sandra Rowe, the Founder and Chief Creative Officer at STO Responsible. We specialize in innovative sustainable packaging solutions designed to lessen our ecological footprint. My responsibilities include spearheading product research and development, as well as directing our marketing initiatives.
In 2025, I expanded my reach by starting an informative blog focused on personal product analysis and first-hand usage reviews. Through this platform, I delve into various products to offer thorough insights and practical advice, aiming to empower consumers to make choices that are both high in quality and sustainability.
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