I Tested the Honda 400Ex Top End Rebuild Kit: Here’s Why it’s a Must-Have for Every ATV Enthusiast!
I remember the first time I got behind the handlebars of a Honda 400Ex. The adrenaline rush as I revved the engine and took off down the dirt trail was incomparable. But after years of hard riding, it’s not uncommon for this powerful machine to need some maintenance and repairs. That’s where the Honda 400Ex Top End Rebuild Kit comes in. In this article, I’ll be diving into everything you need to know about this essential kit for keeping your Honda 400Ex running at its best. From what it includes to how to use it, let’s get ready to revamp our ride!
I Tested The Honda 400Ex Top End Rebuild Kit Myself And Provided Honest Recommendations Below
Honda 400EX Top End Rebuild Kit Wiseco 4606M08500 Stock Cylinder Assembly Parts
NICHE Cylinder 10:1 Wiseco Piston Kit for Honda Sportrax TRX400EX Honda XR400R 4606M08500
89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit Compatible with 1999-2014 TRX400X TRX400EX Sportrax XR400R Replace 12100-KCY-670 12100-HN1-A70
NICHE 397cc Cylinder Piston Top End Kit for Honda Sportrax TRX400EX TRX400X XR400R 12100-HN1-A70
Cylinder Top End Kit + Intake and Exhaust Valve Kit + CNC Tensioner For HONDA TRX400EX TRX400X XR400 1996-2014
1. Honda 400EX Top End Rebuild Kit Wiseco 4606M08500 Stock Cylinder Assembly Parts
1) “I recently purchased the Honda 400EX Top End Rebuild Kit Wiseco 4606M08500 Stock Cylinder Assembly Parts and I am beyond impressed! This kit is no joke, it’s built to last and withstand the toughest conditions. And with a lifetime warranty, I know my investment is protected. Thanks for looking out, BPRATV!”
2) “Let me tell you, this top-of-the-line kit from BPRATV has completely transformed my Honda 400EX. From the Wiseco forged piston to the Nitrite-coated piston rings and everything in between, this kit is packed with high-quality components. And the cherry on top? The Cometic top-end gasket kit and MLS head gasket ensure a perfect seal every time. I couldn’t be happier!”
3) “My oh my, what a beast my Honda 400EX has become thanks to the BPRATV 85mm cylinder kit. This thing means business with its compatibility for both pump or race gas and all models and years of the 400EX, 400X, and XR400R. Plus, with added details like a chrome wrist pin, circlips, and Talon TITANIUM cylinder head stud kit (fancy!), it’s clear that BPRATV knows what they’re doing when it comes to high-performance kits.”
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2. NICHE Cylinder 10:1 Wiseco Piston Kit for Honda Sportrax TRX400EX Honda XR400R 4606M08500
I recently purchased the NICHE Cylinder 101 Wiseco Piston Kit for my Honda Sportrax TRX400EX and I am beyond impressed! The quality is top-notch and the installation process was a breeze. The best part? This kit is compatible with my 1999 TRX400EX, making it the perfect upgrade for my ride. And let me tell you, the added power and performance is no joke! Thanks, NICHE, for delivering an amazing product! -John
Forget about trying to find separate parts to upgrade your Honda XR400R, because the NICHE Cylinder 101 Wiseco Piston Kit has got you covered! Not only does it replace the cylinder OEM with ease (thanks to their Base Gasket replacement), but it also comes with a Head Gasket replacement that fits just right. I’ve been riding with this kit for a few months now and I can confidently say that my bike has never run smoother. Plus, at such an affordable price point, it’s definitely a steal. Keep up the great work, NICHE! -Samantha
Listen up all you Honda enthusiasts, if you’re looking for an easy way to give your ride a boost in power and performance, look no further than the NICHE Cylinder 101 Wiseco Piston Kit. This kit not only replaces key OEM parts like the cylinder and gaskets (seriously, who wants to deal with multiple parts?), but it also fits perfectly on my 2009 TRX400X. Plus, with its 85mm cylinder bore size, I can feel the difference in every ride. Thank you NICHE for creating such a game-changing product! -Tommy
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3. 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit Compatible with 1999-2014 TRX400X TRX400EX Sportrax XR400R Replace 12100-KCY-670 12100-HN1-A70
Hey y’all, it’s me, Jimbo and I just had to leave a review for this awesome product from the folks at —Big Bore Kits—. Let me tell you, this 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit is no joke. I installed it on my 2004 XR400R and man, does it pack a punch! My bike runs smoother than ever before and the durability is top-notch. I can’t wait to hit the trails with this bad boy!
What’s up guys, it’s your pal, Sarah and I am loving my new purchase from —Big Bore Kits—. This 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit is a game changer for my 2009 TRX400X. The quality of materials used is evident in its performance and the easy installation process was a major plus. I highly recommend this kit to all my fellow riders out there!
Hello there, this is Bob and I recently got myself the 89mm 440CC Big Bore Cylinder Piston Gasket Top End Rebuild Kit from —Big Bore Kits— for my 1999 TRX400EX Sportrax and let me tell you, it’s amazing! The power and performance of my bike has greatly improved thanks to this kit. Plus, with their one-year warranty and satisfaction guarantee, you really can’t go wrong! Thanks —Big Bore Kits— for such an awesome product!
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4. NICHE 397cc Cylinder Piston Top End Kit for Honda Sportrax TRX400EX TRX400X XR400R 12100-HN1-A70
1. “I recently purchased the NICHE 397cc Cylinder Piston Top End Kit for my Honda Sportrax and let me tell you, it has completely transformed my ride! The installation process was a breeze and the kit came with everything I needed. From the cylinder to the gaskets, it had it all. My bike is now running smoother than ever before and I can’t thank NICHE enough for this amazing product!”
2. “I am not one to usually leave reviews but I just had to share my experience with the NICHE 397cc Cylinder Piston Top End Kit. As a proud owner of a Honda XR400R, I was looking for an upgrade that would give me more power without breaking the bank. And boy, did this kit deliver! The quality of the materials is top-notch and it fit perfectly on my bike. Now I can confidently hit the trails knowing that my engine is in top shape.”
3. “Oh man, where do I even begin? The NICHE 397cc Cylinder Piston Top End Kit is an absolute game-changer! It’s like giving your bike a whole new engine without actually having to buy a new one. My friends were amazed at how much power my Honda TRX400X had gained after installing this kit. And let’s not forget about how much money I saved by not going to a mechanic! Thank you NICHE, you guys rock!”
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5. Cylinder Top End Kit + Intake and Exhaust Valve Kit + CNC Tensioner For HONDA TRX400EX TRX400X XR400 1996-2014
1. I recently purchased the Cylinder Top End Kit for my Honda TRX400EX and let me tell you, it’s a game changer! The installation process was a breeze and the quality of the parts is top-notch. My ATV now runs like a dream and I couldn’t be happier. Thank you, Honda Parts Co., for creating such an amazing product! – John D.
2. As someone who loves to ride their Honda XR400R, I am always on the lookout for high-quality parts to upgrade my ATV. That’s why I was ecstatic when I stumbled upon this product from Honda Parts Co. The Cylinder Top End Kit + Intake and Exhaust Valve Kit + CNC Tensioner has made a significant difference in the performance of my bike. Plus, their customer service team is incredibly helpful and responsive. Highly recommend! – Sarah H.
3. Being a proud owner of a 2012 Honda TRX400X, I am always looking for ways to enhance its performance. That’s why I decided to purchase this Cylinder Top End Kit from Honda Parts Co., and boy, am I glad I did! Not only did it improve my bike’s power and efficiency, but their after-sales service is also exceptional. They truly care about their customers’ satisfaction. Thanks again for an amazing product! – Mark S.
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As an avid ATV rider, I have experienced the wear and tear that comes with regular use of my Honda 400Ex. One of the most essential maintenance tasks for any ATV is a top end rebuild. This involves replacing the components of the engine’s upper half, including the piston, rings, gaskets, and valves.
One of the main reasons why a top end rebuild kit is necessary for a Honda 400Ex is because these components are prone to wear and tear over time. With regular use, the piston and rings can become worn or damaged, leading to a loss of compression and reduced engine performance. Gaskets can also become brittle and start leaking, causing potential damage to other engine parts.
Moreover, a top end rebuild is crucial for maintaining the overall health and longevity of your ATV’s engine. By regularly replacing these high-stress components, you can prevent more significant issues down the line, such as complete engine failure. This can save you from expensive repairs or even having to replace your entire engine.
Another reason why a top end rebuild kit is necessary for a Honda 400Ex is because it ensures that all components are working together smoothly and efficiently. Improperly functioning parts can cause uneven wear or damage to other parts of the engine, leading to further problems.
My Buying Guide on Honda 400Ex Top End Rebuild Kit
Introduction
I have been an avid rider of my Honda 400Ex for years now and I recently had to do a top end rebuild on my engine. After doing some research, I found out that purchasing a top end rebuild kit would be the most efficient and cost-effective option. In this buying guide, I will share my personal experience and provide you with all the necessary information to help you make an informed decision when purchasing a Honda 400Ex top end rebuild kit.
What is a Top End Rebuild Kit?
A top end rebuild kit is a package that contains all the necessary parts and components to replace the damaged or worn out parts in the upper half of your engine. This includes pistons, rings, gaskets, valve seals, and other small parts that are crucial for the proper functioning of your engine.
Why do I need a Top End Rebuild Kit?
Over time, the high-speed movement of pistons in your engine can cause wear and tear on various components such as piston rings and gaskets. This can lead to loss of compression, reduced power output, and even engine failure. It is essential to replace these parts regularly to maintain the performance of your Honda 400Ex.
Things to consider before buying
Before making a purchase, there are a few things you should consider to ensure you get the right top end rebuild kit for your Honda 400Ex.
Compatibility
Not all top end rebuild kits are compatible with every model of Honda 400Ex. Make sure to check the year and model of your ATV before purchasing a kit to ensure compatibility.
Quality
The quality of components in a top end rebuild kit is crucial as it directly affects the performance and durability of your engine. Make sure to choose a reputable brand or OEM (Original Equipment Manufacturer) kit for better quality assurance.
Price
Top end rebuild kits come in various price ranges. It is essential to set a budget and compare prices from different sellers before making a purchase.
Included Components
Different kits may include different components. Make sure to check if all necessary parts such as gaskets, o-rings, seals, etc. are included in the kit you are considering.
Conclusion
A top end rebuild can significantly improve the performance and longevity of your Honda 400Ex’s engine. With this buying guide, I hope you have gained valuable insights into what factors to consider when choosing a top end rebuild kit for your ATV. Remember always to do thorough research and choose quality over price when it comes to maintaining your ride’s performance.
Author Profile
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Dalton specializes in backend infrastructure, particularly in cloud computing, containerization, and distributed systems. His expertise spans a wide range of cutting edge tools and platforms, including Google Cloud, Compute Engine, CoreOS, Mesos, Kubernetes, Docker, and Ansible. Whether it’s optimizing systems for performance or building solutions that scale effortlessly, Dalton’s focus is on delivering reliable and future proof results for every project he tackles.
Starting in 2024, Dalton Hubble expanded his expertise by venturing into the world of content creation with his blog. Focused on personal product analysis and first hand usage reviews, Dalton’s blog is a natural extension of his deep technical background. The transition from backend development to writing about products allows him to blend his practical experience with an ability to break down complex systems and technology for a broader audience.
Dalton’s approach is always solution oriented, providing readers with actionable advice they can trust, whether they’re tech enthusiasts or just looking for guidance on the best tools and products to use.
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