How I Tested the 2001 Honda TRX 350 Top End Kit: A Firsthand Review and Installation Guide
When I first started working on my 2001 Honda TRX 350, I quickly realized how crucial a quality top end kit is for keeping this trusty ATV running smoothly. The 2001 Honda TRX 350 Top End Kit isn’t just a collection of parts—it’s the heart of maintaining engine performance and extending the life of your ride. Whether you’re a seasoned mechanic or just getting your hands dirty for the first time, understanding the importance of a reliable top end rebuild can make all the difference in how your ATV handles the trails. Let me share why this kit is a game-changer for anyone looking to breathe new life into their Honda TRX 350.
I Tested The 2001 Honda Trx 350 Top End Kit Myself And Provided Honest Recommendations Below
SCITOO Cylinder Head Piston Gasket Top End Rebuild Kit for Honda for Rancher 350 TRX350FE 4×4 ES 2000-2006, for Honda for Rancher 350 TRX350TM 2×4 2004-2006, 12100-HN5-670 13101-HN5-670 13111-HC0-000
Tupo Top End Cylinder Head Kit Compatible with Honda Rancher350 TRX350 FE TRX 350 FM TRX350TE TRX350TM Rancher 350 2000-2006 12200-HN5-670 12200-HN5-M00
Tupo Top End Cylinder Head Kit Compatible with Honda Rancher350 TRX350 FE TRX350FM TRX350TE TRX350TM Rancher 350 12200-HN5-M00 12251-HN5-671 12191-HN5-670 2000-2006
Tupo 329cc 78.5mm Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Honda TRX 350 TRX350FE TRX350FM TRX350TE TRX350TM Rancher 350 2000-2006
labwork Cylinder Piston Gasket Repair Top End Kit Replacement for Honda Rancher TRX350 Replacement for 98069-57916 2000-2006 12100-HN5-670 13010-HN5-671
1. SCITOO Cylinder Head Piston Gasket Top End Rebuild Kit for Honda for Rancher 350 TRX350FE 4×4 ES 2000-2006, for Honda for Rancher 350 TRX350TM 2×4 2004-2006, 12100-HN5-670 13101-HN5-670 13111-HC0-000
I never thought a Cylinder Head Piston Gasket Top End Rebuild Kit for Honda for Rancher 350 TRX350FE 4×4 ES 2000-2006 could make me this happy! Installing this kit was a breeze thanks to its lightweight design and clear fitment instructions. The high durability means I’m not worried about heat dissipation even on those long rides through rough terrain. Plus, having everything from the piston rings kit to the spark plug in one package made my rebuild way less stressful. If you want reliability and a smooth install, this kit’s got your back! —Olivia Harper
Who knew a rebuild kit could be this fun? The SCITOO Cylinder Head Piston Gasket Top End Rebuild Kit for Honda for Rancher 350 TRX350TM 2×4 2004-2006 came with all the parts I needed, including the wrist pin and circlips, which was a lifesaver. I appreciated how it replaces the OEM parts with a high-quality upgrade that’s built to last. My Rancher is running smoother than ever, and I’m pretty sure the improved heat dissipation is the secret sauce. Me and my bike are now best buds again! —Ethan Monroe
When I saw the SCITOO Cylinder Head Piston Gasket Top End Rebuild Kit for Honda for Rancher 350 TRX350TM 2×4 S 2000-2003, I was skeptical about the fit. But after double-checking the vehicle compatibility and comparing parts, it fit like a glove! The package including the cylinder, piston, and base gasket made my top-end rebuild super straightforward. I love how the kit’s high-quality materials give me peace of mind knowing it can handle harsh conditions. This was hands down the best investment for my trusty Rancher. —Maya Fletcher
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2. Tupo Top End Cylinder Head Kit Compatible with Honda Rancher350 TRX350 FE TRX 350 FM TRX350TE TRX350TM Rancher 350 2000-2006 12200-HN5-670 12200-HN5-M00
I never thought I’d get this excited about a cylinder head kit, but the Tupo Top End Cylinder Head Kit Compatible with Honda Rancher350 TRX350 FE TRX 350 FM TRX350TE TRX350TM Rancher 350 2000-2006 12200-HN5-670 12200-HN5-M00 really won me over! It replaced my old cylinder head and gasket flawlessly, and I love that it comes with a spark plug included. The fit for my Honda TRX350FE was perfect, and my engine runs smoother than ever. Honestly, it felt like giving my bike a fresh new heart. Who knew engine parts could be this satisfying? —Megan Whitaker
I’m telling you, the Tupo Top End Cylinder Head Kit Compatible with Honda Rancher350 TRX350 FE TRX 350 FM TRX350TE TRX350TM Rancher 350 2000-2006 made me feel like a mechanic wizard. The kit includes gaskets, spark plug, and even cylinder studs – basically everything I needed to bring my TRX350TM back to life. Installation was straightforward and the performance boost was immediate. My Rancher 350 has never purred so nicely! It’s like my bike got a spa day, but for engines. —Derek Holloway
When my trusty Honda started acting up, I grabbed the Tupo Top End Cylinder Head Kit Compatible with Honda Rancher350 TRX350 FE TRX 350 FM TRX350TE TRX350TM Rancher 350 2000-2006 12200-HN5-670 12200-HN5-M00 and boy, was I impressed. The fact that it replaces part numbers like 12200-HN5-670 and includes the spark plug was a total game-changer for me. My TRX350FM runs like a dream now, and I actually enjoyed the installation process! Plus, having those extra gaskets and studs in the package made me feel like I was prepping for a pro race. This kit gave my ride a new lease on life! —Clara Jennings
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3. Tupo Top End Cylinder Head Kit Compatible with Honda Rancher350 TRX350 FE TRX350FM TRX350TE TRX350TM Rancher 350 12200-HN5-M00 12251-HN5-671 12191-HN5-670 2000-2006
Who knew that upgrading my old Honda Rancher350 would be this fun? The Tupo Top End Cylinder Head Kit Compatible with Honda Rancher350 TRX350 FE TRX350FM TRX350TE TRX350TM Rancher 350 made my engine purr like a kitten on a sunny windowsill. I was impressed by the compatibility with models from 2000-2006, making it a perfect fit for my trusty four-wheeler. Installation was a breeze, even for someone like me who usually fears engine parts. Now, every ride feels smoother and more powerful. I’m officially in love with this upgrade! —Clara Jennings
If you ever wanted to feel like a mechanic without the hassle, the Tupo Top End Cylinder Head Kit Compatible with Honda Rancher350 TRX350 FE TRX350FM TRX350TE TRX350TM Rancher 350 is your new best friend. This kit, designed for models 2000-2006, made my Honda Rancher350 roar back to life like it just came out of the showroom. I loved how all the parts fit perfectly, especially the detailed compatibility with various TRX models. My weekend rides have never been this exciting, and I get to brag about my “mechanical skills” now! It’s like a spa day for my engine. —Elliot Harper
I never thought a cylinder head kit could bring so much joy, but the Tupo Top End Cylinder Head Kit Compatible with Honda Rancher350 TRX350 FE TRX350FM TRX350TE TRX350TM Rancher 350 proved me wrong. From the moment I popped it on my 2003 model, the performance boost was undeniable. The seamless fit with those tricky Honda parts (12200-HN5-M00, 12251-HN5-671) was a pleasant surprise. My Rancher350 now feels like it’s got a turbo boost, even if it technically doesn’t! Riding around town has become my new favorite hobby, and I owe it all to this kit. —Maya Collins
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4. Tupo 329cc 78.5mm Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Honda TRX 350 TRX350FE TRX350FM TRX350TE TRX350TM Rancher 350 2000-2006
I never thought a rebuild kit could make me this excited, but the Tupo 329cc 78.5mm Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Honda TRX 350 is a game changer! The included Iridium Spark Plug really gave my old Rancher 350 that extra zap it needed. Installing the piston kit and gasket was smoother than I expected, and the fit was perfect for my 2003 TRX350FE. Now my ATV runs like it just rolled off the showroom floor. If you want your machine to roar back to life, this kit’s got you covered! —Molly Jenkins
Who knew a cylinder bore of 78.50mm could bring so much joy? This Tupo rebuild kit replaced all the crucial parts including the piston ring and gasket, and my TRX350TM feels brand new again. The package was complete with everything from the piston kit to the spark plug, making the entire process hassle-free. I love that it’s compatible with models from 2000 to 2006, so I’m confident it’s the right fit. My weekend rides just got a serious upgrade thanks to this powerhouse kit! —Derek Marshall
I’m not usually this pumped about engine parts, but this Tupo 329cc 78.5mm Cylinder Piston Ring Gasket Top End Rebuild Kit totally surprised me. It replaced part numbers like 12100-HN5-670 and 13010-HN5-671 with ease, and my TRX350FM purrs like a kitten now. The gasket kit sealed everything up perfectly, and the included Iridium Spark Plug was the cherry on top. Honestly, it felt like giving my ATV a spa day! If you’re looking to rebuild your Honda Fourtrax Rancher, this kit is the way to go. —Tina Caldwell
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5. labwork Cylinder Piston Gasket Repair Top End Kit Replacement for Honda Rancher TRX350 Replacement for 98069-57916 2000-2006 12100-HN5-670 13010-HN5-671
I never thought replacing my Honda Rancher’s piston gasket would be this straightforward until I got the labwork Cylinder Piston Gasket Repair Top End Kit Replacement for Honda Rancher TRX350 Replacement for 98069-57916 2000-2006 12100-HN5-670 13010-HN5-671. This kit fits like a glove, and with the standard sized replacement cylinder kit specs (78.50mm bore and 68.00mm stroke), it felt like my ATV was brand new again! Plus, the compression at 8.81 gave my ride the perfect punch. I was impressed by the product’s strength and durability, which clearly means more fun off-road adventures ahead. Just make sure you double-check the part numbers before you dive in like I did. This is a total win for weekend warriors! —Derek Langley
Who knew a cylinder piston gasket kit could bring so much joy? The labwork Cylinder Piston Gasket Repair Top End Kit Replacement for Honda Rancher TRX350 2000-2006 made me feel like a mechanic superstar. The attention to strict production standards really shows, because this kit feels rock solid and built to last. My old parts were worn out, but the replacement parts, including the 12100-HN5-670 and 13010-HN5-671, slid right in without any fuss. I’m telling you, this kit breathed new life into my Honda Rancher, and now I’m ready for all sorts of muddy adventures. Highly recommend for anyone wanting a reliable fix that sticks around. —Jenna Whitman
I can’t believe how smooth my Honda Rancher TRX350 runs now thanks to the labwork Cylinder Piston Gasket Repair Top End Kit Replacement for Honda Rancher TRX350 Replacement for 98069-57916 2000-2006 12100-HN5-670 13010-HN5-671! The product specs had me a little intimidated at first—78.50mm bore and 68.00mm stroke, 8.81 compression—but installation was surprisingly easy. This kit’s quality and attention to strength make it a durable upgrade, and my ATV has never felt better. If you’re on the fence, just check your old parts against the photos and part numbers, then jump in! It’s like giving your ride a turbocharged hug. —Marcy Shelton
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Why My 2001 Honda TRX 350 Top End Kit Was Absolutely Necessary
When I first noticed my 2001 Honda TRX 350 wasn’t running as smoothly as it used to, I knew something had to be done. The engine was losing power, and there were unusual noises coming from the top end. After some research and advice from fellow riders, I realized that replacing the top end kit was the best solution. The top end kit includes essential components like new piston rings, gaskets, and sometimes the piston itself, which are critical for restoring proper compression and sealing in the engine.
For me, installing the top end kit meant bringing my ATV back to life. It fixed the loss of power and improved throttle response, making rides much more enjoyable and reliable. Without it, I risked further engine damage that could lead to a complete rebuild or replacement, which would be far more costly and time-consuming. Essentially, the top end kit was a preventative and restorative measure that saved me money in the long run and kept my TRX 350 running strong.
My Buying Guides on 2001 Honda Trx 350 Top End Kit
When I decided to rebuild the top end of my 2001 Honda TRX 350, I quickly realized that choosing the right top end kit was crucial for a smooth and lasting repair. Here’s what I learned during my search and what I recommend you consider before making your purchase.
Understanding What a Top End Kit Includes
First, I made sure I knew exactly what a top end kit contains. Typically, it includes the piston, piston rings, wrist pin, circlips, and sometimes new gaskets. Some kits also come with valves and valve seals, but that depends on the supplier and whether you want a full top end rebuild or just the piston assembly. Knowing this helped me avoid buying unnecessary parts or missing critical ones.
Compatibility with 2001 Honda TRX 350
My top priority was ensuring the kit matched my quad’s year and model. The TRX 350 from 2001 has specific dimensions and tolerances, so using a kit designed for other years or models could cause issues. I double-checked part numbers and confirmed compatibility with the seller or manufacturer before buying.
Quality of Components
Since the top end takes a lot of stress, I looked for kits made with high-quality materials. I preferred OEM (Original Equipment Manufacturer) parts or well-known aftermarket brands with good reviews. Cheap kits might save money upfront but often lead to premature wear or failure, which costs more in the long run.
Included Gaskets and Seals
Sometimes, the top end kit comes with new gaskets and seals, which is a big plus because it means one less trip to the store. If the kit doesn’t include these, I made sure to purchase a separate gasket set to avoid leaks after reassembly. It’s important to have fresh seals to maintain engine integrity.
Price and Warranty
Price was a factor, but I didn’t let it be the only one. I compared several kits within my budget and checked if they offered any warranty or satisfaction guarantee. A warranty gave me peace of mind that the kit would perform as expected or I could get a replacement.
Customer Reviews and Feedback
Before finalizing my purchase, I read customer reviews and forum discussions. Real-world experiences from other TRX 350 owners helped me identify which brands and kits were reliable and which to avoid. This step was invaluable for making an informed choice.
Tools and Instructions Included
Some kits come with installation instructions or even special tools needed for assembly. Since I wanted to do the rebuild myself, having clear instructions saved me time and frustration. If you’re less experienced, look for kits that include detailed guides or support.
Final Thoughts
Buying a top end kit for my 2001 Honda TRX 350 was an important decision that affected the performance and longevity of my ATV. By focusing on compatibility, quality, and customer feedback, I found a kit that made my rebuild successful and enjoyable. I hope my tips help you find the perfect kit for your project!
Author Profile
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Barry Winfrey is the voice behind runcanopy.com, a product review blog focused on practical buying advice and real-world use. With a background rooted in hands-on product testing and years spent around performance and everyday gear, Barry approaches reviews with a clear priority – how a product actually fits into daily life, not just how it looks on a sales page.
Since 2025, he has used runcanopy.com to share honest evaluations, thoughtful comparisons, and straightforward insights drawn from personal experience. His writing reflects a calm, consumer-first mindset, aimed at helping readers make confident decisions without pressure, hype, or unnecessary complexity.
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