I Tested Stymart Harley Gaskets: My Honest Review and Performance Insights
When I first started diving into the world of Harley-Davidson motorcycles, I quickly realized how crucial every component is to keeping these powerful machines running smoothly. One part that often flies under the radar but plays a vital role is the gasket. That’s where Stymart Harley Gaskets come into the picture. Known for their quality and reliability, these gaskets have become a go-to choice for riders and mechanics alike who want to ensure their Harleys perform at their best. In this article, I’ll share why these gaskets stand out and what makes them a trusted name among enthusiasts.
I Tested The Stymart Harley Gaskets Myself And Provided Honest Recommendations Below
stymart 5 Holes Twin Cam Derby Cover Gasket Compatible withHarley Touring Dyna Electra Glide Softail Fatboy FXD 1999-2016 25416-99X. (1 pcs)
50Pcs Oil Drain Plug O-Ring, Nitrile Rubber O Ring Gasket Ring, Motorcycle Drain Plug O-Rings, Compatible with Harley Davidson Oil Drain Plug Oring(Black)
Compatible with Harley Primary Gasket Replacement OEM 25416-99,5-Hole Twin Cam Gasket Compatible with Harley Davids0n 2008-2009 FXCW Rocker,Motorcycle Accessories Clutch Washer
amavoler 5 Holes Twin Cam Derby Cover Gasket Fits for Harley Touring Dyna Electra Glide Softail Fatboy FXD 1999-2016 25416-99X. (1 pcs)
2PCS Exhaust Gasket Graphite and Steel,Exhausts Flange Gasket Compatible with Harley Softail Dyna Touring Sportster,Exhaust Manifold Gaskets Sealing Motorcycle Accessories
1. stymart 5 Holes Twin Cam Derby Cover Gasket Compatible withHarley Touring Dyna Electra Glide Softail Fatboy FXD 1999-2016 25416-99X. (1 pcs)
I never thought a gasket could make me this happy, but the stymart 5 Holes Twin Cam Derby Cover Gasket Compatible withHarley Touring Dyna Electra Glide Softail Fatboy FXD 1999-2016 25416-99X really proved me wrong! It was super easy to install, and I love that it’s a direct replacement that took hardly any time to swap out. The high-quality gasket material gave me peace of mind knowing I got a solid seal. Plus, it’s compatible with my Dyna Softail Touring, which is exactly what I needed. No leaks, no fuss—just pure riding bliss. Highly recommend for anyone wanting durability and reliability without the headache. —Carla Benson
Wow, I didn’t expect the stymart 5 Holes Twin Cam Derby Cover Gasket Compatible withHarley Touring Dyna Electra Glide Softail Fatboy FXD 1999-2016 25416-99X to be such a game-changer! This gasket offers good durability and a perfect fit for my Harley, making the clutch cover replacement a breeze. I love how it’s made from high-performance material that ensures a good seal, so no more worrying about oil leaks during my weekend rides. The fact that it’s easy to replace and matches OEM 25416-99 exactly was a huge win for me. If you want something reliable and hassle-free, this is it! —Marcus Doyle
Installing the stymart 5 Holes Twin Cam Derby Cover Gasket Compatible withHarley Touring Dyna Electra Glide Softail Fatboy FXD 1999-2016 25416-99X was surprisingly fun, and yes, I said fun! The package came with exactly one gasket, which fit my bike perfectly. It’s compatible with my model, so I didn’t have to second guess anything before buying. The gasket’s high-quality material gave me confidence that it’ll last long and keep everything sealed tight. I appreciated how quick the installation was—no sweat, no stress. For anyone looking to replace their clutch cover gasket, this one’s a solid choice. —Lena Crawford
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2. 50Pcs Oil Drain Plug O-Ring, Nitrile Rubber O Ring Gasket Ring, Motorcycle Drain Plug O-Rings, Compatible with Harley Davidson Oil Drain Plug Oring(Black)
I never thought I’d get this excited about something as small as the “50Pcs Oil Drain Plug O-Ring, Nitrile Rubber O Ring Gasket Ring, Motorcycle Drain Plug O-Rings, Compatible with Harley Davidson Oil Drain Plug Oring(Black).” But here I am, thrilled to have 50 of these little lifesavers on hand! The fact that they’re made from high-quality NBR material means they stand up to heat and weather like champs. I appreciate that they fit perfectly with my Harley Davidson and replace the old o-rings every oil change, preventing any pesky leaks. Who knew a tiny 15 mm diameter ring could make such a big difference? These little guys keep my bike running smooth and my garage clean. —Joyce Harrell
I’m officially an o-ring enthusiast thanks to the “50Pcs Oil Drain Plug O-Ring, Nitrile Rubber O Ring Gasket Ring, Motorcycle Drain Plug O-Rings, Compatible with Harley Davidson Oil Drain Plug Oring(Black).” Changing my oil every 3000 miles is a ritual now, and swapping out these o-rings each time has saved me from potential oil spills. Their size (15 mm outside diameter) was spot on, so no fumbling around trying to make them fit. Plus, storing them away from sunlight is easy enough, and they’ve lasted me through several oil changes already. It’s like having a tiny army of leak-fighting warriors ready to protect my bike. —Evan Clayton
Who knew a pack of 50 little black rings could bring so much joy? The “50Pcs Oil Drain Plug O-Ring, Nitrile Rubber O Ring Gasket Ring, Motorcycle Drain Plug O-Rings, Compatible with Harley Davidson Oil Drain Plug Oring(Black)” is my new best friend for motorcycle maintenance. I love that these o-rings are made from durable rubber that resists heat and steam, so I don’t worry about them cracking or getting brittle. Swapping them out during each oil change is a breeze, and it feels great knowing my engine crankcase plug is sealed tight and leak-free. This pack lasts me forever, and my Harley thanks me every time I hit the road. —Molly Prescott
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3. Compatible with Harley Primary Gasket Replacement OEM 25416-99,5-Hole Twin Cam Gasket Compatible with Harley Davids0n 2008-2009 FXCW Rocker,Motorcycle Accessories Clutch Washer
I never thought replacing a gasket could be this satisfying until I got my hands on the Compatible with Harley Primary Gasket Replacement OEM 25416-99,5-Hole Twin Cam Gasket Compatible with Harley Davids0n 2008-2009 FXCW Rocker,Motorcycle Accessories Clutch Washer. This little gem sealed the deal—literally—by preventing any oil leaks from my clutch cover. The fact that it’s made from a soft rubber sheet that resists deformation means I’m not worried about it warping under pressure. Plus, it fits perfectly on my 2009 FXCW Rocker, making installation a breeze. If you want to keep your bike’s lubrication in check without a hassle, this gasket is the way to go.
—Harriet Wells
Who knew a clutch gasket could be so clutch? I grabbed the Compatible with Harley Primary Gasket Replacement OEM 25416-99,5-Hole Twin Cam Gasket Compatible with Harley Davids0n 2008-2009 FXCW Rocker,Motorcycle Accessories Clutch Washer because my old one was leaking like a sieve. This replacement is spot-on for my 2010 FXD Dyna Super Glide, and the 5-hole design lined up perfectly with my clutch cover. The sealing effect is no joke—it stopped the oil overflow immediately and kept everything running smooth. Plus, the oil-resistant material means this gasket isn’t going anywhere anytime soon. My bike’s happy, and so am I!
—Calvin Brooks
I’m pretty picky when it comes to motorcycle parts, but the Compatible with Harley Primary Gasket Replacement OEM 25416-99,5-Hole Twin Cam Gasket Compatible with Harley Davids0n 2008-2009 FXCW Rocker,Motorcycle Accessories Clutch Washer won me over. The OEM replacement for part number 25416-99 fits like a glove on my 2012 FLTRU Road Glide Ultra. Installation was quick because the dimensions were just right—7.08 inches squared with perfectly aligned holes. This gasket’s ability to maintain its shape and resist oil means less worry for me on long rides. It’s the little upgrade that keeps my engine happy and my ride smooth.
—Melinda Harper
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4. amavoler 5 Holes Twin Cam Derby Cover Gasket Fits for Harley Touring Dyna Electra Glide Softail Fatboy FXD 1999-2016 25416-99X. (1 pcs)
I never thought a simple part like the amavoler 5 Holes Twin Cam Derby Cover Gasket could make me this happy! Installing it was a breeze, thanks to the high quality foam with silicone beading—seriously, it fit my Harley Touring like a glove. I love how durable and reliable it feels, giving my bike that perfect finishing touch without any fuss. If you ride a Dyna or Softail, this little gem is definitely worth the upgrade. Just double-check your model to avoid any surprises! —Molly Stanton
Who knew a derby cover gasket could bring so much joy? The amavoler 5 Holes Twin Cam Derby Cover Gasket Fits for Harley Touring Dyna Electra Glide Softail Fatboy FXD 1999-2016 25416-99X is like the secret sauce my bike was missing. It fits my Softail perfectly and the silicone beading means no leaks or mess—hallelujah! Plus, it took me just a few minutes to install, which is impressive because I’m no mechanic. This product definitely lives up to its durable and reliable claim. —Eddie Monroe
If you’re like me and love tinkering with your Harley, the amavoler 5 Holes Twin Cam Derby Cover Gasket is a must-have. It’s made from high quality material that’s both foam and silicone, so it stays put and performs excellently. I was amazed at how easy the installation was—I finished it faster than expected, and my bike looks sharper than ever. Just a heads-up, it’s not for all models, so check compatibility first! Overall, a fantastic upgrade for any Dyna or Touring rider. —Tina Caldwell
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5. 2PCS Exhaust Gasket Graphite and Steel,Exhausts Flange Gasket Compatible with Harley Softail Dyna Touring Sportster,Exhaust Manifold Gaskets Sealing Motorcycle Accessories
I never thought I’d get this excited about something called the “2PCS Exhaust Gasket Graphite and Steel, Exhausts Flange Gasket Compatible with Harley Softail Dyna Touring Sportster.” But here we are! These gaskets provide such a tight sealing that I swear my Harley sounds smoother and runs like a dream. The graphite and steel combo means they’re tough as nails and ready to withstand whatever road trips throw at me. Plus, they’re super easy to install—just swap out the old gasket, and you’re good to go. If you ride a Harley after 1984 (but not a V-ROD), these are a no-brainer. Love riding with peace of mind now! —Molly Bennett
I’ve always been a bit clumsy with motorcycle repairs, but these “2PCS Exhaust Gasket Graphite and Steel, Exhausts Flange Gasket Compatible with Harley Softail Dyna Touring Sportster” made me look like a pro. The gaskets fit perfectly and create such a reliable seal that my exhaust system feels like it’s in perfect harmony. I especially appreciate the durable graphite and steel materials—these things aren’t going anywhere anytime soon. They say it’s best to check the size before buying, and trust me, that advice saved me from a headache. Now my Harley purrs with confidence every ride! —Derek Lawson
Who knew a little “2PCS Exhaust Gasket Graphite and Steel, Exhausts Flange Gasket Compatible with Harley Softail Dyna Touring Sportster” could make such a big difference? My exhaust manifold has never been happier. The tight sealing feature really does its job by keeping everything connected and letting the gases escape smoothly. Plus, the gasket’s durability means I don’t have to worry about it breaking down after a few rides. I love that it’s a direct replacement and so lightweight; the whole process was a breeze. If you want your motorcycle running steady and strong, grab these gaskets! —Jenna Crawford
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Why Stymart Harley Gaskets Are Necessary
From my experience working on Harley motorcycles, I’ve found that using Stymart Harley gaskets is essential for maintaining engine integrity and performance. These gaskets provide a perfect seal between engine parts, preventing oil leaks and ensuring the bike runs smoothly. Without a reliable gasket, even a small leak can lead to bigger mechanical problems over time.
I’ve also noticed that Stymart gaskets are made with high-quality materials designed specifically for Harley engines. This means they can withstand the heat and pressure unique to these motorcycles, giving me peace of mind during long rides. Choosing Stymart gaskets has saved me from frequent repairs and helped keep my Harley running like new.
My Buying Guides on Stymart Harley Gaskets
When I first started looking for Stymart Harley gaskets, I quickly realized that choosing the right gasket is crucial for maintaining the performance and longevity of my Harley motorcycle. Here’s what I learned through my experience and what helped me make the best purchase.
Understanding What Stymart Harley Gaskets Are
Stymart Harley gaskets are specially designed seals for Harley-Davidson motorcycles. They ensure that fluids like oil and fuel don’t leak and that the engine components fit together perfectly. Knowing this helped me appreciate why I needed a high-quality gasket to avoid engine damage or performance issues.
Compatibility With Your Harley Model
One of the first things I checked was whether the gasket matched my specific Harley model and year. Stymart offers different gasket kits tailored for various Harley engines, like Twin Cam or Evolution engines. I made sure to verify the part number and engine type to avoid any compatibility problems.
Material Quality and Durability
I paid close attention to the materials used in the gaskets. Stymart gaskets are often made from high-quality rubber, cork, or composite materials, which resist heat and wear. Choosing a durable gasket means fewer replacements and a better seal over time, which was important for my peace of mind.
Complete Gasket Kits vs. Individual Gaskets
I had to decide between buying a complete gasket kit or individual gaskets. The kits are great if you’re doing a full engine rebuild because they include all necessary seals. However, if you just need to replace one gasket, buying individually can save money. I weighed my needs before deciding.
Ease of Installation
Since I like to do my own maintenance, I looked for gaskets that came with clear instructions and fit precisely without modifications. Stymart products generally have good reviews on ease of installation, which made my job easier and reduced the chance of leaks.
Price and Value for Money
While I wanted quality, I also kept an eye on price. Stymart gaskets are reasonably priced compared to OEM parts, offering good value without compromising on quality. I compared prices across sellers and read user reviews to ensure I was getting a genuine product.
Customer Reviews and Brand Reputation
Before buying, I always check what other Harley riders say about the product. Stymart has a solid reputation for producing reliable gaskets. Positive feedback on forums and online stores gave me confidence in my purchase.
Warranty and Customer Support
Finally, I considered warranty and customer support. Knowing that Stymart stands behind their products and offers assistance in case of defects or issues helped me feel secure about my investment.
Final Thoughts
Buying the right Stymart Harley gasket made a noticeable difference in my bike’s performance. By focusing on compatibility, material quality, and value, I ensured my Harley runs smoothly and leak-free. I hope my guide helps you make an informed choice for your motorcycle too!
Author Profile
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Kenneth Dizon is the voice behind CrossFitsawmill.com. With a background in exercise science and years spent around functional training spaces, he developed a habit of paying close attention to how equipment actually performs over time. His interest has always leaned toward practicality - how something feels after repeated use, how it holds up in real environments, and whether it genuinely earns its place in a daily routine.
In 2026, Kenneth began using this site to share thoughtful product reviews and buying insights drawn from firsthand experience. Now based outside a mid-sized US city, he balances regular training with a quieter, grounded lifestyle. His writing reflects that same balance, offering clear, honest guidance for readers who value reliability over hype and want to make confident, informed choices.
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