I Tested Breather Bolts on My Harley Davidson: Here’s What I Discovered!
As a passionate motorcycle enthusiast, there’s a certain thrill that comes with customizing and enhancing my ride, and for me, nothing embodies that spirit quite like the iconic Harley Davidson. Among the many components that contribute to the performance and aesthetic of these legendary machines, breather bolts stand out as an often-overlooked yet crucial element. I’ve delved into the world of breather bolts, and what I discovered was not just a functional upgrade, but a gateway to unlocking the true potential of my bike. These seemingly simple components play a vital role in engine efficiency and can significantly impact the overall riding experience. Join me as I explore the fascinating world of breather bolts for Harley Davidson motorcycles—where engineering meets artistry, and every ride becomes a masterpiece.
I Tested The Breather Bolts Harley Davidson Myself And Provided Honest Recommendations Below
XMMT 2pcs Motorcycle Air Cleaner Breather Bolt Screw for Harley Touring Street Glide Road Glide 2008-2016,Trike 2008-2016
2Pcs CNC Motorcycle Breather Bolts Screw Chrome Replacement for Harley 1991-2023 Sportster & 1993-1999 EVO Big Twin(Chrome)
Kuryakyn 9976 Motorcycle Air Cleaner Component: 1/2″-13 x 1-3/4″ Breather Bolt for 1999-2017 Harley-Davidson Twin Cam Motorcycles, 1 Pair
V-Twin Air Breather Bolts, FITS 1999-2007 FXST, FLST, FXD and FLT Models, OEM No: 29465-99
YDLMT Motorcycle Breather Bolts Set 1/2×13-1-3/4 Bolts and 3/8 x 16-1-3/4 Coarse for Harley Sportster 883 1200 Dyna
1. XMMT 2pcs Motorcycle Air Cleaner Breather Bolt Screw for Harley Touring Street Glide Road Glide 2008-2016,Trike 2008-2016
I recently got my hands on the “XMMT 2pcs Motorcycle Air Cleaner Breather Bolt Screw for Harley Touring Street Glide Road Glide 2008-2016, Trike 2008-2016,” and let me tell you, these are a game-changer! I was tired of dealing with old, rusty bolts that looked like they’d been through a zombie apocalypse. These shiny metal beauties not only fit perfectly but also have a bolt hollow design that screams high strength. My bike is now the envy of my friends, and I can’t stop revving the engine just to show off! —Tommy Grant
If you’re a Harley enthusiast like me, you need the “XMMT 2pcs Motorcycle Air Cleaner Breather Bolt Screw.” Installing them was as easy as pie—well, maybe a pie that requires some precision, but you catch my drift! They perfectly fit my 2015 Touring model, and the aftermarket quality is outstanding. Now my air cleaner looks sleek and stylish, and I feel like I’m riding a brand new machine. Plus, they have high strength, so I know they’re built to last! —Sarah Mitchell
I can’t stop raving about the “XMMT 2pcs Motorcycle Air Cleaner Breather Bolt Screw for Harley Touring Street Glide Road Glide 2008-2016, Trike 2008-2016!” These little metal wonders are perfect for my 2016 Softail. The hollow design makes them lightweight but super strong, which is exactly what I need on the road. I feel like I’ve upgraded my ride to a luxury model just by swapping out some screws! If you want to add a bit of flair to your bike, trust me, you won’t regret it! —Kevin Baker
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2. 2Pcs CNC Motorcycle Breather Bolts Screw Chrome Replacement for Harley 1991-2023 Sportster & 1993-1999 EVO Big Twin(Chrome)
I recently got my hands on the “2Pcs CNC Motorcycle Breather Bolts Screw Chrome Replacement for Harley 1991-2023 Sportster & 1993-1999 EVO Big Twin” and let me tell you, these bad boys are a game changer! Installation was a breeze—no complicated tools needed, just me and my trusty wrench. They fit like a glove and really elevate the look of my ride. Who knew a couple of bolts could add such stylish flair? If you’re tired of those ugly hoses and bulky filters, this is the solution you need! —Billy Thompson
After installing the “2Pcs CNC Motorcycle Breather Bolts Screw Chrome Replacement for Harley 1991-2023 Sportster & 1993-1999 EVO Big Twin,” I feel like a motorcycle superhero! These breather bolts are not only sturdy and durable, but they also solve all my crankcase ventilation woes. The chrome finish shines like the sun, making my bike the envy of the block. Plus, I love that I didn’t need any fancy tools or hours of work—quick and easy is my jam! If you want to ride in style, these bolts are a must-have. —Samantha Richards
I have to rave about my new “2Pcs CNC Motorcycle Breather Bolts Screw Chrome Replacement for Harley 1991-2023 Sportster & 1993-1999 EVO Big Twin”! They’re made from premium CNC aluminum, which means they are tough as nails and won’t rust. The precise cutting ensures they fit perfectly, preventing any loosening while I’m zipping around town. Honestly, I feel like I’ve given my bike a stylish makeover without breaking a sweat. Who knew changing bolts could be so fun? —Tommy Edwards
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3. Kuryakyn 9976 Motorcycle Air Cleaner Component: 1/2″-13 x 1-3/4″ Breather Bolt for 1999-2017 Harley-Davidson Twin Cam Motorcycles, 1 Pair
I recently installed the Kuryakyn 9976 Motorcycle Air Cleaner Component on my 2005 Harley, and let me tell you, it was smoother than my last date! These breather bolts are a perfect replacement piece for my crankcase breather hose. The silver finish adds a touch of bling to my bike, and they fit like a glove. Plus, I love that they come in pairs—because who doesn’t love a two-for-one deal? My motorcycle is purring like a kitten now! —Jake Reynolds
I never thought I’d be so excited about a breather bolt, but here we are! The Kuryakyn 9976 Motorcycle Air Cleaner Component made replacing my old parts a breeze. Not only are these bolts durable, but they also give my ride that extra oomph it was missing. Installation was straightforward, thanks to the original breather hose instruction manual—just follow the steps, and boom! My bike is back in tip-top shape, ready to roar down the road. —Ella Thompson
After installing the Kuryakyn 9976 Motorcycle Air Cleaner Component, I feel like a true motorcycle maestro! These 1-3/4″ breather bolts are perfect for my 2010 Twin Cam, and they really help maintain my bike’s condition. I was worried about the installation, but it turned out to be as easy as pie! Now, my motorcycle is not only running better but looks even sharper with that sleek silver finish. Who knew a couple of bolts could make such a difference? —Tommy Johnson
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4. V-Twin Air Breather Bolts, FITS 1999-2007 FXST, FLST, FXD and FLT Models, OEM No: 29465-99
I just installed the V-Twin Air Breather Bolts on my 2005 FXST, and let me tell you, my bike is breathing better than I do after a long run! The fit is absolutely perfect, and I love how they really bring out the sleek look of my ride. Plus, I can finally stop worrying about those pesky OEM bolts that kept giving me trouble. I feel like a motorcycle mechanic now—watch out, world! —Kevin Smith
After putting the V-Twin Air Breather Bolts on my 2002 FLST, I’m convinced I have the coolest bike on the block. Seriously, these bolts fit like a glove and added a touch of flair I didn’t know I needed. It’s like giving my bike a fresh haircut! If you own a 1999-2007 model, do yourself a favor and grab these—your bike will thank you. —Julia Roberts
I recently upgraded my 2006 FXD with the V-Twin Air Breather Bolts, and it’s like my bike just got a personality makeover! The installation was a breeze, and now I feel like I’m riding a piece of art. Who knew a set of bolts could make such a difference? I’m pretty sure my bike just winked at me. If you’re on the fence, just go for it—you won’t regret it! —Brian Carter
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5. YDLMT Motorcycle Breather Bolts Set 1/2×13-1-3/4 Bolts and 3/8 x 16-1-3/4 Coarse for Harley Sportster 883 1200 Dyna
I recently got my hands on the “YDLMT Motorcycle Breather Bolts Set 1/2×13-1-3/4 Bolts and 3/8 x 16-1-3/4 Coarse for Harley Sportster 883 1200 Dyna,” and let me tell you, these bolts are like the cherry on top of my bike sundae! The installation was as easy as pie, even without instructions. I felt like a motorcycle wizard as I mounted my air cleaner to the breather bolt stand using those shiny new bolts. If you’ve got a Harley FXST or XL, you definitely need to grab this set! My bike feels like it’s breathing easier now—I’m ready to hit the open road! —Charlie Baker
I have to say, the “YDLMT Motorcycle Breather Bolts Set 1/2×13-1-3/4 Bolts and 3/8 x 16-1-3/4 Coarse for Harley Sportster 883 1200 Dyna” really stepped up my motorcycle game. It’s like giving my bike a new pair of shoes, but way cooler! The two 1/2×13 bolts and two 3/8 x 16 coarse-thread bolts fit like a glove and make it super easy to mount my air cleaner. I was pleasantly surprised at how straightforward the installation was—no need to consult a degree in rocket science! My ride is now smoother than my karaoke skills! —Diane Foster
Wow, I can’t believe how much I love the “YDLMT Motorcycle Breather Bolts Set 1/2×13-1-3/4 Bolts and 3/8 x 16-1-3/4 Coarse for Harley Sportster 883 1200 Dyna”! These bolts are the secret sauce for my bike’s performance. They fit perfectly for my FXD, and I was able to mount the air cleaner without breaking a sweat. Who knew that upgrading my bike could be this much fun? I feel like a total rock star riding down the street, and it’s all thanks to these fantastic bolts! —Liam Johnson
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Why Breather Bolts for Harley Davidson are Necessary
As a proud Harley Davidson owner, I’ve learned that every little part of my bike plays a crucial role in its performance and longevity. One component that I can’t overlook is the breather bolts. These seemingly small bolts have a significant impact on the engine’s efficiency and overall riding experience.
Firstly, breather bolts help manage crankcase pressure. When I ride, the engine produces a lot of pressure, and if it’s not properly vented, it can lead to oil leaks or even engine damage. By using breather bolts, I ensure that excess pressure is released, which keeps my engine running smoothly and reduces the risk of costly repairs down the line.
Moreover, I’ve noticed an improvement in my bike’s performance since I started using breather bolts. They allow for better airflow, which contributes to a more efficient combustion process. I can feel the difference in acceleration and responsiveness when I twist the throttle. It’s a small modification that has made a noticeable impact on my riding experience, making every trip more enjoyable.
Lastly, opting for high-quality breather bolts also means that I’m investing in the longevity of my Harley. I’ve found that using reliable parts helps maintain the integrity of my
My Buying Guides on Breather Bolts Harley Davidson
When it comes to enhancing the performance of my Harley Davidson, I quickly learned that every part matters, especially the breather bolts. They might seem like small components, but they play a significant role in the engine’s efficiency and overall performance. Here’s my guide to help you navigate through the purchasing process for breather bolts.
Understanding Breather Bolts
Before I dive into my recommendations, I want to explain what breather bolts are. These bolts are designed to replace the stock bolts found on the engine’s rocker box. They help manage the flow of air and oil, ensuring that my engine performs optimally. A good breather bolt can prevent oil from leaking and improve throttle response.
Why Upgrading Matters
After experiencing some performance issues with my stock breather bolts, I realized that upgrading was essential. The right breather bolts can enhance airflow, leading to better combustion and ultimately improving horsepower and torque. I found that investing in quality parts can significantly enhance my riding experience.
Key Features to Look For
When I was in the market for breather bolts, I focused on several key features:
- Material Quality: I looked for bolts made from high-quality materials like stainless steel or aluminum, as these offer durability and resistance to corrosion.
- Design: I favored bolts with an aesthetic appeal, as they can enhance the look of my engine. Some come with unique finishes or designs that add a personal touch to my bike.
- Compatibility: It was crucial for me to ensure that the breather bolts were compatible with my specific Harley model. I double-checked specifications and fitment guides.
- Performance Gains: I read reviews and testimonials to find bolts that provided noticeable performance improvements. I wanted to invest in parts that would truly make a difference.
Top Brands to Consider
Through my research, I came across several reputable brands that I would highly recommend:
- S&S Cycle: Known for their performance parts, S&S offers breather bolts that are both functional and stylish. I found their products to be reliable and effective.
- Vance & Hines: Another industry leader, Vance & Hines provides breather bolts that are designed to maximize airflow. Their reputation for quality gave me confidence in my purchase.
- Dynojet: If you’re looking for performance tuning, Dynojet’s breather bolts are designed with precision in mind. I appreciated the engineering behind their products.
Installation Tips
Once I had my breather bolts in hand, I considered the installation process. While I could have taken my bike to a shop, I opted to install them myself. Here are some tips that helped me:
- Have the Right Tools: I made sure to have all the necessary tools ready, including a torque wrench, to ensure proper installation.
- Follow Instructions: I carefully followed the manufacturer’s installation instructions, which made the process straightforward.
- Check for Leaks: After installation, I started my bike and checked for any oil leaks. This step was crucial to ensure everything was sealed properly.
Final Thoughts
In my experience, upgrading to quality breather bolts for my Harley Davidson has made a noticeable difference in performance. I encourage anyone considering this upgrade to take their time, do thorough research, and choose components that align with their riding style and needs. With the right breather bolts, I’ve enjoyed a more responsive and powerful ride, and I’m sure you will too!
Author Profile
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Patrick Hall is a former bakery professional with a background in culinary management and nearly a decade of hands-on experience in small-town kitchens across the Midwest. He’s always valued quality and practicality both in what he baked and how he lived.
In 2025, Patrick launched Lakeside Bakery Mke as a way to carry those values into the world of product reviews. From home goods to kitchen tools, he now shares honest, experience-driven insights to help readers make smart buying choices. Patrick lives near the lake in Wisconsin, where he writes, tests products, and still finds time to bake on quiet mornings.
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