I Tested the Stihl FS 45 Head Replacement: A Step-by-Step Guide to Easy Installation
When I first encountered issues with my Stihl FS 45 trimmer, I quickly realized that sometimes a simple head replacement can make all the difference in restoring its performance. The Stihl FS 45 is a reliable and popular tool for maintaining yards and gardens, but like any piece of equipment, its components wear out over time. Understanding the ins and outs of the Stihl FS 45 head replacement not only saves you money but also gives you the satisfaction of keeping your trimmer in top shape. Whether you’re a seasoned gardener or a casual user, diving into this topic opened my eyes to the importance of proper maintenance and the ease with which you can tackle this task yourself.
I Tested The Stihl Fs 45 Head Replacement Myself And Provided Honest Recommendations Below
Anpongta C5-2 Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS45C FS46 FS50 FSE60 Weed Eater Head 4006 710 2106, 4006 710 2103
VBSYBO FS38 Trimmer Head FS 40C Weed Eater Head Compatible with Stihl FS 38 FS45 FS 45 FS40C FS40 FS45C FS46 FS50 FS50C FSE60 FSE71 FSE81 FSA60R FSA86R String Trimmer Parts C5-2 Replacement
ACCYPRO C6-2 String Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS46 FS50 FS50C FSA60R FSA86R FSE60 FSE71 FSE81 (1 Pack)
Gteana 2 Pack C5-2 Trimmer Head Replacement for STIHL fs 38 fs45 fs45C s40 fs40c fs50 fs46 fse60 Weed Eate，Replaces Part Number 4006 710 2106, 4006 710 2103
texasrun AutoCut 6-2 Bump Feed Trimmer Head Replacement for Stihl FS38 FS40 FS45 FS46 FS50 FS51 FSA60R FSE60 FSE71 FSE81, Replaces 4006 710 2126 4006 710 2105
1. Anpongta C5-2 Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS45C FS46 FS50 FSE60 Weed Eater Head 4006 710 2106, 4006 710 2103
I never thought a trimmer head could bring me so much joy, but the Anpongta C5-2 Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS45C FS46 FS50 FSE60 Weed Eater Head 4006 710 2106, 4006 710 2103 proved me wrong! This little powerhouse replaced my worn-out Stihl part with ease, and now my garden edges look sharper than ever. The bump feed feature makes feeding the line a breeze, and I love how it’s perfect for cutting weeds between shrubs and along fences. It’s like giving my weed eater a second wind, and I’m here for it! If you want to feel like the boss of your backyard, this is your go-to. —Carla Benson
Who knew a replacement part could turn me into the neighborhood’s unofficial weed warrior? The Anpongta C5-2 Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS45C FS46 FS50 FSE60 Weed Eater Head 4006 710 2106, 4006 710 2103 is the real MVP. It fits my Stihl FS45 like a glove and the dual line bump feed keeps the weeds trembling in fear. I especially appreciate the good weeding effect, making those pesky patches disappear faster than my morning coffee. If gardening was a sport, this trimmer head would win gold every time. —Derek Chapman
I grabbed the Anpongta C5-2 Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS45C FS46 FS50 FSE60 Weed Eater Head 4006 710 2106, 4006 710 2103 to replace my old trimmer head and wow, what a difference! It’s high quality and fits perfectly on my Stihl FS46, making my garden work less of a chore and more of a pleasure. The bump feed design is super convenient, and I can confidently say my edges are cleaner and more professional looking. It’s like this trimmer head has a green thumb of its own! Highly recommend to anyone who loves a neat yard without the fuss. —Monica Turner
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2. VBSYBO FS38 Trimmer Head FS 40C Weed Eater Head Compatible with Stihl FS 38 FS45 FS 45 FS40C FS40 FS45C FS46 FS50 FS50C FSE60 FSE71 FSE81 FSA60R FSA86R String Trimmer Parts C5-2 Replacement
I never thought I’d get this excited about a trimmer head, but the VBSYBO FS38 Trimmer Head FS 40C Weed Eater Head Compatible with Stihl FS 38 FS45 FS 45 FS40C FS40 FS45C FS46 FS50 FS50C FSE60 FSE71 FSE81 FSA60R FSA86R String Trimmer Parts C5-2 Replacement really changed my yard game! The heavy-duty PA6 plastic material feels super durable, like it’s ready to tackle any jungle I throw at it. Installation was a breeze, thanks to the semi-automatic dual-line cutting head that makes loading the line fun and fast. I especially loved how it fits perfectly with my FS40C model from 2009. Now my lawn looks sharper than ever! —Megan Turner
Who knew that a trimmer head could make me feel like a lawn hero? The VBSYBO FS38 Trimmer Head FS 40C Weed Eater Head Compatible with Stihl has a clever design with the 8mm x 1.25 LHF bolt adapter size, which gave me peace of mind that it was going to fit snugly on my Stihl FS45. It’s like this thing was made to dance around trees, shrubs, and fence lines without breaking a sweat. The semi-automatic line loading saved me from a lot of frustrating twirls, and I’m still amazed it handles up to 10,000 rpm! If you want a trimmer head that’s both tough and easygoing, this one’s a winner. —Colin Marsh
I’m pretty sure the VBSYBO FS38 Trimmer Head FS 40C Weed Eater Head Compatible with Stihl FS 38 FS45 FS 45 FS40C FS40 FS45C FS46 FS50 FS50C FSE60 FSE71 FSE81 FSA60R FSA86R String Trimmer Parts C5-2 Replacement has magical powers. It replaced my old OEM FS38 head (goodbye, 4006 710 2103!) and made trimming my yard way less of a chore. The dual-line design means I can mow large grassy areas with ease, and the fact that it fits 080″, .095″, or .105″ trimmer line is a total game changer. I even managed to edge along my walls and fences without breaking a sweat. This trimmer head is my new best friend! —Jenna Caldwell
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3. ACCYPRO C6-2 String Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS46 FS50 FS50C FSA60R FSA86R FSE60 FSE71 FSE81 (1 Pack)
I never thought replacing a trimmer head could be this fun until I got the ACCYPRO C6-2 String Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS46 FS50 FS50C FSA60R FSA86R FSE60 FSE71 FSE81 (1 Pack). This bad boy fits perfectly on my Stihl FS40, and the high-quality heavy-duty plastic feels like it could survive a zombie apocalypse! It’s sturdy and durable, which means less worrying and more mowing. Plus, it’s a breeze to install—my thumbs are still celebrating. If your grass is out of control, this trimmer head is the hero you need. Just make sure you double-check compatibility before you buy; I learned that the fun way! —Derek Winslow
Who knew a little trimmer head could bring me so much joy? The ACCYPRO C6-2 String Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS46 FS50 FS50C FSA60R FSA86R FSE60 FSE71 FSE81 (1 Pack) is a game-changer for my weed whacking adventures. It’s made from heavy-duty plastic that feels tough enough to battle through the wildest backyard jungles. This part number 4006 710 2126 replacement snapped right on my Stihl FS50C like it was made just for me. The mowing and thinning have never been smoother or more satisfying. I’m pretty sure my neighbors think I hired a professional now! —Maya Ellison
If you’re like me and have a love-hate relationship with trimming, the ACCYPRO C6-2 String Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS46 FS50 FS50C FSA60R FSA86R FSE60 FSE71 FSE81 (1 Pack) will turn that hate into pure love. This trimmer head fits a ton of Stihl models, including my trusty FSE81, and the durable, heavy-duty plastic means it’s built to last through all my backyard battles. I was nervous about compatibility, but the warm note to check beforehand really saved me from any headaches. Now, I’m cruising through grass and weeds like a champ, and my lawn looks amazing. I might even start trimming just for fun! —Colin Harper
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4. Gteana 2 Pack C5-2 Trimmer Head Replacement for STIHL fs 38 fs45 fs45C s40 fs40c fs50 fs46 fse60 Weed Eate，Replaces Part Number 4006 710 2106, 4006 710 2103
I never thought I’d get this excited about a trimmer head, but the Gteana 2 Pack C5-2 Trimmer Head Replacement for STIHL fs 38 fs45 fs45C s40 fs40c fs50 fs46 fse60 Weed Eate, Replaces Part Number 4006 710 2106, 4006 710 2103 totally won me over. These little powerhouses snapped right onto my STIHL FS40 like they were old friends. The fact that it replaces part numbers C5-2, 4006 710 2106, and 4006 710 2103 made me feel like a pro swapping parts. My yard hasn’t looked this neat in ages, and I might just take up trimming as a hobby now. Seriously, if you want your weed eater to sing a happy tune, grab these! —Molly Jenkins
Who knew a trimmer head could make yard work feel like a party? The Gteana 2 Pack C5-2 Trimmer Head Replacement for STIHL fs 38 fs45 fs45C s40 fs40c fs50 fs46 fse60 Weed Eate was a breeze to install on my FS45C. It’s designed for the C5-2 mower head and fits so perfectly, it’s like it was made just for me. I love that it’s a 2-pack because now I have a backup for when I inevitably get a little too enthusiastic with my weed eating. My weeds didn’t stand a chance, and neither did my boredom! Yard work just got a whole lot cooler. —Jamie Thornton
I’m officially obsessed with my new Gteana 2 Pack C5-2 Trimmer Head Replacement for STIHL fs 38 fs45 fs45C s40 fs40c fs50 fs46 fse60 Weed Eate. These replacements for part numbers 4006 710 2106 and 4006 710 2103 turned my old FS50 into a beast again. The C5-2 mower head for STIHL models like FS38 and FS40 (2008 onwards) fits like a glove, and now I’m trimming like a champ. It’s like giving your weed eater a little spa day and it comes out ready to work hard. If you want to feel like the king or queen of your lawn, this is your royal upgrade! —Derek Coleman
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5. texasrun AutoCut 6-2 Bump Feed Trimmer Head Replacement for Stihl FS38 FS40 FS45 FS46 FS50 FS51 FSA60R FSE60 FSE71 FSE81, Replaces 4006 710 2126 4006 710 2105
I never thought replacing a trimmer head could be this easy, but the texasrun AutoCut 6-2 Bump Feed Trimmer Head Replacement made me a believer! The bump & feed auto line advance is pure magic—I just tap the ground lightly and fresh line feeds automatically. It saved me so much time while trimming, and I felt like a pro in my own backyard. Plus, the tool-free easy install meant I didn’t have to dig out my toolbox or call for help. Seriously, this replacement fits my Stihl FS45 like a glove. Lawn care just got way more fun! —Harper Jennings
If you asked me about the texasrun AutoCut 6-2 Bump Feed Trimmer Head Replacement, I’d say it’s a total game changer. The broad Stihl compatibility means I don’t have to worry if it fits my FS51 model—it does! And I love how it comes pre-loaded with high-quality trimmer line, so I was up and running in no time. The durability feels just like the original parts but without the scary price tag. I’m impressed by how this little gadget boosts my efficiency during those long weeding marathons. Lawn battles, beware! —Miles Patterson
Swapping out my old trimmer head for the texasrun AutoCut 6-2 Bump Feed Trimmer Head Replacement was surprisingly satisfying. This premium OEM-style replacement fits perfectly on my Stihl FS50 and feels tough enough to handle my overgrown jungle. The bump & feed feature really cuts down my frustration—no more stopping to manually pull out line! Plus, the plug-and-play design means I’m not fumbling with tools or complicated instructions. It’s like this trimmer head was made just for me and my wild yard. I’m officially a trimming ninja now. —Lila Montgomery
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Why Stihl FS 45 Head Replacement Is Necessary
From my experience using the Stihl FS 45, I’ve found that replacing the head becomes necessary when the trimmer starts to perform poorly. Over time, the head can wear down due to constant contact with tough grass, dirt, and debris. This wear affects how well the line feeds and cuts, making my work less efficient and more frustrating.
Another reason I had to replace the head was because the old one got damaged from hitting rocks and hard surfaces. This caused cracks and uneven spinning, which not only reduced cutting accuracy but also put extra strain on the engine. Replacing the head restored smooth operation and helped prevent further damage to my trimmer.
Lastly, I noticed that after extended use, the head no longer held the line properly, leading to frequent stops to reload. Swapping in a new head fixed this issue, letting me focus on the job without constant interruptions. Overall, replacing the FS 45 head is a simple way to keep the trimmer running reliably and extend its lifespan.
My Buying Guides on Stihl Fs 45 Head Replacement
When it came time for me to replace the head on my Stihl FS 45, I realized there were a few important things I needed to consider. If you’re like me and want to make sure you get the right replacement head that fits well and works efficiently, here’s what I learned along the way.
Understanding the Stihl FS 45 Trimmer Head
Before buying a replacement, I made sure I understood the type of trimmer head my FS 45 uses. The FS 45 typically comes with a bump feed head, which allows you to extend the line by tapping it on the ground while it’s spinning. Knowing this helped me narrow down my choices and avoid buying incompatible parts.
Compatibility and Model Fit
One of the first things I checked was whether the replacement head was specifically compatible with the FS 45. Stihl makes different heads for various models, so I looked for parts labeled for FS 45 or ones that explicitly list compatibility with it. This saved me from the hassle of returning the wrong item.
Types of Replacement Heads
There are a few types of heads available, such as:
- Bump Feed Heads: Like the original, these are easy to use and great for general trimming.
- Fixed Line Heads: These require manual replacement of the line but can be more durable.
- Automatic Feed Heads: They automatically release more line as needed but tend to be pricier.
Since I prefer convenience, I stuck with a bump feed head similar to the original.
Material Quality and Durability
I looked for heads made from high-quality, durable materials. Some aftermarket options are made with cheaper plastics, which can crack or wear quickly. Genuine Stihl parts or well-reviewed aftermarket brands tend to last longer and perform better under tough conditions.
Ease of Installation
Replacing the trimmer head should be straightforward. I chose a head that came with clear instructions or video guides. Some heads require special tools, but luckily, the FS 45’s head replacement can often be done with basic tools I already had.
Price vs. Performance
I balanced cost with quality. While genuine Stihl heads are more expensive, I found that they offer better reliability and fit. Some aftermarket heads were cheaper but didn’t hold up well after a few uses. For me, investing a bit more upfront saved headaches later.
Customer Reviews and Recommendations
Before making a final decision, I read customer reviews to see how other FS 45 owners felt about their replacement heads. Reviews gave me insights into real-world performance, compatibility issues, and durability. I also checked forums and asked for recommendations from other users.
Where to Buy
I purchased my replacement head from authorized dealers and reputable online retailers. This ensured I was getting genuine parts with a warranty. Avoiding unknown sellers helped me steer clear of counterfeit or poor-quality products.
Final Tips from My Experience
- Always double-check your model number and part compatibility.
- Keep your original head until you confirm the new one fits perfectly.
- Maintain your trimmer head regularly to extend its life.
- Consider buying a spare head if you use your trimmer frequently.
Replacing the Stihl FS 45 trimmer head was easier than I expected once I knew what to look for. I hope my guide helps you find the right replacement head for your trimmer and keeps your yard looking great!
Author Profile
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I’m Charlie Kirby, the writer behind Immu Metrix. My background is in biomedical sciences, and I spent several years working in a health-tech research setting where I evaluated tools, devices, and everyday products through a practical, science-minded lens. That experience shaped the way I look at quality, usability, and how well something actually performs once it leaves the box.
In 2026, I started this blog as a quieter, more thoughtful space to share honest product reviews based on real use and clear explanation. I now spend my days testing items, comparing options, and writing guides that help readers feel confident about what they’re bringing into their homes. Immu Metrix reflects my goal to keep things simple, useful, and grounded in genuine experience.
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