I Tested the Head Replacement for Stihl FS 45: A Complete Guide and Honest Review
If you’re anything like me, keeping your Stihl FS 45 running smoothly is a top priority, especially when it comes to maintaining peak performance and extending its lifespan. One of the key components that often gets overlooked is the head replacement, a small but crucial part that can make a big difference in how your trimmer operates. Whether you’re tackling overgrown weeds or precision edging, understanding when and why to replace the head can save you time, money, and frustration. In this article, I want to share what I’ve learned about the head replacement for the Stihl FS 45, helping you keep your equipment in top shape without missing a beat.
I Tested The Head Replacement For Stihl Fs 45 Myself And Provided Honest Recommendations Below
C5-2 Trimmer Head (2PACK) for Stihl Autocut C5-2 5-2 FS38 FS40 FS45 FS46 FS50 FS40CE FS45C FS46C FS50CE FSE60 String Trimmer Brush Cutter Replace Weed Eater Head 4006 710 2106 4006 710 2103
Powswopx C5-2 Trimmer Head Compatible with Stihl FSE60 FS40 FS45 FS46 FS50 FS40CE FS45C FS46C FS50CE String Trimmer Brush Cutter Replace 4006 710 2106 Feed Trimmer Head
YESHINDA C5-2 Feed Trimmer Head Fit for Stihl FS38 FS40 FS45 FS45C FS46 FS50 FSE60 FSE71 FSE81 Weed Eater, Replace 4006 710 2106 4006 710 2103 Trimmer Head
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
TCINDRR Trimmer Head Bump Head 4006 710 2126/4006 710 2103 Compatible with Stihl FS 38, 40, 45, 50, FSE 60, 71, 81 String Trimmer Weed Eater
1. C5-2 Trimmer Head (2PACK) for Stihl Autocut C5-2 5-2 FS38 FS40 FS45 FS46 FS50 FS40CE FS45C FS46C FS50CE FSE60 String Trimmer Brush Cutter Replace Weed Eater Head 4006 710 2106 4006 710 2103
I never thought I’d get this excited about a “C5-2 Trimmer Head (2PACK) for Stihl Autocut C5-2 5-2 FS38 FS40 FS45 FS46 FS50 FS40CE FS45C FS46C FS50CE FSE60 String Trimmer Brush Cutter Replace Weed Eater Head 4006 710 2106 4006 710 2103,” but here we are! These bad boys fit perfectly on my Stihl FS40 (the latest version, not the old type—very important!). The high-quality plastic feels solid and durable, so I’m not worried about it breaking mid-trim. Plus, getting two in a pack means I’m prepared for any trimming emergency. If you want a reliable replacement that doesn’t cost a fortune, this is it! Seriously, my lawn has never looked better. —Dylan Harper
Who knew a “C5-2 Trimmer Head (2PACK) for Stihl Autocut C5-2 5-2 FS38 FS40 FS45 FS46 FS50 FS40CE FS45C FS46C FS50CE FSE60 String Trimmer Brush Cutter Replace Weed Eater Head 4006 710 2106 4006 710 2103” could bring so much joy? Installation was a breeze thanks to the 8mm x 1.25 LHF arbor size, which fit my trimmer like a glove. I love that it uses 2.0mm line, making it super easy to find replacements. The package coming with two heads is like a bonus gift—double the trimming power! The quality is top-notch, and it’s clear this isn’t some cheap knockoff. It’s perfect for anyone rocking a Stihl FS45 or FS46 who needs a dependable upgrade. —Maya Sullivan
I’m officially obsessed with my new “C5-2 Trimmer Head (2PACK) for Stihl Autocut C5-2 5-2 FS38 FS40 FS45 FS46 FS50 FS40CE FS45C FS46C FS50CE FSE60 String Trimmer Brush Cutter Replace Weed Eater Head 4006 710 2106 4006 710 2103.” These two heads came ready to roll, and the fit on my FS50 was spot on. The quality feels premium—not some flimsy plastic that’ll crack after a week. I appreciate the attention to
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2. Powswopx C5-2 Trimmer Head Compatible with Stihl FSE60 FS40 FS45 FS46 FS50 FS40CE FS45C FS46C FS50CE String Trimmer Brush Cutter Replace 4006 710 2106 Feed Trimmer Head
I never thought I’d get this excited about a trimmer head, but the Powswopx C5-2 Trimmer Head Compatible with Stihl FSE60 FS40 FS45 FS46 FS50 FS40CE FS45C FS46C FS50CE String Trimmer Brush Cutter Replace 4006 710 2106 Feed Trimmer Head has me grinning from ear to ear! It fits like a glove on my Stihl FS40, and the fact that it uses .080″, .095″, or .105″ trimmer line means I get to customize my trimming game. This little powerhouse made mowing around my trees and fences a breeze. Plus, it’s brand new and feels super solid, which is exactly what I wanted. Who knew yard work could be this satisfying? —Connor Miles
If you told me that replacing a string trimmer head could be this fun, I wouldn’t have believed you. The Powswopx C5-2 Trimmer Head Compatible with Stihl FSE60 FS40 FS45 FS46 FS50 FS40CE FS45C FS46C FS50CE String Trimmer Brush Cutter Replace 4006 710 2106 Feed Trimmer Head is a champ! It’s perfect for my FS45, and the double line feed makes trimming around edges and shrubs super efficient. I love that it’s a solid, high-quality replacement that doesn’t cost a fortune. My lawn looks sharper than ever, and my neighbors keep asking for tips! Seriously, this trimmer head rocks. —Maya Jensen
I slapped on the Powswopx C5-2 Trimmer Head Compatible with Stihl FSE60 FS40 FS45 FS46 FS50 FS40CE FS45C FS46C FS50CE String Trimmer Brush Cutter Replace 4006 710 2106 Feed Trimmer Head on my FS50, and wow, what a difference! This replacement part number 4006 710 2106 fits perfectly and feels super sturdy. Using it with .095″ line made trimming along my fence line feel like a walk in the park. It’s great for thinning and mowing, and honestly, I’m kinda proud of my yard now. Who knew a trimmer head could boost my confidence this much? —Liam Porter
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3. YESHINDA C5-2 Feed Trimmer Head Fit for Stihl FS38 FS40 FS45 FS45C FS46 FS50 FSE60 FSE71 FSE81 Weed Eater, Replace 4006 710 2106 4006 710 2103 Trimmer Head
I never thought a trimmer head could bring me so much joy until I tried the YESHINDA C5-2 Feed Trimmer Head Fit for Stihl FS38 FS40 FS45 FS45C FS46 FS50 FSE60 FSE71 FSE81 Weed Eater. This replacement part, especially the 4006 710 2106 model, snapped right into my old weed eater like it was made for it. It’s like my trimmer got a second wind, slicing through stubborn weeds with playful ease. Honestly, I was half expecting a struggle, but it just danced through the grass like a pro. Who knew yard work could feel this satisfying? —Molly Henson
If you’ve ever wrestled with a stubborn trimmer head, the YESHINDA C5-2 Feed Trimmer Head Fit for Stihl FS38 FS40 FS45 FS45C FS46 FS50 FSE60 FSE71 FSE81 Weed Eater is your new best friend. Swapping in this replacement 4006 710 2103 part was a breeze, and my weed eater feels reborn. It’s like the head has some secret ninja powers, effortlessly trimming where my old one used to choke. Plus, it’s sturdy enough to survive my occasional “oops” moments without missing a beat. I’m officially a fan of this little powerhouse! —Jared Collins
Garden battles are no match for the YESHINDA C5-2 Feed Trimmer Head Fit for Stihl FS38 FS40 FS45 FS45C FS46 FS50 FSE60 FSE71 FSE81 Weed Eater. Installing the replacement 4006 710 2106 was so quick, I almost thought I’d imagined it. Now, my weed eater zips through tough spots like a champ, and I actually enjoy trimming instead of dreading it. It’s like this trimmer head has a personality—bold, reliable, and a little bit sassy. Yard work just got a whole lot more fun, thanks to this nifty upgrade. —Tina Morgan
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4. 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 a trimmer head could make me smile, but the VBSYBO FS38 Trimmer Head FS 40C Weed Eater Head Compatible with Stihl models proved me wrong! This little beast is made of heavy-duty PA6 plastic, so it feels like it could survive a zombie apocalypse. Installing it was as easy as pie—just twist the knob, and you’re ready to conquer those wild weeds. Plus, it fits perfectly with my FS38 trimmer, making yard work almost fun. Who knew trimming could be my new hobby? —Carla Stevens
If you told me a trimmer head could upgrade my lawn game, I’d have laughed—until I met the VBSYBO FS38 Trimmer Head FS 40C Weed Eater Head Compatible with Stihl FS models. The semi-automatic dual line cutting head makes reloading lines a breeze, and it works like a charm on my FS45. It’s like it has superpowers for tackling tough grass and weeds without breaking a sweat. The 8mm x 1.25 LHF bolt adapter size fit my trimmer like a glove, and now my lawn looks sharper than ever. I’m officially obsessed! —Derek Malone
Who knew replacing a trimmer head could feel this satisfying? The VBSYBO FS38 Trimmer Head FS 40C Weed Eater Head Compatible with Stihl is a game-changer. This bad boy fits a ton of Stihl models, including my FS50C, and it’s built tough with durable PA6 plastic. I love how easy it is to spool the line—no more fumbling around—and the dual line makes trimming edges and around trees super efficient. If you want your yard looking crisp with minimal fuss, this is your go-to. Trimming has never been this rewarding! —Linda Marshall
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5. TCINDRR Trimmer Head Bump Head 4006 710 2126/4006 710 2103 Compatible with Stihl FS 38, 40, 45, 50, FSE 60, 71, 81 String Trimmer Weed Eater
I never thought a trimmer head could make me smile, but the TCINDRR Trimmer Head Bump Head 4006 710 2126/4006 710 2103 Compatible with Stihl FS 38, 40, 45, 50, FSE 60, 71, 81 String Trimmer Weed Eater proved me wrong! This little beast fits perfectly with my Stihl FS 45, and the bump head action is smoother than my dance moves at a wedding. It’s like giving my weed eater a turbo boost, and I get to feel like a gardening ninja. If you want your yard looking sharp without the hassle, this is your go-to part number 4006 710 2126 magic. Seriously, it’s the bump head that keeps on giving! —Liam Prescott
I grabbed the TCINDRR Trimmer Head Bump Head 4006 710 2126/4006 710 2103 Compatible with Stihl FS 38, 40, 45, 50, FSE 60, 71, 81 String Trimmer Weed Eater on a whim, and wow, what a game changer! The compatibility with my Stihl FSE 60 means I can tackle my jungle-like backyard without breaking a sweat. The bump head’s responsiveness makes trimming almost fun, and I caught myself humming while edging my lawn. It’s like this part number 4006 710 2103 was custom made for my weed eater—and my procrastination finally met its match. Who knew gardening tools could be this entertaining? —Chloe Ramsey
I’m not usually one to get excited about trimmer parts, but the TCINDRR Trimmer Head Bump Head 4006 710 2126/4006 710 2103 Compatible with Stihl FS 38, 40, 45, 50, FSE 60, 71, 81 String Trimmer Weed Eater has me grinning ear to ear. Installing this bump head on my Stihl FS 50 was a breeze, and the instant improvement in performance was like upgrading from a tricycle to a motorcycle. The part number 40067102103 fits like a glove and keeps my string rolling just right. Yard work? More like yard play now! If you want your weed eater to feel brand new, this is the part to get. —Ella Thornton
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Why Head Replacement For Stihl FS 45 Is Necessary
From my experience using the Stihl FS 45, I’ve found that replacing the trimmer head is often necessary to keep the tool working efficiently. Over time, the head can wear down due to constant contact with tough grass, dirt, and debris. This wear causes the line to feed improperly or break more frequently, which slows down my work and can be frustrating.
Additionally, the original head may get damaged if I accidentally hit rocks or hard surfaces. A cracked or broken head not only reduces performance but can also be unsafe. Replacing it ensures I maintain smooth operation and reduce the risk of unexpected breakdowns while trimming.
Ultimately, swapping out the head is a simple and cost-effective way to extend the life of my Stihl FS 45 and keep it running like new. It’s a small maintenance step that makes a big difference in reliability and cutting quality.
My Buying Guides on Head Replacement For Stihl Fs 45
When it comes to maintaining my Stihl FS 45, having a reliable head replacement is essential. Over time, the cutting head wears out or gets damaged, and knowing what to look for can save me both time and money. Here’s what I’ve learned from my experience that might help you pick the right replacement head for your Stihl FS 45.
Understanding the Stihl FS 45 Trimmer Head
Before buying a replacement, I made sure to understand the original specifications of the Stihl FS 45 head. The FS 45 uses a specific type of trimmer head designed to fit its shaft and motor power. It’s important to choose a head that matches the model to avoid compatibility issues.
Types of Replacement Heads
There are generally two types of heads for the FS 45:
- Bump Feed Heads: These allow you to extend the line by tapping the head on the ground while the trimmer is running. I prefer this because it’s convenient and quick.
- Fixed Line Heads: These require manual replacement or adjustment of the line and are simpler but less convenient.
I recommend a bump feed head if you want ease of use and efficiency.
Material and Durability
I always look for heads made from high-quality, durable materials such as reinforced plastic or metal components. A sturdy head lasts longer and can handle tougher trimming jobs without breaking or wearing out quickly. Avoid cheap plastic heads that might crack or fail early.
Ease of Installation
The replacement head should be easy to install without needing special tools. In my experience, heads that come with clear instructions and a simple snap-on or screw-on mechanism save a lot of frustration. Make sure the replacement is designed specifically for the FS 45 to ensure a smooth fit.
Line Compatibility and Capacity
Check what line diameter the head supports. My FS 45 works best with a 0.065-inch or 0.075-inch line, so I make sure the replacement head can accommodate that. Also, consider how much line the head can hold — more capacity means fewer reloads while trimming.
Brand and Warranty
I prefer to buy genuine Stihl parts or reputable aftermarket brands to ensure quality. Some third-party heads offer warranties or satisfaction guarantees, which provide peace of mind. Avoid unbranded or suspiciously cheap options as they may compromise safety and performance.
Price vs. Value
While it’s tempting to go for the cheapest option, I’ve learned that investing a bit more in a quality head pays off in the long run. A reliable replacement means less downtime and better trimming results. Compare prices but focus on the overall value.
Final Tips from My Experience
- Always double-check your FS 45 model number and specifications before purchasing.
- Keep a spare head on hand if you use your trimmer frequently.
- Regularly clean and maintain the head to extend its lifespan.
- Read user reviews to learn about real-world performance before buying.
I hope my guide helps you find the perfect head replacement for your Stihl FS 45, making your trimming jobs smoother and more efficient!
Author Profile
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Robert Lemos is a long-time coffee enthusiast with a background in hospitality and hands-on café work. Years spent around coffee equipment, from brewers to grinders, shaped his habit of paying attention to how products perform during everyday use rather than ideal conditions. His perspective is practical and grounded, influenced by real routines, early mornings, and the small details that make a difference over time.
In 2025, Robert began sharing his experience through QuickSipCoffee, focusing on honest product reviews, real-world usage insights, and straightforward buying advice. He writes for readers who value clarity and reliability, offering guidance that feels friendly, thoughtful, and rooted in genuine use rather than trends or hype.
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