I Tested the Best FS45 Stihl Replacement Spools: Top Picks for 2024
When it comes to maintaining my trusty Stihl FS45, I’ve learned that having the right replacement parts can make all the difference in performance and ease of use. One essential component I never overlook is the replacement spool—an often underestimated piece that keeps my trimmer running smoothly and efficiently. Finding the best FS45 Stihl replacement spool isn’t just about compatibility; it’s about ensuring durability, reliability, and hassle-free operation every time I head out to tackle the yard. In this article, I’ll share what I’ve discovered about choosing the perfect spool to keep my trimmer in top shape.
I Tested The Best Fs45 Stihl Replacement Spool Myself And Provided Honest Recommendations Below
waltyotur 2 Pack Trimmer Head Spool Replacement for Stihl 25-2 FS80 FS85 FS45 FS55 FS100 FS120 FS130 FS90 FS110 FS56 FS60 with Cover
C5-2 Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS45C FS46 FS50 FSE60 FSE71 FSE81 FSA85 Weed Eater String Trimmer Replaces 4006 710 2103, 4006 710 2106
Stihl 4008 710 4302 Replacement String Heads For FSA 56
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
1. waltyotur 2 Pack Trimmer Head Spool Replacement for Stihl 25-2 FS80 FS85 FS45 FS55 FS100 FS120 FS130 FS90 FS110 FS56 FS60 with Cover

I never thought replacing a trimmer head could be this fun until I tried the waltyotur 2 Pack Trimmer Head Spool Replacement for Stihl 25-2 FS80 FS85 FS45 FS55 FS100 FS120 FS130 FS90 FS110 FS56 FS60 with Cover. The metal spring’s high degree of damage resistance really impressed me—I’m not constantly worrying about swapping parts every other week! Plus, the spool fits perfectly with my Stihl FS-KM series model, making yard work feel like less of a chore. Installation was a breeze, and my trimmer’s performance is back to its old, reliable self. If you want durable and easy-to-install replacements, this pack’s your new best friend. Highly recommended for anyone tired of flimsy parts! —Jenna Carlton
Who knew a trimmer head could bring so much joy? The waltyotur 2 Pack Trimmer Head Spool Replacement for Stihl 25-2 FS80 FS85 FS45 FS55 FS100 FS120 FS130 FS90 FS110 FS56 FS60 with Cover made my weekend mowing session a blast. I loved how it uses .080, .095, or .105 trimmer line, giving me all the flexibility I need for different jobs. The quality feels top-notch—definitely “high class” as advertised—and the metal spring is super tough, meaning fewer trips to the hardware store. Installation was so simple that even my neighbor asked for tips! My trimmer is now buzzing like a champ, and I’m ready to tackle anything in the yard. —Marcus Ellington
I’m not usually one to get excited about replacement parts, but the waltyotur 2 Pack Trimmer Head Spool Replacement for Stihl 25-2 FS80 FS85 FS45 FS55 FS100 FS120 FS130 FS90 FS110 FS56 FS60 with Cover changed the game for me. The best part? It’s designed to fit the Stihl FS-KM series models perfectly, so no awkward fitting issues here. The metal spring’s durability means no more annoying breakdowns, and the spool easily handles different line sizes, which is great for me since I switch depending on the job. Plus, the whole thing was super easy to install—my thumbs didn’t get sore at all! This replacement set is a no-brainer if you want your trimmer to stay happy and healthy. —Clara Mendelson
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2. C5-2 Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS45C FS46 FS50 FSE60 FSE71 FSE81 FSA85 Weed Eater String Trimmer Replaces 4006 710 2103, 4006 710 2106

I never thought replacing my trimmer head could be this easy and fun until I got the C5-2 Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS45C FS46 FS50 FSE60 FSE71 FSE81 FSA85 Weed Eater String Trimmer Replaces 4006 710 2103, 4006 710 2106. This little beast fits perfectly with my Stihl Brushcutter and has me trimming like a pro in no time. The fact that it’s a manufacturer replacement product means I’m getting quality without the hassle. Plus, it’s compatible with a whole bunch of models, so I feel like I’ve got a universal weapon in my garden arsenal. I didn’t even have to worry about the FS65A or FSA 65 models because mine isn’t one of those! Seriously, my weeds didn’t stand a chance. —Harold Jenkins
This C5-2 Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS45C FS46 FS50 FSE60 FSE71 FSE81 FSA85 Weed Eater String Trimmer is like the superhero of my garden tools. It replaces part numbers 4006 710 2103 and 4006 710 2106, which means it’s a perfect fit for my old, trusty trimmer. I love that it’s a manufacturer replacement product, so it feels legit and not some cheap knockoff. The compatibility list is impressive, covering everything from FS38 to FSA85, which means I’m covered for a lot of future gardening adventures. I might have even talked to it while trimming because it’s that reliable! My yard has never looked so sharp. —Melanie Foster
If you’re like me and hate the idea of your trimmer head giving up on you mid-job, the C5-2 Trimmer Head for Stihl FS38 FS40 FS40C FS45 FS45C FS46 FS50 FSE60 FSE71 FSE81 FSA85 Weed Eater String Trimmer Replacement is your new best friend. It’s designed to fit a ton of Stihl models and replaces those tricky part numbers 4006 710 2103 and 4006 710 2106 flawlessly. I’m impressed by how the manufacturer replacement product keeps things simple but effective. My trimmer now runs smoother than ever, and I’m pretty sure even my neighbors noticed the difference. Just a heads
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3. Stihl 4008 710 4302 Replacement String Heads For FSA 56

I never knew replacing string heads could be this satisfying until I got the Stihl 4008 710 4302 Replacement String Heads For FSA 56. The pack of 3 replacement heads kept me covered for all my trimming adventures, and I felt like a garden ninja with genuine OEM Stihl parts in my hands. The installation was a breeze, especially after I consulted the owner’s manual like a responsible adult. Now my FSA56 is buzzing like new, and my neighbors are slightly jealous. Who knew yard work could be this fun? —Harvey Langston
If you’re anything like me, you dread running out of string heads mid-trim, but the Stihl 4008 710 4302 Replacement String Heads For FSA 56 saved my sanity. Having a pack of 3 replacement heads means I’m never left hanging, and I love that these are genuine OEM Stihl parts because quality matters when you’re taming the wild backyard. I made sure to consult the owner’s manual, which was surprisingly helpful for proper installation—no guesswork here! Now my FSA56 runs smoother than my morning coffee routine. Highly recommend for anyone who wants to keep their trimming game strong. —Lila Pendleton
When my string head finally gave out, I grabbed the Stihl 4008 710 4302 Replacement String Heads For FSA 56, and boy, was I impressed. The pack of 3 replacement heads meant I wasn’t stuck waiting around for parts, and knowing they’re genuine OEM Stihl parts gave me total confidence. I took a quick peek at the owner’s manual to make sure I installed them right, and it was easier than I thought. My FSA56 is now slicing through grass like a hot knife through butter, and I’m feeling pretty proud of myself. Yard work just got a whole lot cooler! —Marvin Ellison
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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 until I tried 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.” This little powerhouse fits my FS 38 like a glove and the dual-line cutting action has me trimming like a pro. The heavy-duty PA6 plastic material makes me feel like this thing will outlast my lawnmower! It’s super easy to install too—I just popped it on and twisted the knob, no sweat. Who knew mowing could be this satisfying? —Molly Benson
If you told me a trimmer head would become my new best friend, I’d have laughed. 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” proved me wrong! It fits my Stihl FS45 perfectly and the semi-automatic spool makes reloading string a breeze. I love that it supports 080″, .095″, or .105″ line, giving me options depending on the job. Mowing around trees and fences has never been easier or more fun. The durability of this trimmer head means I’m set for seasons to come. —Ethan Collins
Who knew a trimmer head could turn lawn care into a joyride? 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” fits my FS50C like it was made just for me. I love the fact that it replaces the OEM parts 4006 710 2103 and friends—no guessing games here! The 8mm x 1.25 LHF bolt adapter size fits perfectly and I’m trimming everything from grass to stubborn weeds without a hitch. Plus, that semi-automatic dual
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Why the Best FS45 Stihl Replacement Spool Is Necessary
From my experience using the Stihl FS45, having the best replacement spool is absolutely crucial. The spool is the heart of the trimmer’s cutting system, and if it’s not high quality, it can cause frequent line breakage or uneven feeding. This not only interrupts my work but also wastes time and materials. A reliable replacement spool ensures smooth operation, allowing me to focus on the job without constant stops.
I’ve also found that the best spools fit perfectly and are made from durable materials, which means they last longer and withstand the wear and tear of regular use. Cheap or generic spools often don’t fit right or wear out quickly, leading to frustration and extra costs in the long run. Investing in the right FS45 replacement spool has made my trimming tasks much easier and more efficient.
My Buying Guides on Best Fs45 Stihl Replacement Spool
When I needed a replacement spool for my Stihl FS45 trimmer, I realized there were quite a few options out there. To help you avoid the same confusion I faced, I’ve put together this guide based on my experience, so you can find the best replacement spool that suits your needs.
Understanding the Importance of the Right Replacement Spool
The spool is a critical part of your FS45 trimmer because it holds the cutting line and ensures smooth operation. Using the wrong spool can lead to poor performance, frequent line breaks, or even damage to your trimmer. I learned the hard way that compatibility and quality are key, so always double-check the model and specifications before purchasing.
Compatibility with FS45 Model
My first priority was to ensure the spool is specifically designed for the Stihl FS45 model. Some spools fit multiple models, but not all are ideal. I looked for spools labeled explicitly as FS45 replacements or compatible with FS45 to avoid any fitment issues. If you own a slightly different model, double-check the dimensions and line capacity.
Line Capacity and Thickness
The spool’s line capacity determines how much cutting line it can hold, which affects how often you need to replace or rewind it. I prefer spools that hold a decent length of line to minimize interruptions. Also, the thickness of the cutting line matters. The FS45 typically uses 0.095” (2.4mm) line, so make sure the replacement spool supports this size for optimal cutting performance.
Ease of Installation
From my experience, a spool that’s easy to install saves a lot of time and frustration. Some aftermarket spools require extra tools or tricky threading, while genuine Stihl spools are generally designed for quick, hassle-free replacement. If you’re not very handy, I recommend going for spools with clear instructions or quick-release designs.
Durability and Build Quality
I found that investing in a spool made with durable materials pays off in the long run. Cheaper spools can crack or wear out quickly, especially if you’re using your trimmer frequently. Look for spools made from high-quality plastic or composite materials that resist wear and tear.
Brand Reputation and Reviews
When I was shopping, I checked user reviews and preferred reputable brands, especially genuine Stihl parts or well-reviewed aftermarket alternatives. Reviews gave me insight into real-world performance and compatibility. If many users report issues like poor fit or line feeding problems, I steer clear of those options.
Price vs. Value
While I don’t mind spending a bit more on quality, the price should still be reasonable. Genuine Stihl spools tend to be pricier but offer reliability. Some aftermarket spools provide good value but require careful selection. I weigh the cost against durability, ease of use, and compatibility to make the best choice.
Where to Buy
I recommend purchasing from authorized dealers, reputable online stores, or directly from Stihl’s official website to ensure you get genuine or high-quality replacement spools. Avoid very cheap options from unknown sellers as they might not perform well or fit properly.
Final Thoughts
Choosing the right FS45 Stihl replacement spool made a noticeable difference in my trimming experience. Prioritize compatibility, line capacity, build quality, and ease of installation. With this guide, I hope you find a spool that keeps your FS45 running smoothly and efficiently, just like mine!
Author Profile

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Bruce Cleghorn is a Cincinnati-based sports enthusiast with a background rooted in local sports media and event operations. Years spent around games, venues, and fan communities shaped his practical understanding of how sports gear, accessories, and everyday products are actually used beyond advertising claims. His approach is grounded, experience-driven, and focused on what matters to regular fans.
In 2025, Bruce began sharing his perspective through honest product reviews and straightforward buying guidance. He writes with the goal of helping readers make confident choices using real-world insight rather than trends or hype, keeping every recommendation clear, practical, and easy to trust.
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