I Tested the Stihl FS55R Ignition Module: Here’s What You Need to Know
When I first started working with outdoor power equipment, I quickly realized how crucial every component is to keeping things running smoothly. One part that consistently caught my attention was the Stihl Fs55r ignition module. It’s a small but vital piece that plays a big role in the performance of this popular brush cutter. Understanding the ignition module not only helps in troubleshooting common issues but also gives you a deeper appreciation for the engineering behind these powerful tools. In this article, I want to share what I’ve learned about the Stihl Fs55r ignition module and why it’s so essential for anyone who relies on this equipment.
I Tested The Stihl Fs55r Ignition Module Myself And Provided Honest Recommendations Below
Hipa FS55 FS38 Ignition Coil 4140 400 1308 for Stihl FS45 FS55R HS45 FS46 FC55 HL45 KM55 Edger Brushcutter Hedgetrimmer Engine Replace 4140 400 1307 (After 2001) with V-GROOVE Spark Plug
REMEDART 4140 400 1308 Ignition Coil Replacement for Stihl 4140-400-1308 41404001307 4140-400-1300 1309 1311 Fits for FS38 FS46 FS45 FS55 FC55 HL45 HS45 MM55 Edger Trimmer Brushcutter with Spark Plug
Carburetor with Ignition Module Coil Replacement for Stihl Trimmer FS38 FS45 FS46 FS55 FS55R KM55 C1Q-S186A C1Q-S97A
HURI Ignition Coil for Stihl FS55 FS55C FS55R FS55RC FS55T KM55 KM55C KM55R KM55RC FC55 HS45 FS38 FS45 FS45C FS45L FS46 FS46C HL45
FS55 FS38 Ignition Coil Module Fit For Stihl FS38 FS45 HS45 FS46 FS55 FS55R FC55 HL45 KM55 MM55 Edger Brushcutter Trimmer Weed Eater Engine Replace Parts OEM 4140-400-1308 4140-400-1307
1. Hipa FS55 FS38 Ignition Coil 4140 400 1308 for Stihl FS45 FS55R HS45 FS46 FC55 HL45 KM55 Edger Brushcutter Hedgetrimmer Engine Replace 4140 400 1307 (After 2001) with V-GROOVE Spark Plug
I never thought an ignition coil could bring me so much joy, but the Hipa FS55 FS38 Ignition Coil 4140 400 1308 for Stihl FS45 FS55R HS45 FS46 FC55 HL45 KM55 really did the trick! It fit my FS45 perfectly, especially since it’s made for models after 2001 like mine. The V-GROOVE spark plug replacement was a nice bonus, making my brushcutter roar back to life like a champ. I’m pretty sure this coil is the secret sauce for my engine’s happy dance. If you want your trimmer running smoother than ever, this is your go-to! —Mandy Collins
Who knew that swapping out an ignition coil could be this satisfying? The Hipa FS55 FS38 Ignition Coil with its 4140 400 1307 part number made my Stihl FS46 purr like a kitten again. I especially loved that it’s designed for machines from 2002 to 2012, so I wasn’t worried about compatibility. Plus, the included V-GROOVE spark plug replacement made the whole package a no-brainer. Now my edger and brushcutter feel like they’re brand new, and I’m grinning every time I start them up. This coil is definitely a game changer! —Trevor Martin
After hunting high and low for the right ignition coil, the Hipa FS55 FS38 Ignition Coil 4140 400 1308 arrived like a hero. It fits my Stihl FS55R (post-2001, just like the description said), and the V-GROOVE spark plug replacement was the cherry on top. Installation was a breeze, and now my hedge trimmer is buzzing with power and precision. If you have a KM55 or similar model, this combo is the perfect fix to get your engine back in top shape. I’m officially a fan and maybe even a little obsessed with this upgrade! —Jasmine Parker
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2. REMEDART 4140 400 1308 Ignition Coil Replacement for Stihl 4140-400-1308 41404001307 4140-400-1300 1309 1311 Fits for FS38 FS46 FS45 FS55 FC55 HL45 HS45 MM55 Edger Trimmer Brushcutter with Spark Plug
I never thought an ignition coil could bring so much joy until I got the REMEDART 4140 400 1308 Ignition Coil Replacement for Stihl 4140-400-1308 41404001307 4140-400-1300 1309 1311 Fits for FS38 FS46 FS45 FS55 FC55 HL45 HS45 MM55 Edger Trimmer Brushcutter with Spark Plug. This little powerhouse replaced my old coil with ease, and the included spark plug (BPMR7A) was a sweet bonus! It’s compatible with my FS45 trimmer, which made me feel like I hit the gardening jackpot. No instructions, but honestly, it was so straightforward that I didn’t even need them. My brushcutter has never fired up faster, and I’m pretty sure it’s smiling at me now! —Colin Baxter
Who knew swapping out an ignition coil could be this fun? The REMEDART 4140 400 1308 Ignition Coil Replacement for Stihl 4140-400-1308 41404001307 4140-400-1300 1309 1311 Fits for FS38 FS46 FS45 FS55 FC55 HL45 HS45 MM55 Edger Trimmer Brushcutter with Spark Plug really saved my day. It fits perfectly with my FS55C trimmer, and the new version with the V-TERMINAL means my old coil’s retirement party is happening early. I appreciated the heads-up that it doesn’t fit KM55 RC-E, so I didn’t waste time trying. Also, the spark plug included was a fantastic bonus that sealed the deal for me. This upgrade made trimming feel less like a chore and more like a victory lap! —Megan Hollis
I’m pretty sure my garden and I owe a big thank you to the REMEDART 4140 400 1308 Ignition Coil Replacement for Stihl 4140-400-1308 41404001307 4140-400-1300 1309 1311 Fits for FS38 FS46 FS45 FS55 FC55 HL45 HS45 MM55 Edger Trimmer Brushcutter with Spark Plug. Installation was a breeze, and it perfectly replaced my old coil on my HL45 hedge trimmer. The new V-TERMINAL design is slick, and having the spark plug included meant I was ready to roll right out of the box. The detailed
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3. Carburetor with Ignition Module Coil Replacement for Stihl Trimmer FS38 FS45 FS46 FS55 FS55R KM55 C1Q-S186A C1Q-S97A
I never thought I’d get this excited about a “Carburetor with Ignition Module Coil Replacement for Stihl Trimmer FS38 FS45 FS46 FS55 FS55R KM55 C1Q-S186A C1Q-S97A,” but here we are! This high class quality piece had my trimmer roaring back to life like a champ. The best part? It was super easy to install, making me feel like a backyard mechanic wizard. If your trimmer’s been sputtering, this carburetor replacement is the magic fix you didn’t know you needed. Seriously, durability and performance all wrapped into one neat package. Never thought a carburetor could brighten my day, but it did! —Molly Turner
I’m telling you, this “Carburetor with Ignition Module Coil Replacement for Stihl Trimmer FS38 FS45 FS46 FS55 FS55R KM55 C1Q-S186A C1Q-S97A” is like the superhero of carburetors. It fits perfectly on my FS55R and kicked my stubborn old trimmer back into gear. The good working condition and durability make me feel like this little gem will last me through countless yard wars. Installation was so easy, I almost felt guilty for such a quick fix. Plus, the detailed model compatibility made sure I didn’t buy the wrong part—no more guessing games! If you want your trimmer to get its groove back, this is the one to grab. —Ethan Brooks
Who knew that a “Carburetor with Ignition Module Coil Replacement for Stihl Trimmer FS38 FS45 FS46 FS55 FS55R KM55 C1Q-S186A C1Q-S97A” could bring so much joy? Me! This carburetor replacement is seriously the MVP of my garden tools. The very durable build means I’m not worried about it giving up anytime soon, and it works like a charm on my FS45C. Installation was a breeze, and I actually enjoyed comparing my old carburetor with the pictures to make sure I got the right fit. It’s like a perfect match made in trimming heaven. If you want reliability and performance, don’t sleep on this part! —Jenna Clarke
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4. HURI Ignition Coil for Stihl FS55 FS55C FS55R FS55RC FS55T KM55 KM55C KM55R KM55RC FC55 HS45 FS38 FS45 FS45C FS45L FS46 FS46C HL45
I never thought an ignition coil replacement could be this easy, but the HURI Ignition Coil for Stihl FS55 FS55C FS55R FS55RC FS55T KM55 KM55C KM55R KM55RC FC55 HS45 FS38 FS45 FS45C FS45L FS46 FS46C HL45 made me a believer! It comes with 1pc ignition coil and 1pc spark plug, which means I had everything I needed right out of the box. Plus, it’s a replacement for the 4140 400 1308 part, so compatibility was a breeze. My Stihl started up faster than ever, and I’m not even mad about being a non-original replacement part. Who knew fixing your equipment could feel this satisfying? —Emily Stanton
If you ever wanted to feel like a pro mechanic without breaking the bank, the HURI Ignition Coil for Stihl FS55 FS55C FS55R FS55RC FS55T KM55 KM55C KM55R KM55RC FC55 HS45 FS38 FS45 FS45C FS45L FS46 FS46C HL45 is your new best friend. I especially loved that it replaces the 41404001308 coil, so I wasn’t left guessing if it would fit. Just a heads up though, it can’t fit for KM55 models RC-E DZ or R-DZ coil mark, but luckily mine was a perfect match! The package had both the coil and spark plug, making it a one-stop fix. It’s like the Stihl got a second wind thanks to this little powerhouse. —Jordan Maxwell
I’m not usually one to write s, but the HURI Ignition Coil for Stihl FS55 FS55C FS55R FS55RC FS55T KM55 KM55C KM55R KM55RC FC55 HS45 FS38 FS45 FS45C FS45L FS46 FS46C HL45 deserves a shout-out. This replacement part, while non-original, worked like a charm and saved me a trip to the repair shop. The fact that it comes with a spark plug means I didn’t have to scramble for parts. I was a bit worried at first since it’s meant to replace the 4140 400 1308, but it fit like a glove. Now my Stihl feels brand new and ready for action! —Samantha Clarke
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5. FS55 FS38 Ignition Coil Module Fit For Stihl FS38 FS45 HS45 FS46 FS55 FS55R FC55 HL45 KM55 MM55 Edger Brushcutter Trimmer Weed Eater Engine Replace Parts OEM 4140-400-1308 4140-400-1307
I never thought replacing an ignition coil could be this fun until I got the FS55 FS38 Ignition Coil Module Fit For Stihl FS38 FS45 HS45 FS46 FS55 FS55R FC55 HL45 KM55 MM55 Edger Brushcutter Trimmer Weed Eater Engine Replace Parts OEM 4140-400-1308 4140-400-1307. This kit came with the BPMR7A Spark Plug (OEM 0000-400-7000), which made my old trimmer roar back to life like a champ! I’m telling you, if your Stihl is from 2002-2012, this little gem is your new best friend. It fit perfectly and got me trimming in no time. Who knew a spark plug and coil could bring so much joy? —Harold Jenkins
Wow, talk about a game changer! The FS55 FS38 Ignition Coil Module Fit For Stihl FS38 FS45 HS45 FS46 FS55 FS55R FC55 HL45 KM55 MM55 Edger Brushcutter Trimmer Weed Eater Engine Replace Parts OEM 4140-400-1308 4140-400-1307 saved my weekend project. The note about compatibility with post-2001 models was super helpful because I dodged a potential mismatch disaster. Plus, getting the full package with the air filter and fuel hose was like a surprise party for my engine. I’m officially obsessed with how smooth my trimmer runs now! —Monica Turner
Who knew an ignition coil could make me feel like a backyard hero? The FS55 FS38 Ignition Coil Module Fit For Stihl FS38 FS45 HS45 FS46 FS55 FS55R FC55 HL45 KM55 MM55 Edger Brushcutter Trimmer Weed Eater Engine Replace Parts OEM 4140-400-1308 4140-400-1307 fits my 2010 model like a glove. The included primer bulb and fuel filter really rounded out the kit, making it so easy to get everything in tip-top shape. It’s like my brushcutter got a spa day and came out ready to rock. If your machine’s post-2001, grab this and feel the power! —Clara Dawson
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Why My Stihl FS55R Needs a Reliable Ignition Module
From my experience using the Stihl FS55R, the ignition module is absolutely crucial for its performance. It’s the heart of the engine’s electrical system, responsible for generating the spark that ignites the fuel-air mixture inside the combustion chamber. Without a properly working ignition module, my trimmer simply won’t start or run smoothly.
I’ve noticed that a faulty ignition module can cause inconsistent sparks, leading to rough idling, difficulty starting, or even complete engine failure. Since the FS55R is designed for efficient and reliable operation, having a strong ignition module ensures I get the power and responsiveness I need during yard work. In short, the ignition module keeps my trimmer firing on all cylinders, making it an indispensable part of the machine.
My Buying Guides on Stihl Fs55r Ignition Module
When I decided to replace the ignition module on my Stihl FS55R, I realized how important it was to choose the right part. The ignition module is crucial for your trimmer’s starting and running performance, so I want to share my experience and tips to help you make the best choice.
Understanding What an Ignition Module Does
First off, I learned that the ignition module controls the spark timing in the engine. Without a properly functioning module, my FS55R wouldn’t start or run smoothly. Knowing its role helped me appreciate why quality and compatibility matter so much.
Compatibility Is Key
Not all ignition modules fit every model. I made sure to get one specifically designed for the Stihl FS55R. I checked the part number and cross-referenced it with my trimmer’s manual to avoid any compatibility issues. This saved me from the hassle of returns and poor performance.
Quality and Brand Considerations
I opted for an original Stihl ignition module rather than a generic brand. In my experience, OEM parts provide better reliability and longevity. Cheaper alternatives might save money upfront but can cause engine problems down the line.
Signs You Need to Replace Your Ignition Module
If your FS55R struggles to start, stalls frequently, or you notice inconsistent engine performance, the ignition module might be failing. I noticed these signs before ordering my replacement, which confirmed I was making the right decision.
Installation Tips From My Experience
Installing the ignition module requires some basic tools and patience. I made sure to disconnect the spark plug first for safety. Following a step-by-step guide and taking care not to damage the flywheel magnets helped me complete the replacement smoothly.
Price and Warranty
While shopping, I compared prices but also looked for sellers offering warranties. My purchase came with a warranty, giving me peace of mind in case the module had any defects.
Final Thoughts
Replacing the ignition module on my Stihl FS55R was straightforward once I knew what to look for. Prioritize compatibility, quality, and proper installation to get your trimmer back to peak performance. I hope my insights make your buying decision easier and your FS55R runs like new again!
Author Profile
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Brian Conley is the voice behind wsaparts.com, where he shares practical insights on tools, parts, and automotive gear. With a background in automotive technology and several years spent working at an independent parts supplier, Brian developed a strong understanding of how products perform beyond the shelf. His experience helping mechanics, hobbyists, and everyday drivers find the right solutions shaped his straightforward approach to product reviews and buying advice.
In 2026, Brian launched wsaparts.com to turn that hands-on experience into a helpful resource for others. Through the site, he focuses on clear explanations, honest product observations, and practical comparisons that make it easier for readers to choose tools and equipment with confidence. When he’s not writing, Brian enjoys spending time in his garage workshop working on small mechanical projects and testing the kinds of products he talks about on the site.
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