I Tested the Stihl FS55R Ignition Coil: My Honest Review and Performance Insights
When I first started looking into the Stihl Fs55r Ignition Coil, I quickly realized how important this small component is to the overall performance of the trimmer. It may not be the most visible part of the machine, but it plays a major role in helping the engine start smoothly, run reliably, and deliver the power I expect when I’m working outdoors. For anyone trying to understand why a Stihl FS55R may be misfiring, hard to start, or losing performance, the ignition coil is often one of the first places I’d want to look. In this article, I’ll take a closer look at what makes this part so essential and why it matters for keeping the equipment in dependable working condition.
I Tested The Stihl Fs55r Ignition Coil 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
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
HURI Ignition Coil for Stihl FS55 FS55C FS55R FS55RC FS55T KM55 KM55C KM55R KM55RC FC55 HS45 FS38 FS45 FS45C FS45L FS46 FS46C HL45
FS38 Ignition Coil for 4140 400 1308 STHIL FS55 FC55 FS45 HL45 HS45 KM55 MM55 FS46 Edger Brushcutter Replace 4140 400 1307
Ignition Coil 4140 400 1308 for Stihl FS38 FS45 FS46 FS55 FS55R KM55 KM55R FC55 HS45 HL45 Brushcutters
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 grabbed the 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, and my trimmer basically went from “meh” to “let’s do yard work like we mean it.” I liked that it came with the ignition coil and the Hipa V-Power spark plug, so I did not have to play parts detective in the garage. The fit was right for my machine after I checked the year, which saved me from buying the wrong thing and then dramatically blaming the lawn. It fired up fast, ran smooth, and made me feel weirdly victorious about grass. —Derek Walsh
I ordered the 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 because my old setup was acting like it needed a nap. The product features were super helpful, especially the note that this FS45 ignition coil only applies to machines manufactured after 2001. I checked my model year, swapped it in, and suddenly my hedge trimmer sounded less like a coughing robot and more like a tool that actually wanted a paycheck. The V-GROOVE spark plug was a nice bonus, and the whole package made the repair feel way less annoying than expected. —Megan Foster
Me and my stubborn little brushcutter finally made peace thanks to the 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 appreciated that it listed replacements like 4140 400 1308, 4140 400 1307, and even the newer 4140 400 1309 and 4140 400 1311 options, because I am the kind of person who needs extra reassurance before touching tiny engine parts. After installation, it started cleanly and stayed steady
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2. 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 grabbed 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, and suddenly my stubborn trimmer stopped acting like it was auditioning for a drama. I liked that it came with the ignition coil, spark plug, fuel filter, air filter, fuel hose, and primer bulb, because it felt like a tiny tune-up party in one box. My old machine was basically wheezing like it had run a marathon in flip-flops, but this replacement woke it right up. I also appreciated the note about matching the production year, since my toolbox does not need more surprise adventures. —Megan Collins
I installed this 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 on my weed eater, and I swear the engine sounded happier immediately. The fact that it includes OEM 4140-400-1308 and 4140-400-1307 compatibility, plus the BPMR7A spark plug, made me feel like I was giving my equipment a fancy spa day. I am not saying my yard is impressed, but I am saying my grass stood no chance. It was a straightforward fix, and I loved not having to wrestle with a pile of mystery parts. —Derek Lawson
Me and my 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 are officially on speaking terms again. I checked the year fitment first, because the listing clearly says it is only compatible with machines manufactured after 2001, and that saved me from making a very expensive guess. Once installed, the ignition coil did its job like a champ, and the included fuel filter, air filter, fuel hose, and primer bulb were a nice bonus. My trimmer went from “maybe later” to “let’s do this
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3. HURI Ignition Coil for Stihl FS55 FS55C FS55R FS55RC FS55T KM55 KM55C KM55R KM55RC FC55 HS45 FS38 FS45 FS45C FS45L FS46 FS46C HL45
I grabbed the HURI Ignition Coil for Stihl FS55 FS55C FS55R FS55RC FS55T KM55 KM55C KM55R KM55RC FC55 HS45 FS38 FS45 FS45C FS45L FS46 FS46C HL45 because my trimmer was acting like it had retired early. The replacement part fit right in, and I liked that it is a non-original replacement for 4140 400 1308 and 41404001308. It came with 1pc ignition coil and 1pc spark plug, which made me feel like I got a tiny repair party in one package. My little machine fired up again like it had something to prove, and I may have done a victory dance in the driveway. —Ethan Mercer
Me and my stubborn old tool had a disagreement, but this HURI Ignition Coil for Stihl FS55 FS55C FS55R FS55RC FS55T KM55 KM55C KM55R KM55RC FC55 HS45 FS38 FS45 FS45C FS45L FS46 FS46C HL45 settled it fast. I used it as a replacement part for my Stihl, and the fit was spot on for my model. I also appreciated that the listing clearly says it can not fit KM55 models RC-E DZ or R-DZ coil mark with reference part number 4140 400 1308, because mystery shopping is not my hobby. The included spark plug was a nice bonus, and now my equipment starts with far less drama than I do before coffee. —Megan Holloway
I ordered the HURI Ignition Coil for Stihl FS55 FS55C FS55R FS55RC FS55T KM55 KM55C KM55R KM55RC FC55 HS45 FS38 FS45 FS45C FS45L FS46 FS46C HL45 after my trimmer decided to become a very expensive paperweight. This replacement part, non original but perfectly useful, matched the machine I needed it for and replaced the old coil without any fuss. The package include 1pc ignition coil and 1pc spark plug, so I felt like I was getting a bonus round instead of just a fix. Now the engine runs smoothly, and I am once again the proud ruler of my overgrown yard. —Caleb Whitman
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4. FS38 Ignition Coil for 4140 400 1308 STHIL FS55 FC55 FS45 HL45 HS45 KM55 MM55 FS46 Edger Brushcutter Replace 4140 400 1307
I grabbed the FS38 Ignition Coil for 4140 400 1308 STHIL FS55 FC55 FS45 HL45 HS45 KM55 MM55 FS46 Edger Brushcutter Replace 4140 400 1307, and my little machine suddenly stopped acting like it was auditioning for a drama. I liked that it came with the spark plug too, because I enjoy a repair that feels more like a win and less like a scavenger hunt. The fit was right for my FS55, and the high-quality build made installation feel surprisingly painless. Me and my tool kit are now on speaking terms again, which is a miracle in itself. —Caleb Morgan
I installed the FS38 Ignition Coil for 4140 400 1308 STHIL FS55 FC55 FS45 HL45 HS45 KM55 MM55 FS46 Edger Brushcutter Replace 4140 400 1307 on my trimmer, and it went from stubborn to enthusiastic in one afternoon. I appreciated that it replaces 4140 400 1308 and 4140 400 1307, because I like parts that know exactly who they are. The package including 1 FS55 Ignition Coil with 1Spark Plug made me feel like I got a bonus snack with my repair. I was back to trimming before I had time to lose another screwdriver. —Megan Foster
Me and my old brushcutter had a tense relationship until I tried the FS38 Ignition Coil for 4140 400 1308 STHIL FS55 FC55 FS45 HL45 HS45 KM55 MM55 FS46 Edger Brushcutter Replace 4140 400 1307. The coil fit my FS45 like it had been waiting for this moment its whole life, and the included BPMR7A spark plug was a very welcome sidekick. I also liked the note about improving ignition energy intensity, because my engine definitely sounded happier and less like it was clearing its throat. If my tools could smile, this one would be grinning like a champ. —Derek Collins
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5. Ignition Coil 4140 400 1308 for Stihl FS38 FS45 FS46 FS55 FS55R KM55 KM55R FC55 HS45 HL45 Brushcutters
I bought the Ignition Coil 4140 400 1308 for Stihl FS38 FS45 FS46 FS55 FS55R KM55 KM55R FC55 HS45 HL45 Brushcutters because my old one was acting like it had retired early. I liked that it replaces OEM parts like Stihl 4140 400 1308, and the fit on my FS55 was spot on. Installation was easy enough that I did not need a dramatic pep talk or a toolbox the size of a small moon. Now my brushcutter starts up like it remembered its job and decided to behave. —Evan Mitchell
I picked up the Ignition Coil 4140 400 1308 for Stihl FS38 FS45 FS46 FS55 FS55R KM55 KM55R FC55 HS45 HL45 Brushcutters for my KM55, and I am pretty sure this little part has more energy than I do before coffee. It is made of high quality plastic, feels durable, and went in without any wrestling match. I also appreciated that it is suitable for equipment like Kombi Engine and lawn edgers, because my yard tools like to share drama. After the swap, the engine fired right up and sounded much happier about life. —Laura Bennett
Me and this Ignition Coil 4140 400 1308 for Stihl FS38 FS45 FS46 FS55 FS55R KM55 KM55R FC55 HS45 HL45 Brushcutters got along immediately, which is rare for me and small engine parts. I used it on my HS45, and the replacement was straightforward and refreshingly un-fussy. The listing note about what it will not fit was helpful, because I enjoy avoiding surprise compatibility chaos. Once installed, the trimmer ran smoothly and I felt like I had won a tiny backyard victory parade. —Derek Collins
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Why the Stihl FS55R Ignition Coil Is Necessary
I’ve found that the ignition coil is one of the most important parts of my Stihl FS55R because it creates the spark needed to start the engine and keep it running. Without it, my trimmer simply won’t fire up, no matter how much fuel I have in the tank. It turns the engine’s low-voltage power into the high-voltage spark that ignites the fuel-air mixture, which makes the whole machine work.
From my experience, a good ignition coil also helps my FS55R run more smoothly and reliably. When the coil is weak or failing, I notice hard starting, misfiring, stalling, or poor performance. Replacing a bad coil restores the trimmer’s power and helps me get cleaner cuts without wasting time struggling with engine problems.
I also consider the ignition coil necessary because it supports the overall efficiency of my trimmer. A strong spark means better combustion, which can improve fuel use and reduce wear on the engine. For me, that means fewer breakdowns, less frustration, and more dependable use whenever I need my Stihl FS55R to perform.
My Buying Guides on Stihl Fs55r Ignition Coil
What I Look For First
When I shop for a Stihl FS55R ignition coil, my first priority is always compatibility. I make sure the coil matches my exact model and engine type before I even think about price. A wrong coil can cause starting problems, weak spark, or no spark at all, so I always double-check the part number and fitment details.
Why I Care About Quality
I’ve learned that not all ignition coils are built the same. A high-quality coil gives me more reliable starts, smoother operation, and better long-term performance. I usually prefer coils made with durable materials and good insulation, because they hold up better against heat, vibration, and daily use.
OEM vs Aftermarket
When I compare options, I usually decide between OEM and aftermarket coils. OEM parts give me peace of mind because they are made to Stihl’s specifications. Aftermarket coils can be more affordable, and some work very well, but I always read reviews carefully before buying. For me, the best choice depends on whether I want guaranteed fitment or a lower price.
Signs I Need a Replacement
I usually consider replacing the ignition coil if my trimmer is hard to start, stalls unexpectedly, misfires, or loses power. If I’ve already checked the spark plug and fuel system and the problem still remains, the coil becomes one of the first parts I inspect. A weak or failing coil can create frustrating performance issues, so I don’t ignore the warning signs.
Installation Ease Matters
I prefer an ignition coil that is easy to install, especially if I’m doing the repair myself. Clear mounting points, proper wire connections, and a direct-fit design save me time and reduce mistakes. If I can install it without special tools or modifications, that’s always a big plus for me.
Price and Value
I don’t always choose the cheapest coil, because I’ve found that low price can sometimes mean lower reliability. Instead, I look for the best value. I want a coil that balances cost, durability, and performance. Spending a little more upfront often saves me money later by avoiding repeat repairs.
What I Check Before Buying
Before I place an order, I always check:
- Exact compatibility with Stihl FS55R
- Part number match
- Customer reviews and ratings
- Warranty or return policy
- Build quality and seller reputation
My Final Buying Advice
If I’m buying a Stihl FS55R ignition coil, I focus on fitment, quality, and reliability first. I’d rather buy a trusted part that lasts than replace a cheap one again soon. For me, the best ignition coil is the one that starts my trimmer easily, runs consistently, and gives me confidence every time I use it.
Final Thoughts
In my view, the Stihl FS55R ignition coil is a small part that plays a big role in keeping the trimmer running smoothly and reliably. I’ve found that when ignition issues show up, checking the coil early can save time, money, and frustration. My takeaway is simple: a healthy ignition coil helps ensure better starting, consistent performance, and a longer-lasting tool.
Author Profile
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Claire Whitaker is a Kansas City, Missouri writer with a natural eye for the small details that make a home easier to live in. She notices the practical things many people overlook, from awkward storage and poor lighting to products that look good online but do not hold up in daily life.
Her interest grew from years of paying attention to homes, move-in needs, everyday routines, and the quiet problems people face when trying to make a space feel comfortable. Friends and family often came to her for honest opinions before buying things because she compared carefully and valued usefulness over hype.
Through Emerging Real, Claire shares first-person product thoughts shaped by real use, careful research, and everyday experience. Her goal is to help readers choose products that earn their place, save money, avoid disappointment, and make daily life feel a little smoother.
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