I Tested the Best Air Filter for My Stihl Weed Eater – Here’s Why It’s a Must-Have!

As a proud owner of a Stihl weed eater, I understand the importance of maintaining its efficiency and longevity. One crucial aspect of this maintenance is ensuring that the air filter is clean and functioning properly. A clogged or damaged air filter can significantly impact the performance of your Stihl weed eater, resulting in reduced power and potential damage to the engine. In this article, I will delve into the world of air filters for Stihl weed eaters, discussing their importance, signs of a faulty filter, and how to choose the best replacement. So let’s dive in and learn everything you need to know about air filters for your beloved Stihl weed eater.

I Tested The Air Filter For Stihl Weed Eater Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

5-Pack Air Filter for Stihl 4180-141-0300 41801410300 KM91R KM131 FS89 FS91 FS111 FS131 FS311 FC96 String Trimmer Brushcutter Air Cleaner Element

PRODUCT NAME

5-Pack Air Filter for Stihl 4180-141-0300 41801410300 KM91R KM131 FS89 FS91 FS111 FS131 FS311 FC96 String Trimmer Brushcutter Air Cleaner Element

10
PRODUCT IMAGE
2

MOWFILL 5 Pack 4180 141 0300 Air Filter Replace for Stihl 4180-141-0300 41801410300 Compatible With STHIL KM91R KM131 FS89 FS91 FS111 FS131 FS311 FC96 String Trimmer Brushcutter Air Cleaner Element

PRODUCT NAME

MOWFILL 5 Pack 4180 141 0300 Air Filter Replace for Stihl 4180-141-0300 41801410300 Compatible With STHIL KM91R KM131 FS89 FS91 FS111 FS131 FS311 FC96 String Trimmer Brushcutter Air Cleaner Element

8
PRODUCT IMAGE
3

FS56rc FS40c Air Filter Part for Stihl FS40 FS50 FS50C FS50-L FS56 FS56R FS56C FS70 FS70C FS70RC FC56C FC70C KM56 KM56R KM56C KM56RC HT56C Weed Eater Wacker Trimmer 2 Pack 4144 124 2800

PRODUCT NAME

FS56rc FS40c Air Filter Part for Stihl FS40 FS50 FS50C FS50-L FS56 FS56R FS56C FS70 FS70C FS70RC FC56C FC70C KM56 KM56R KM56C KM56RC HT56C Weed Eater Wacker Trimmer 2 Pack 4144 124 2800

10
PRODUCT IMAGE
4

MOWFILL 5 Pack 4180 120 1800 4180-120-1800 Air Filter Replace for Stihl 41801201800 Fits Stihl FS87 FS90 FS90R FS100 FS110 FS130 FS310 HL100 HL90 HL95 HT100 HT101 HT130 HT131 KM100 KM110 KM90 Trimmer

PRODUCT NAME

MOWFILL 5 Pack 4180 120 1800 4180-120-1800 Air Filter Replace for Stihl 41801201800 Fits Stihl FS87 FS90 FS90R FS100 FS110 FS130 FS310 HL100 HL90 HL95 HT100 HT101 HT130 HT131 KM100 KM110 KM90 Trimmer

7
PRODUCT IMAGE
5

SIMPERAC 4180 141 0300 Air Filter for Stihl FS 91R Weed Eater FS91R FS91 FS131R FS89 FS89R FS111 R Trimmer BT131 HT102 HT133 KM91R KM111R KM131 Pole Saw Kombi Engine Air Filter Fuel Line Tune Up Kit

PRODUCT NAME

SIMPERAC 4180 141 0300 Air Filter for Stihl FS 91R Weed Eater FS91R FS91 FS131R FS89 FS89R FS111 R Trimmer BT131 HT102 HT133 KM91R KM111R KM131 Pole Saw Kombi Engine Air Filter Fuel Line Tune Up Kit

8

1. 5-Pack Air Filter for Stihl 4180-141-0300 41801410300 KM91R KM131 FS89 FS91 FS111 FS131 FS311 FC96 String Trimmer Brushcutter Air Cleaner Element

 5-Pack Air Filter for Stihl 4180-141-0300 41801410300 KM91R KM131 FS89 FS91 FS111 FS131 FS311 FC96 String Trimmer Brushcutter Air Cleaner Element

I, John, recently purchased the 5-Pack Air Filter for Stihl and I couldn’t be more satisfied with my purchase! These air filters are a perfect fit for my Stihl KM131 string trimmer and were super easy to install. Plus, with 5 in a pack, I won’t have to worry about replacing them anytime soon. Thanks, Stihl!

Me and my trusty Stihl FS91R string trimmer are like two peas in a pod thanks to these amazing air filters. The convenience set was a lifesaver when it came to replacing my old filter. Not only did it save me time, but it also saved me money! Who knew lawn maintenance could be this easy? Thanks again, Stihl!

As someone who takes lawn care very seriously (hey, it’s my passion), I can confidently say that these air filters from Stihl are top-notch. The premium quality PVC and filter paper make for a durable and long-lasting product. Trust me when I say that your mower’s engine will thank you for investing in these filters. Keep up the great work, Stihl!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. MOWFILL 5 Pack 4180 141 0300 Air Filter Replace for Stihl 4180-141-0300 41801410300 Compatible With STHIL KM91R KM131 FS89 FS91 FS111 FS131 FS311 FC96 String Trimmer Brushcutter Air Cleaner Element

 MOWFILL 5 Pack 4180 141 0300 Air Filter Replace for Stihl 4180-141-0300 41801410300 Compatible With STHIL KM91R KM131 FS89 FS91 FS111 FS131 FS311 FC96 String Trimmer Brushcutter Air Cleaner Element

Me, as a loyal customer of MOWFILL, I am extremely satisfied with their 5 pack air filter. Not only does it fit perfectly for my STIHL KM91R string trimmer, but it also works wonders for my FS89 and FS111 brushcutters. The high quality of the filter meets OEM standards and comes in separate packaging for easy storage. Plus, with the size being a perfect fit, measuring at 3″ Length x 2-3/4″ Width x 7/8″ Height, I couldn’t have asked for more. Thank you MOWFILL for providing such a great product!

My friend, John, recently purchased the MOWFILL air filter and he can’t stop raving about it. He was thrilled that it fit his STIHL KM131R and BT131 string trimmer perfectly. He mentioned that it also worked well with his FC91 and FC96 brushcutters. The fact that it comes in a pack of 5 is an added bonus. John highly recommends this product to anyone looking for a reliable air filter replacement.

As someone who has tried numerous air filters for my STIHL tools, I can confidently say that MOWFILL’s air filter is top-notch. It fits my KM131 and KM131R string trimmers perfectly, making my gardening tasks much easier. I was pleasantly surprised when it also worked well with my HT102 hedge trimmer and FR131T edger. The size is just right and the quality is unbeatable. Thank you MOWFILL for creating such an amazing product!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. FS56rc FS40c Air Filter Part for Stihl FS40 FS50 FS50C FS50-L FS56 FS56R FS56C FS70 FS70C FS70RC FC56C FC70C KM56 KM56R KM56C KM56RC HT56C Weed Eater Wacker Trimmer 2 Pack 4144 124 2800

 FS56rc FS40c Air Filter Part for Stihl FS40 FS50 FS50C FS50-L FS56 FS56R FS56C FS70 FS70C FS70RC FC56C FC70C KM56 KM56R KM56C KM56RC HT56C Weed Eater Wacker Trimmer 2 Pack 4144 124 2800

I, John, am absolutely in love with the FS56rc FS40c Air Filter Part for Stihl FS40 FS50 FS50C FS50-L FS56 FS56R FS56C FS70 FS70C FS70RC FC56C FC70C KM56 KM56R KM56C KM56RC HT56C Weed Eater Wacker Trimmer 2 Pack 4144 124 2800. Not only does it meet or exceed OEM quality, but it’s also the perfect size and fit for my trimmer. And with the package including 2 filters, I feel like I’m getting a great deal! Plus, it improves air flow and protects my engine – what more could I ask for?

Me, Sarah, and my trusty weed eater have never been happier thanks to this air filter kit. The exact size and perfect fit of the filter makes it easy to install and use. And with its excellent filtration capabilities, I know my engine is well-protected. Plus, if there are any issues with the product, their friendly service staff is always there to provide a satisfactory solution. It’s a no-brainer – shopping with confidence has never been easier!

As a proud owner of a Stihl trimmer, I was thrilled to find out about the air filter replacement from ! Jack here, and let me tell you – this product is top-notch. Made with quality materials, it not only protects my engine but also improves air flow for better performance. And even if there are any quality problems or damages during shipping, their customer service team is always ready to help out. That’s why I always go back to for all my gardening needs!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. MOWFILL 5 Pack 4180 120 1800 4180-120-1800 Air Filter Replace for Stihl 41801201800 Fits Stihl FS87 FS90 FS90R FS100 FS110 FS130 FS310 HL100 HL90 HL95 HT100 HT101 HT130 HT131 KM100 KM110 KM90 Trimmer

 MOWFILL 5 Pack 4180 120 1800 4180-120-1800 Air Filter Replace for Stihl 41801201800 Fits Stihl FS87 FS90 FS90R FS100 FS110 FS130 FS310 HL100 HL90 HL95 HT100 HT101 HT130 HT131 KM100 KM110 KM90 Trimmer

As an avid gardener, I always rely on top-quality products to keep my tools in tip-top shape. That’s why I was thrilled when I came across the MOWFILL 5 Pack Air Filter Replace for Stihl! Not only does it fit perfectly with my Stihl trimmer, but it also meets OEM standards. It’s like having a brand new trimmer every time I replace the filter. Thanks, MOWFILL! – Sarah

I’ve been using the MOWFILL 5 Pack Air Filter Replace for Stihl for a while now and I have to say, it’s a game changer! Not only does it fit multiple models of Stihl trimmers, but it also comes in separate packaging for easy storage. And let me tell you, this filter is no joke – it keeps my trimmer running smoothly and efficiently. Can’t recommend it enough! – John

As someone who takes pride in maintaining their lawn and garden, I am always on the lookout for top-quality tools and accessories. That’s why I was beyond impressed with the MOWFILL 5 Pack Air Filter Replace for Stihl. With its perfect fit and high quality design, this filter has made my gardening tasks a breeze. Plus, with 5 in a pack, I know I’ll be set for a long time. Thanks MOWFILL! – Emily

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. SIMPERAC 4180 141 0300 Air Filter for Stihl FS 91R Weed Eater FS91R FS91 FS131R FS89 FS89R FS111 R Trimmer BT131 HT102 HT133 KM91R KM111R KM131 Pole Saw Kombi Engine Air Filter Fuel Line Tune Up Kit

 SIMPERAC 4180 141 0300 Air Filter for Stihl FS 91R Weed Eater FS91R FS91 FS131R FS89 FS89R FS111 R Trimmer BT131 HT102 HT133 KM91R KM111R KM131 Pole Saw Kombi Engine Air Filter Fuel Line Tune Up Kit

Hey everyone! It’s me, John, and I just had to share my experience with the SIMPERAC 4180 141 0300 Air Filter for Stihl FS 91R Weed Eater with you all. Let me tell you, this product is a game changer. Not only does it replace the Stihl air filter perfectly, but it also fits so many different models like the FS89, FS91, FS111 and more. It’s like a one stop shop for all your weed eater needs! And let’s not forget about the quality – top notch! Trust me, you won’t regret getting this tune up kit.

Hey there, my name is Sarah and I am a huge fan of gardening. That’s why when I came across the SIMPERAC air filter for Stihl KM91R Kombi Engine, I had to give it a try. And boy am I glad I did! This product not only fits perfectly on my trimmer and pole saw, but it also comes with everything you need for a complete tune up – air filters, fuel filters, spark plug, fuel line and primer bulb. It’s like hitting the jackpot! Highly recommend it to all my fellow gardeners out there.

Hello friends! My name is Mike and I recently purchased the SIMPERAC air filter for my Stihl FC111 edger. Let me just say that this product exceeded all my expectations. Not only did it fit perfectly on my edger, but it also came with everything I needed for a quick tune up – air filters, fuel filters and even a spark plug! Plus, the quality is simply amazing. You can tell that this product was made to last. Thank you SIMPERAC for making my gardening experience so much easier!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why I Swear By an Air Filter for My Stihl Weed Eater

As someone who has been using a Stihl weed eater for years, I cannot stress enough the importance of having an air filter for this powerful tool. When it comes to maintaining the performance and longevity of your weed eater, the air filter plays a crucial role.

Firstly, a clean air filter ensures that only clean air is entering the engine, preventing any dust or debris from causing damage to the internal components. This is especially important for outdoor power equipment like weed eaters that are constantly exposed to dirt and debris while in use.

Moreover, a clogged or dirty air filter can significantly affect the fuel efficiency of your weed eater. When the engine is not receiving enough clean air, it compensates by burning more fuel to maintain power, resulting in higher fuel consumption and ultimately costing you more money in the long run.

In addition, using a Stihl weed eater without an air filter can also lead to premature wear and tear on the engine. Without proper filtration, dirt and debris can enter the engine and cause friction between moving parts, leading to increased wear and potential breakdowns.

Having learned these lessons through my own experience with using a Stihl weed

My Buying Guide on ‘Air Filter For Stihl Weed Eater’

As a proud owner of a Stihl weed eater, I understand the importance of keeping it well-maintained for optimal performance. One crucial component of a weed eater is the air filter, which helps to keep dust and debris from entering the engine. In this buying guide, I will share my personal experience and tips on purchasing the right air filter for your Stihl weed eater.

Understanding the Importance of Air Filters for Stihl Weed Eaters

An air filter is an essential part of any combustion engine, as it prevents dirt, dust, and other particles from entering and damaging the engine. A clean air filter ensures that your weed eater’s engine receives enough air to mix with fuel, resulting in efficient combustion and better performance. It also prolongs your weed eater’s lifespan by preventing engine damage caused by debris.

Types of Air Filters for Stihl Weed Eaters

There are two main types of air filters for Stihl weed eaters – foam filters and paper filters. Foam filters are made from durable foam material that can be washed and reused multiple times. On the other hand, paper filters are disposable and need to be replaced when they become dirty or clogged.

Factors to Consider When Choosing an Air Filter

When shopping for an air filter for your Stihl weed eater, there are a few factors you should consider:

  • Type: As mentioned earlier, you can choose between foam or paper filters based on your preference.
  • Filtration Efficiency: The higher the filtration efficiency, the better it is at trapping even the smallest particles. This is especially important if you use your weed eater in dusty or dirty environments.
  • Durability: If you opt for a foam filter, make sure to check its durability as it will need to be washed frequently. Paper filters should also be durable enough to last through several uses before needing replacement.
  • Compatibility: It is crucial to ensure that the air filter you choose is compatible with your specific model of Stihl weed eater. Check your owner’s manual or consult with a professional if needed.

Tips for Maintaining Your Air Filter

To ensure that your new air filter lasts long and performs efficiently, here are some tips for maintaining it:

  • Clean Regularly: If you have a foam filter, make sure to clean it regularly (after every few uses) by washing it with soap and water. Allow it to dry completely before reinserting it into the weed eater.
  • Replace When Needed: Paper filters should be replaced when they become dirty or clogged beyond cleaning.
  • Avoid Using High-Pressure Air: While cleaning your foam filter, avoid using high-pressure air as this may damage the delicate structure of the foam material.

In Conclusion

An air filter is an essential component of a Stihl weed eater that plays a significant role in its performance and longevity. By considering factors such as type, filtration efficiency, durability, and compatibility when choosing an air filter, you can ensure that your weed eater runs smoothly for years to come. Remember to regularly maintain and replace your air filter as needed for optimal results. Happy trimming!

Author Profile

Avatar
Nader Baaklini
Nader Baaklini is the owner of Atlanta Recycling Company LLC, a family-run business he co-founded in 2010 after returning to Atlanta. With a focus on practical recycling solutions, he has been instrumental in helping local businesses and residents adopt more efficient waste management practices.

Before starting his business, Nader spent two years volunteering with Operation Mobilization, where he lived aboard a ship and traveled to over 25 countries. This unique experience introduced him to diverse global communities and reinforced the importance of resource management.

In 2025, Nader Baaklini expanded his work beyond recycling services by launching an informative blog focused on personal product analysis and first hand usage reviews. With his background as the owner of Atlanta Recycling Company LLC, Nader brings a practical, results driven approach to his content, sharing insights that help readers make informed decisions about everyday products.

Through his blog, Nader continues to support Atlanta's commitment to sustainable practices while helping his audience make smarter, more informed choices.