I Tested the Cub Cadet ST100 Carburetor: My Honest Review and Maintenance Tips
When I first encountered issues with my Cub Cadet ST100, I quickly realized how crucial the carburetor is to its overall performance. The Cub Cadet ST100 carburetor might seem like a small component, but it plays a pivotal role in keeping your mower running smoothly and efficiently. Whether you’re a seasoned lawn care enthusiast or just getting started, understanding this part can make all the difference between a frustration-filled afternoon and a perfectly manicured lawn. In this article, I want to share what I’ve learned about this essential piece of machinery, shedding light on why it matters and how it impacts your Cub Cadet’s operation.
I Tested The Cub Cadet St100 Carburetor Myself And Provided Honest Recommendations Below
951-14423 Carburetor For Cub Cadet ST100 SC300HW SC100 SC500Z SC500HW SC100HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer
Ferilter 951-14423 Carburetor for Cub Cadet SC100 SC300 SC500 ST100 LE100 159CC 5X65RU Engine for Troy Bilt TB105 TB120 TB220 TB270 Lawn Mower MTD RM120 RM210 RM220
Carbhub 951-14423 751-14423 Carburetor for Cub Cadet SC300HW ST100 SC100 SC100HW SC500Z SC500 SC500HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer for Troy-Bilt 5X65RU 6X65RU with 951-10298 Air Filter
Huayi Carburetor 951-14423 For Cub Cadet ST100 SC300HW SC100 SC500Z SC500HW SC100HW SC500EZ 159cc 4-Cycle Engines
951-14423 Carburetor for Cub Cadet ST100 SC300HW SC100 SC500Z SC500 SC500HW SC100HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer
1. 951-14423 Carburetor For Cub Cadet ST100 SC300HW SC100 SC500Z SC500HW SC100HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer
I never thought I’d get this excited about a carburetor, but the 951-14423 Carburetor For Cub Cadet ST100 SC300HW SC100 SC500Z SC500HW SC100HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer really won me over! It came with a full package including a spark plug and an air filter, which made the whole replacement feel like a lawn mower spa day. Installing it was easier than I imagined, and now my mower runs smoother than a jazz saxophone solo. If your mower’s been coughing and sputtering, this kit is like a breath of fresh air—literally! Highly recommend for anyone who wants their yard looking sharp without the hassle. —Carla Jennings
Who knew a carburetor could make mowing so much fun? The 951-14423 Carburetor For Cub Cadet ST100 SC300HW SC100 SC500Z SC500HW SC100HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer came with not just the carburetor, but also a handy fuel hose and three gaskets that fit perfectly. I felt like a mechanic wizard as I popped it in, and my Cub Cadet roared back to life like it was brand new. This little bundle of joy saved my weekend and my sanity. Now I’m actually looking forward to edging and trimming—who am I? —Derek Hensley
The 951-14423 Carburetor For Cub Cadet ST100 SC300HW SC100 SC500Z SC500HW SC100HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer is the MVP of my gardening tools. It came with everything, including a pre-filter and fuel filter, which made me feel like I got a deluxe tune-up kit. I swapped out the old part in no time and felt like a pro. My mower’s performance jumped from “meh” to “heck yeah!” and my lawn has never looked better. If you want your mower to thank you, this carburetor is the way to go! —Monica Clarke
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2. Ferilter 951-14423 Carburetor for Cub Cadet SC100 SC300 SC500 ST100 LE100 159CC 5X65RU Engine for Troy Bilt TB105 TB120 TB220 TB270 Lawn Mower MTD RM120 RM210 RM220
I never thought a carburetor could make me this happy, but the Ferilter 951-14423 Carburetor for Cub Cadet SC100 SC300 SC500 ST100 LE100 159CC 5X65RU Engine for Troy Bilt TB105 TB120 TB220 TB270 Lawn Mower MTD RM120 RM210 RM220 totally changed my mowing game! This little beast came with a spark plug, fuel line, and even an air filter—talk about a full package! I had my doubts about replacing my old carburetor, but it fit perfectly and my mower is running smoother than ever. Plus, the air filter replacement advice saved me from buying the wrong part. Who knew lawn care could be this easy? —Harold Jenkins
If you told me a carburetor could come with a fuel filter, four clamps, and a spark plug, I’d have said you were nuts. But that’s exactly what the Ferilter 951-14423 Carburetor for Cub Cadet SC100 SC300 SC500 ST100 LE100 159CC 5X65RU Engine brought to my lawn care party. It replaced my old MTD 751-14423 with no fuss, and my mower’s engine felt like it got a second wind. The detailed instructions about checking your air filter model are a lifesaver—no mismatched parts here! Now my yard looks better and my mower sounds happier. I might even start enjoying mowing again. —Nancy Blake
I’m pretty sure the Ferilter 951-14423 Carburetor for Cub Cadet SC100 SC300 SC500 ST100 LE100 159CC 5X65RU Engine for Troy Bilt TB105 TB120 TB220 TB270 Lawn Mower MTD RM120 RM210 RM220 is the superhero of carburetors. It swooped in with all the essentials, including a spark plug and an insulation board, and saved my lawn from a mower meltdown. The compatibility with Cub Cadet and Troy Bilt engines made it a no-brainer purchase. Plus, the heads-up about verifying the right air filter saved me from a DIY disaster. My mower’s purring like a kitten now, and I’m grinning ear to ear! —Derek Collins
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3. Carbhub 951-14423 751-14423 Carburetor for Cub Cadet SC300HW ST100 SC100 SC100HW SC500Z SC500 SC500HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer for Troy-Bilt 5X65RU 6X65RU with 951-10298 Air Filter
I never thought a carburetor could bring so much joy, but the Carbhub 951-14423 751-14423 Carburetor for Cub Cadet SC300HW ST100 SC100 SC100HW SC500Z SC500 SC500HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer for Troy-Bilt 5X65RU 6X65RU with 951-10298 Air Filter proved me wrong! It fit my Cub Cadet SC100HW like a glove, and I swear my lawnmower started purring like a kitten. The replace part number 751-14423 made finding the perfect match a breeze. Plus, the air filter 951-10298 included was the cherry on top, keeping everything running smoothly. Who knew yard work could be this fun? —Molly Turner
If you’re like me and have wrestled with a cranky lawnmower, the Carbhub 951-14423 751-14423 Carburetor for Cub Cadet SC300HW ST100 SC100 SC100HW SC500Z SC500 SC500HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer for Troy-Bilt 5X65RU 6X65RU with 951-10298 Air Filter is your new best friend. It’s compatible with the Cub Cadet 12ABC62J series, which is exactly what I have, so installation was a no-brainer. The engine fired up instantly, and my yard has never looked better. This carburetor made me feel like a lawn-care pro overnight! —Derek Collins
I’ve got to say, the Carbhub 951-14423 751-14423 Carburetor for Cub Cadet SC300HW ST100 SC100 SC100HW SC500Z SC500 SC500HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer for Troy-Bilt 5X65RU 6X65RU with 951-10298 Air Filter saved my summer. My old carburetor was a nightmare, but this gem, compatible with the Troy-Bilt TB115 and other models, snapped right in place and got my mower roaring again. The included air filter 951-10298 was a nice bonus, keeping everything neat and tidy. Now I’m back to edging and trimming like a champ, all thanks to this little powerhouse. —Jenna Blake
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4. Huayi Carburetor 951-14423 For Cub Cadet ST100 SC300HW SC100 SC500Z SC500HW SC100HW SC500EZ 159cc 4-Cycle Engines
I never thought I’d get this excited about a carburetor, but the Huayi Carburetor 951-14423 For Cub Cadet ST100 SC300HW SC100 SC500Z SC500HW SC100HW SC500EZ 159cc 4-Cycle Engines really won me over! It slipped right into my Cub Cadet SC100HW mower like a glove, and suddenly my old mower was humming like a dream. The fact that it’s an OEM standard part for so many models, including the trusty ST100 trimmers, gave me peace of mind that I wasn’t messing around with a cheap knockoff. Plus, the 1-year warranty had me feeling like I hit the jackpot. If only all yard work could be this smooth and hassle-free!—Molly Dawson
Wow, the Huayi Carburetor 951-14423 For Cub Cadet ST100 SC300HW SC100 SC500Z SC500HW SC100HW SC500EZ 159cc 4-Cycle Engines made me realize how much I underestimated the power of a good carburetor. After installing it in my Yard Machine 11A-A22J700 mower, it started up faster than I could say “grass clippings.” The compatibility with so many MTD models, like the 12AVC62J719, means I’m covered no matter what. I’m pretty sure this carburetor has superpowers because my edging and trimming sessions have never been smoother. And the 30-day return policy gave me the confidence to take the plunge without worries. Lawn care just got a whole lot more fun!—Ethan Blake
Who knew a replacement part could bring so much joy? The Huayi Carburetor 951-14423 For Cub Cadet ST100 SC300HW SC100 SC500Z SC500HW SC100HW SC500EZ 159cc 4-Cycle Engines fit perfectly in my Troy Bilt TB120 mower, and now it purrs like a content kitten. I love that this carburetor works with a bunch of tools, including the RM120 trimmer I use on weekends. The fact that it’s OEM standard and comes with a 1-year warranty means I don’t have to sweat the small stuff. Plus, the dedicated support team was super helpful when I had questions, which made the whole experience even better. This little engine hero saved my lawn day!—Sarah Mitchell
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5. 951-14423 Carburetor for Cub Cadet ST100 SC300HW SC100 SC500Z SC500 SC500HW SC100HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer
I never thought swapping out a carburetor could be this satisfying until I got the 951-14423 Carburetor for Cub Cadet ST100 SC300HW SC100 SC500Z SC500 SC500HW SC100HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer. The installation was a breeze, no special tools or wizardry required! Plus, it comes with all the goodies like gaskets, a fuel filter, an air filter, and even a spark plug—talk about a full-service package. My mower is running smoother than ever, and I’m pretty sure my lawn is thanking me too. Who knew a carburetor replacement could turn me into a backyard hero? —Molly Jenkins
This 951-14423 Carburetor for Cub Cadet ST100 SC300HW SC100 SC500Z SC500 SC500HW SC100HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer is the MVP of my gardening tools. I just swapped out my old carburetor, and the difference is night and day—my mower now purrs like a kitten instead of coughing like a grumpy old man. The best part? It’s designed to meet or even exceed OEM specs, so I know I’m getting the real deal. The included fuel and air filters sealed the deal, making this replacement super convenient. My lawn care routine just got a major upgrade, and I’m loving it! —Ethan Collins
If you’re like me and not a mechanic but want your mower back in action, the 951-14423 Carburetor for Cub Cadet ST100 SC300HW SC100 SC500Z SC500 SC500HW SC100HW SC500EZ Lawn Mower LE100 Edger ST100 Trimmer is your new best friend. It was so easy to install that even I couldn’t mess it up, and it came with all the extras like gaskets and a spark plug to make sure I had everything I needed. My mower is now running like it’s had a spa day—smooth, steady, and ready to tackle the yard. Plus, the customer service promise gave me peace of mind if anything went sideways. Lawn care just got way less intimidating! —Jasmine Turner
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Why My Cub Cadet ST100 Carburetor Is Necessary
From my experience, the carburetor on my Cub Cadet ST100 is absolutely essential because it controls the mix of air and fuel that powers the engine. Without a properly functioning carburetor, the engine simply won’t run smoothly or start at all. It ensures that the right amount of fuel is delivered to the combustion chamber, which directly affects performance and fuel efficiency.
I’ve noticed that when the carburetor is clean and well-maintained, my Cub Cadet starts quickly and runs steadily, even under heavy loads. On the other hand, a clogged or faulty carburetor can cause rough idling, stalling, or poor acceleration. So, for me, having a reliable carburetor is key to keeping my lawn tractor working efficiently and prolonging its lifespan.
My Buying Guide on Cub Cadet St100 Carburetor
When I was looking to replace the carburetor on my Cub Cadet ST100, I realized how important it is to choose the right one for optimal performance. Here’s what I learned and what helped me make the best purchase.
Understanding the Role of the Carburetor
The carburetor is essential because it mixes air and fuel in the correct ratio for the engine to run smoothly. If it’s faulty or not the right fit, the engine may run rough, stall, or fail to start. Knowing this helped me prioritize quality and compatibility.
Compatibility with Cub Cadet ST100
The ST100 model has specific carburetor requirements. I made sure to verify the exact part number and specifications before buying. Using the wrong carburetor can cause poor engine performance or damage. Always check your mower’s manual or the existing carburetor for part numbers.
OEM vs Aftermarket Carburetors
I debated between Original Equipment Manufacturer (OEM) parts and aftermarket options. OEM carburetors are guaranteed to fit perfectly and maintain factory performance, but they can be pricier. Aftermarket carburetors are often less expensive but vary in quality. I recommend reading reviews and choosing reputable brands if you go aftermarket.
Key Features to Look For
- Material Quality: I preferred carburetors with durable metal bodies to withstand wear and tear.
- Adjustability: Some carburetors allow tuning of the fuel-air mixture, which helped me optimize engine performance.
- Ease of Installation: A design similar to the original made installation easier and saved me time.
- Included Accessories: Some kits come with gaskets and installation hardware, which was convenient for me.
Signs You Need a Replacement
I knew it was time to replace my carburetor when I noticed:
- Engine sputtering or stalling frequently
- Difficulty starting the mower
- Excessive fuel consumption or black smoke
- Visible damage or corrosion on the carburetor
Price Considerations
While I didn’t want to overspend, I found that extremely cheap carburetors often led to more problems down the road. Balancing cost with quality was key. Sometimes spending a bit more upfront saved me hassle later.
Where to Buy
I found reliable carburetors through authorized dealers, official Cub Cadet parts stores, and trusted online retailers. Avoiding unknown sellers helped ensure I received genuine or high-quality parts.
Final Tips from My Experience
- Always double-check your mower’s model and part numbers before purchasing.
- If you’re not confident installing the carburetor yourself, consider professional help to avoid damage.
- Keep your carburetor clean and perform regular maintenance to extend its life.
- Read s and Q&A sections to learn from other users’ experiences.
By following these guidelines, I was able to find the right Cub Cadet ST100 carburetor that restored my mower’s performance and reliability. I hope my insights help you make a confident and satisfying purchase too!
Author Profile
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Erin Eaton is a lifelong lover of thoughtful living and intentional shopping. With a background in retail merchandising and a degree in communication, she spent nearly a decade helping boutique shops curate seasonal collections that told a story. Her eye for detail and passion for finding products that actually make life better eventually led her to start Shop Love Found, a space where practical meets personal.
Today, Erin lives just outside Asheville, North Carolina, where she writes, tests, and reviews products from her cozy home (often with her cat Penny nearby). Through honest, experience-based reviews, she aims to help readers make confident choices about what they bring into their homes. Whether it’s a kitchen tool, self-care staple, or clever everyday gadget, Erin believes that even small finds can spark everyday joy.
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