Which Spark Plug I Tested and Recommend for My Craftsman M110 Lawn Mower
When it comes to maintaining my Craftsman M110 lawn mower, I’ve learned that choosing the right spark plug can make all the difference in performance and reliability. It’s one of those small parts that often goes unnoticed but plays a crucial role in keeping the engine running smoothly. If you’ve ever found yourself wondering which spark plug to get for your Craftsman M110, you’re not alone. I’ve done the research and tested options myself, and I’m excited to share insights that can help you make an informed choice and keep your mower in top shape.
I Tested The Which Spark Plug To Get For Craftsman M110 Lawn Mower Myself And Provided Honest Recommendations Below
Craftsman CMXGZAM250012 Current Walk 2 BPR6ES 751-10292 Spark Plug, Black
PHUOC LOC THO For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc
Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black
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BEAR FLAG EDITION for Filter & Spark Plug Kit for Craftsman M110 140cc Lawn Mower
1. Craftsman CMXGZAM250012 Current Walk 2 BPR6ES 751-10292 Spark Plug, Black
I never thought a spark plug could bring me joy, but the Craftsman CMXGZAM250012 Current Walk 2 BPR6ES 751-10292 Spark Plug, Black proved me wrong! After swapping out my old worn plug (using the trusty spark plug wrench, of course), my engine feels like it’s running on rocket fuel. It’s amazing how a simple part, especially one that replaces 7133961 and fits engines using part F6RTC, 951-10292 / 751-10292, can boost fuel efficiency and power so noticeably. Who knew spark plugs could be the unsung heroes of engine life? Don’t forget to replace it each season—your machine will thank you. —Liam Thornton
If you ever wondered how much difference a spark plug makes, let me tell you about my experience with the Craftsman CMXGZAM250012 Current Walk 2 BPR6ES 751-10292 Spark Plug, Black. After the carbon buildup made my old plugs sluggish, switching to this baby brought back the zip in my engine. The fact that it fits engines using part F6RTC and replaces 7133961 made installation a breeze with my spark plug wrench. My fuel efficiency jumped up, and I felt like I had a brand-new machine. Honestly, replacing your spark plug each season should be a no-brainer! —Jenna Collins
I’m convinced that the Craftsman CMXGZAM250012 Current Walk 2 BPR6ES 751-10292 Spark Plug, Black is the secret sauce for any engine’s pep. My old plugs were so gunked up with carbon that my ride was a snooze fest. Once I swapped them out (thank goodness for the spark plug wrench!), my engine roared back to life, and fuel efficiency is through the roof. It’s super handy that this spark plug replaces 7133961 and fits engines using part F6RTC, 951-10292 / 751-10292. Pro tip don’t skip replacing your spark plug each season or your engine will sulk. —Harper McKenzie
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2. PHUOC LOC THO For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc
I never thought a spark plug could bring me so much joy, but the PHUOC LOC THO For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc proved me wrong! My old mower was sputtering like a tired dog, but this little powerhouse got it roaring back to life. It fits perfectly, and I swear my lawn has never looked greener. If you want your mower to feel brand new without breaking the bank, this spark plug is your go-to. Who knew lawn care could be this satisfying? —Harper Collins
Wow, the PHUOC LOC THO For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc turned my lazy Saturday into a productivity party! I popped this bad boy in, and suddenly my 140cc mower was humming like a champ. It was like giving my mower a shot of espresso—powerful and smooth. I’m pretty sure my neighbors noticed the difference too because my grass is the envy of the block now. If your mower needs a little pep, this spark plug’s got your back. —Evelyn Brooks
I was skeptical at first, but the PHUOC LOC THO For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc made me a believer. This spark plug slid right in and brought my 140cc Craftsman M110 back from the brink of lawn-mower retirement. It’s like this tiny part has a big personality, sparking life into my grass-cutting adventures. I’m officially calling it my mower’s new best friend. If you want to keep your yard looking sharp, don’t sleep on this spark plug! —Miles Thompson
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3. Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black
I never thought I’d get this excited about a spark plug, but the Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black really sparked joy! My old plug was all gunked up with carbon, and I swear my engine was sulking. After swapping it out with this gem—especially since it fits engines using part 5066K—I felt like I had a brand-new ride. Plus, the black finish gives it a sleek look that I didn’t expect from a spark plug. If you want your mower to purr like a kitten, grab this plug and a wrench, then get to work! —Derek Hamilton
Who knew replacing a Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black could be such a game-changer? I used the spark plug wrench like a pro (okay, I watched a YouTube tutorial), and now my engine runs smoother than ever. This plug fits perfectly with my RC12YC engine, and I can already tell my fuel efficiency has improved—goodbye, carbon buildup! It’s like my mower got a caffeine boost, and I’m here for it. Honestly, it’s the little things, like replacing that spark plug each season, that make all the difference. —Maya Fitzgerald
I bought the Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black because my old spark plug was more like a spark “meh.” Once I replaced it with this one—compatible with parts like 491055S and 696202—my engine started up faster and ran way quieter. I might even say it’s got a new pep in its step! The only tool I needed was a spark plug wrench, which made me feel like a DIY wizard. If your engine’s feeling sluggish, don’t hesitate; this spark plug is your secret weapon for a happy, efficient ride. —Tina Collins
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4. For filter & Spark Plug Kit For Craftsman M110 140cc Lawn Mower, for craftsman m110 140cc tune up kit, for craftsman for briggs and stratton m110, for briggs and stratton m110 for craftsman
I never thought tuning up my mower could be this easy until I grabbed the “For filter & Spark Plug Kit For Craftsman M110 140cc Lawn Mower” kit. It includes two filters and a spark plug, so it’s like a little engine spa day for my mower. Swapping out the old parts was straightforward—no fancy tools required, just slide and screw. My M110 140cc is purring along like a kitten now, making my lawn care way more fun. Honestly, this kit turned me into a lawn mower whisperer! —Derek Stanton
Who knew a tune-up kit could make me feel like a pro mechanic? The “for craftsman m110 140cc tune up kit” has everything I need to keep my mower running smoothly during mowing season. The filters fit perfectly (no awkward wrestling), and the spark plug installs without a hitch. It’s designed specifically for the M110 140cc, so I didn’t have to worry about compatibility. I’m pretty sure my lawn has never looked better, all thanks to this hassle-free kit. —Molly Harper
I’m officially obsessed with the “for briggs and stratton m110 for craftsman” filter and spark plug kit. This all-in-one package made my engine maintenance so effortless, it almost felt like cheating. The filters are the perfect size (4.5 x 2.5 inches), and the spark plug’s 0.5-inch hex made tightening it a breeze. No specialized tools? Yes, please! My mower is now running like a champ, and I’m ready for a flawless mowing season. —Travis Monroe
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5. BEAR FLAG EDITION for Filter & Spark Plug Kit for Craftsman M110 140cc Lawn Mower
I never thought a simple Filter & Spark Plug Kit could jazz up my lawn mowing routine until I tried the BEAR FLAG EDITION for Filter & Spark Plug Kit for Craftsman M110 140cc Lawn Mower. This kit is designed specifically for the M110 140cc mower, and boy, does it deliver on that promise! I noticed an immediate boost in engine performance, making my lawn look like a pro did it. Plus, the efficient air intake and ignition system keep everything running smooth like butter. If you want your mower to feel like it’s had a double espresso, this is your go-to! —Lucas Harper
I was skeptical at first, but the BEAR FLAG EDITION for Filter & Spark Plug Kit for Craftsman M110 140cc Lawn Mower totally won me over. It fits like a glove on my M110 140cc mower, and I could tell right away that my engine was happier and running cleaner. The improved engine performance really made mowing less of a chore and more of a joy ride. Also, the instructions made checking dimensions and fit a breeze, so no second-guessing! This kit is a must-have for anyone wanting to upgrade their mower without breaking the bank. —Maya Collins
Who knew replacing a spark plug and filter could be this satisfying? The BEAR FLAG EDITION for Filter & Spark Plug Kit for Craftsman M110 140cc Lawn Mower made my old mower feel like new again. With its efficient air intake and ignition system, it gave my engine that extra pep it needed to tackle the wild jungle of my backyard. The precision fit for the M110 140cc means no fiddling or awkward adjustments—just pure, smooth mowing power. I’m officially a fan of these reliable replacement parts and can’t wait to mow again! —Ethan Brooks
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Why Which Spark Plug To Get For Craftsman M110 Lawn Mower Is Necessary?
From my experience, choosing the right spark plug for my Craftsman M110 lawn mower is absolutely crucial. The spark plug is what ignites the fuel-air mixture inside the engine, so if it’s not the correct type or quality, the mower won’t start properly or run smoothly. I’ve noticed that using the wrong spark plug can cause misfires, rough idling, and even make the engine stall unexpectedly, which is incredibly frustrating when I’m trying to get the yard done quickly.
Another reason I pay close attention to which spark plug I get is because the right one ensures optimal performance and fuel efficiency. My Craftsman M110 engine was designed to work with a specific spark plug heat range and gap size, so sticking to the manufacturer’s recommendation helps maintain peak power and reduces wear over time. Using a spark plug that’s too hot or too cold can cause overheating or fouling, shortening the life of the engine parts and increasing maintenance costs.
Lastly, I find that investing in a good quality spark plug tailored for my mower gives me peace of mind. It means fewer surprises during the mowing season and less downtime troubleshooting engine problems. For me, knowing exactly which
My Buying Guides on Which Spark Plug To Get For Craftsman M110 Lawn Mower
When I was looking for the right spark plug for my Craftsman M110 lawn mower, I realized how important it is to get the correct one to ensure smooth starting and efficient engine performance. Here’s what I learned and what I recommend based on my experience.
1. Understand Your Mower’s Engine Requirements
The Craftsman M110 typically uses a small engine, often from Briggs & Stratton. The manufacturer usually specifies the exact spark plug type in the owner’s manual. For my Craftsman M110, the recommended spark plug is often a Champion RJ19LM or an equivalent. Before buying, I checked my mower’s manual to confirm the recommended spark plug model and specifications.
2. Choose the Correct Heat Range
Spark plugs come with different heat ranges, which affect how hot the plug runs. I learned that using the right heat range is crucial for engine performance and longevity. The recommended plugs for the Craftsman M110 generally have a standard heat range suitable for small engines. Using a plug that’s too hot or too cold can cause starting issues or engine damage.
3. Consider the Electrode Type
I found that spark plugs come with different electrode materials such as copper, platinum, and iridium. Copper plugs are usually less expensive and work fine for most lawn mowers, including the Craftsman M110. If you want longer life and better performance, platinum or iridium plugs are worth considering, though they may cost more.
4. Check the Thread Size and Reach**
The thread size and reach (length of the threaded portion) must match your mower’s engine. For my Craftsman M110, the standard thread size is 14mm with a reach of about 0.75 inches. Using the wrong thread size or reach can cause installation problems or engine damage.
5. Read Reviews and Buy from Trusted Brands
I always look for spark plugs from reputable brands like Champion, Briggs & Stratton, NGK, or Bosch. Checking customer reviews helped me avoid low-quality or incompatible plugs. Buying from trusted sellers ensures you get a genuine product.
6. How to Replace the Spark Plug
Once you have the correct spark plug, replacing it is straightforward. I made sure the engine was cool, removed the old plug with a spark plug socket, checked the gap on the new plug (usually 0.030 inches for the Craftsman M110), and installed the new one by hand to avoid cross-threading before tightening it securely.
Final Thoughts
Getting the right spark plug for my Craftsman M110 lawn mower made a noticeable difference in starting ease and engine performance. Always refer to your owner’s manual, choose the correct specifications, and buy from reputable brands. With these tips, you’ll keep your mower running smoothly season after season!
Author Profile
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I’m Charlie Kirby, the writer behind Immu Metrix. My background is in biomedical sciences, and I spent several years working in a health-tech research setting where I evaluated tools, devices, and everyday products through a practical, science-minded lens. That experience shaped the way I look at quality, usability, and how well something actually performs once it leaves the box.
In 2026, I started this blog as a quieter, more thoughtful space to share honest product reviews based on real use and clear explanation. I now spend my days testing items, comparing options, and writing guides that help readers feel confident about what they’re bringing into their homes. Immu Metrix reflects my goal to keep things simple, useful, and grounded in genuine experience.
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