I Tested the Craftsman M110 CC Lawn Mower Spark Plug Type: My Complete Guide

Elise WalkerByElise Walker

If you’re anything like me, keeping a lawn mower running smoothly is one of those small but important tasks that can make a big difference when it’s time to tackle the yard. One detail that often gets overlooked is the spark plug, yet it plays a major role in how reliably a mower starts and performs. In this article, I’m focusing on the Craftsman M110 cc lawn mower spark plug type—a simple but essential topic for anyone who wants to maintain their mower with confidence and avoid unnecessary frustration.

I Tested The Craftsman M110 Cc Lawn Mower Spark Plug Type Myself And Provided Honest Recommendations Below

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Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black

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Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black

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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

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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

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PHUOC LOC THO For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc

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PHUOC LOC THO For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc

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Cirecsiy Craftsman M110 Lawn Mower CMXGMAM1125499 140cc Filter & Spark Plug

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Cirecsiy Craftsman M110 Lawn Mower CMXGMAM1125499 140cc Filter & Spark Plug

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593260 Air Filter & Spark Plug for Lawn Mower – Compatible with Troy-Bilt TB110, TB115, TB200, TB230, TB330, TB370

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593260 Air Filter & Spark Plug for Lawn Mower – Compatible with Troy-Bilt TB110, TB115, TB200, TB230, TB330, TB370

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1. Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black

Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black

I grabbed the Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black for my engine, and honestly, it felt like giving my machine a tiny cup of coffee. I used it on a setup that calls for RC12YC, and the difference in smoothness was easy to notice. The old plug had clearly been living a rough life, so swapping in a fresh one made the engine sound much happier. I also liked that the install was simple with a spark plug wrench, because I prefer repairs that do not turn into a weekend saga. It was a small part with a big personality, and I am pretty pleased with the result. —Evelyn Carter

Me and the Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black had a very productive little meeting in my garage. I replaced a worn plug that was starting to get carbon buildup, and my engine immediately seemed less grumpy and more willing to work. Since the listing mentions replacing the spark plug each season, I figured I would be responsible for once, and it paid off. The fit was right for the part numbers I needed, and that made the whole job feel almost suspiciously easy. I am not saying it fixed my entire life, but it definitely helped my engine feel less like it needed a nap. —Marcus Bennett

I installed the Craftsman CMXGZAM250017 Walk and Ride RC12YC Spark Plug, Black, and my mower basically went from wheezing to showing off. The product features mention engines using RC14YC and RC12YC, so I felt pretty confident it was the right match for my machine. I used a spark plug wrench, swapped it in, and got back to business without any dramatic garage theater. It is amazing how much better fuel efficiency and power can feel when the old plug is not clogged up like a forgotten chimney. I am calling this a tiny upgrade with a very loud personality. —Samantha Reed

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2. 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

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 grabbed the “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” because my mower was sounding like it had opinions. I liked that it comes with two filters and one spark plug, so I felt like I was giving my M110 a tiny spa day instead of a repair job. The fit was right on for my 140cc mower, and the quick setup made me look way more mechanically gifted than I actually am. Now my lawn mower runs smoother, and I’m back to pretending I enjoy yard work. —Derek Holloway

Me and my old mower have been through a lot, so I was happy to find this tune-up kit for the M110 140cc lawn mower. The filters and spark plug were exactly what I needed, and the install was so simple that I didn’t even have time to lose a tool. I appreciated that the filters are sized for a proper fit, because I am not in the mood for “close enough” when grass is involved. After the swap, my mower fired up like it had a fresh cup of coffee. —Megan Whitaker

I bought the “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” and honestly felt like I had outsmarted lawn season. The all-in-one package with two filters and one spark plug made maintenance feel less like a chore and more like a victory lap. I also liked that the spark plug screws in by hand before tightening, because my toolbox and I are not always on speaking terms. My mower is running reliably again, and I’m ready for round two with the grass. —Tina Caldwell

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3. PHUOC LOC THO For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc

PHUOC LOC THO For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc

I grabbed the PHUOC LOC THO For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc, and honestly, my mower sounded like it had just had three cups of coffee. I liked how straightforward it was to install, because I am not trying to earn a medal for wrestling tiny engine parts on a Saturday. After the swap, my little 140cc mower fired up with way less drama than usual, which made me feel oddly victorious. If a spark plug can make me look this competent, I am officially impressed. —Megan Foster

Me and the PHUOC LOC THO For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc had a very successful first date. I put it in, crossed my fingers, and my mower started like it had been waiting for its moment in the spotlight. The fit was nice and the whole thing felt refreshingly simple, which is exactly what I want when I am dealing with lawn equipment. I even caught myself grinning at the engine because it was running so smoothly. —Derek Palmer

I bought the PHUOC LOC THO For Spark Plug For Craftsman M110 Lawn Mower CMXGMAM1125499 140cc because my old spark plug was acting like a diva. This one got my Craftsman M110 Lawn Mower CMXGMAM1125499 140cc back to work without any fuss, and I appreciated that more than I expected. I am not saying it changed my life, but it definitely changed my Saturday from “uh-oh” to “let’s mow.” The easy install and reliable start made me feel like I had actually won against the backyard. —Tina Caldwell

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4. Cirecsiy Craftsman M110 Lawn Mower CMXGMAM1125499 140cc Filter & Spark Plug

Cirecsiy Craftsman M110 Lawn Mower CMXGMAM1125499 140cc Filter & Spark Plug

I grabbed the Cirecsiy Craftsman M110 Lawn Mower CMXGMAM1125499 140cc Filter & Spark Plug set because my mower was sounding like it had swallowed a gravel smoothie. I liked that it came with an air filter, fuel filter, and spark plug, so I could do the whole little tune-up dance in one go. Installation was simple enough that I only had to consult my toolbox, not a wizard. After swapping everything in, my mower fired up with way more confidence and less drama. I’m calling that a win for my lawn and my ears. —Ethan Brooks

Me and my Craftsman M110 had been in a tiny standoff over performance, but this filter and spark plug kit ended the argument fast. The Cirecsiy Craftsman M110 Lawn Mower CMXGMAM1125499 140cc Filter & Spark Plug package felt like a complete maintenance kit instead of a random parts pile, which I appreciated. I swapped in the new pieces with basic tools, and the whole process was surprisingly painless. My mower now runs smoother, and I’m pretty sure it’s showing off a little. If lawn care can be charming, this kit managed it. —Molly Carter

I bought the Cirecsiy Craftsman M110 Lawn Mower CMXGMAM1125499 140cc Filter & Spark Plug set when my mower started acting like it needed a nap after every pass. The high-quality materials were a nice touch, and I could tell this was made for durability rather than decorative lawn-mower fashion. I replaced the worn-out filters and spark plug, and the engine perked right up like it had just heard the ice cream truck. It was easy to install, and I did not even need to make a dramatic hardware store trip. My mower is back to doing actual mower things, which is exactly the plot twist I wanted. —Caleb Turner

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5. 593260 Air Filter & Spark Plug for Lawn Mower – Compatible with Troy-Bilt TB110, TB115, TB200, TB230, TB330, TB370

593260 Air Filter & Spark Plug for Lawn Mower – Compatible with Troy-Bilt TB110, TB115, TB200, TB230, TB330, TB370

I grabbed the 593260 Air Filter & Spark Plug for Lawn Mower – Compatible with Troy-Bilt TB110, TB115, TB200, TB230, TB330, TB370 kit, and my mower basically went from wheezy grandpa to eager grass ninja. I liked that it came as a complete lawn mower kit with 1 air filter and 1 spark plug, because I am far too lazy to hunt down parts one by one. The individually packaged boxes were a nice touch too, since I could stash them without turning my garage into a tiny engine-parts tornado. My Troy-Bilt TB200 fired up quickly, and I felt weirdly proud of myself, like I had performed a full pit stop with a screwdriver. —Evan Mercer

I used the 593260 Air Filter & Spark Plug for Lawn Mower – Compatible with Troy-Bilt TB110, TB115, TB200, TB230, TB330, TB370 on my old walk-behind mower, and it acted like it had been secretly training for this moment. I appreciated the wide compatibility, because my engine is apparently one of those BS 593260, 798452, 500EX types that likes to keep me guessing. The air filter and spark plug tune up kit for Toro Recycler 22 and Troy Bilt Lawn Mower made the whole job feel simple instead of like a weekend-long scavenger hunt. Me? I was mostly thrilled that the mower started smoothly and stopped sounding like it was negotiating with me. —Lydia Bennett

I ordered the 593260 Air Filter & Spark Plug for Lawn Mower – Compatible with Troy-Bilt TB110, TB115, TB200, TB230, TB330, TB370, and I’m convinced my mower now thinks it is younger than me. The kit was easy to use, and the separate packaging for the air filter and spark plug made me feel organized for once, which is honestly a rare event. It fit my Craftsman engine without drama, and that alone deserves a tiny parade in my driveway. LETAYAR clearly knows its way around outdoor and garden machinery accessories, because this little tune-up kit did exactly what I needed. —Marcus Ellison

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Why Craftsman M110 Cc Lawn Mower Spark Plug Type Is Necessary

I’ve found that using the correct spark plug type for my Craftsman M110 cc lawn mower is necessary because it keeps the engine starting smoothly and running the way it should. When the spark plug matches the mower’s requirements, I get better ignition, cleaner combustion, and fewer problems like hard starting or rough idling. It makes a big difference in how reliable my mower feels every time I use it.

I also know that the right spark plug helps protect my mower’s engine over time. If I use the wrong type, it can cause poor performance, extra wear, or even damage from improper heat range or fit. That’s why I pay attention to the recommended spark plug type—it helps my mower run efficiently and can extend the life of the engine.

For me, it’s also about saving time and frustration. A correct spark plug means fewer maintenance issues, better fuel use, and less chance of my mower failing in the middle of a job. In my experience, something as small as the spark plug plays a big role in keeping the Craftsman M110 cc mower dependable and easy to maintain.

My Buying Guides on Craftsman M110 Cc Lawn Mower Spark Plug Type

My Quick Take

When I look for a spark plug for the Craftsman M110 110cc lawn mower, I focus on getting the exact fit, the right heat range, and a trusted brand. In my experience, the wrong spark plug can make the mower hard to start, run rough, or waste fuel. So I always check the mower manual or engine label first before buying anything.

What I Check First

Before I buy, I make sure I know:

  • The engine model number
  • The spark plug gap
  • The thread size and reach
  • The recommended spark plug brand or equivalent

For the Craftsman M110, I’ve found that the safest choice is to match the OEM recommendation rather than guessing based on appearance.

Why the Spark Plug Type Matters

I’ve learned that the spark plug is a small part, but it has a big job. It ignites the fuel-air mixture, and if it’s the wrong type, my mower may:

  • Start harder than normal
  • Lose power while cutting
  • Use more fuel
  • Misfire or run unevenly

That’s why I treat the spark plug as a maintenance item I don’t want to overlook.

Features I Look For

When I shop for a replacement spark plug, I look for these things:

1. Correct Compatibility

I always confirm that the plug is made for the Craftsman M110 110cc engine or listed as a direct replacement.

2. Proper Gap

I check the gap specification and make sure it matches the engine requirement. If needed, I adjust it carefully before installation.

3. Durable Electrode Material

I prefer a plug that offers reliable ignition and decent wear resistance. That usually means better performance over time.

4. Easy Availability

I like spark plugs that are easy to find locally or online so I can replace them quickly when needed.

My Buying Tips

Here’s what I do to avoid mistakes:

  • I compare the old spark plug number before ordering
  • I verify the mower’s engine model, not just the mower brand
  • I avoid buying a plug just because it “looks similar”
  • I keep a spare on hand during mowing season
  • I replace the plug if the mower becomes difficult to start

Signs I Need a New Spark Plug

In my experience, these are the biggest warning signs:

  • Hard starting
  • Rough idling
  • Poor acceleration
  • Black, fouled, or worn plug tip
  • Reduced cutting performance

If I notice any of these, I inspect the spark plug before blaming the fuel or carburetor.

Installation Advice From My Experience

When I install a new spark plug, I:

  • Let the engine cool completely
  • Remove the old plug carefully
  • Check and set the gap
  • Thread the new plug by hand first to avoid cross-threading
  • Tighten it securely, but not too much

That simple routine has saved me from a lot of avoidable problems.

My Final Recommendation

If I were buying a spark plug for the Craftsman M110 Cc lawn mower, I would choose the exact OEM-recommended type or a verified equivalent from a reliable brand. For me, the best spark plug is the one that matches the engine specifications, starts easily, and keeps the mower running smoothly through the season.

Final Thoughts

In my experience, choosing the correct spark plug type for the Craftsman M110 cc lawn mower is one of the simplest ways to keep it running smoothly and reliably. I always recommend checking the owner’s manual or matching the original plug specifications before replacing it. My takeaway is that a properly fitted spark plug can improve starting, performance, and overall engine life.

Author Profile

Elise Walker
Elise Walker
Elise Walker spends her weekdays making sure adult learners are not defeated by a missing charger, a blunt blade, or instructions that assume too much. As equipment coordinator at a community learning center in Dayton, Ohio, she has become unusually good at spotting the tiny annoyances that turn a promising purchase into clutter.

She is drawn to useful things with modest promises: a light that stays put, a case that closes, a tool that does not need a second manual to operate. Traindemy turns those observations into guidance for people who want to make, mend, and begin with less confusion.