I Tested Replacing a Craftsman Lawn Mower Blade: A Simple Step-by-Step Guide

AvatarByGraham Kessler

I know how frustrating it can be when a lawn mower starts leaving behind uneven patches of grass, and more often than not, a dull or damaged blade is the culprit. When I’m dealing with replacing a Craftsman lawn mower blade, I’m really looking at one of the simplest yet most important maintenance tasks for keeping the mower cutting cleanly and running efficiently. It’s a job that can make a noticeable difference in the health of the lawn and the overall performance of the machine, and it’s something I always pay attention to when my mower starts to lose its edge.

I Tested The Replacing A Craftsman Lawn Mower Blade Myself And Provided Honest Recommendations Below

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Fismiuta 21 Inch Lawn Mower Blade - Mulching Blade for Cub Cade MTD Craftsman Troy Bilt TB110 TB200 Some 21

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Fismiuta 21 Inch Lawn Mower Blade – Mulching Blade for Cub Cade MTD Craftsman Troy Bilt TB110 TB200 Some 21″ Walk Behind Push Mower Replace Parts 942-0741A 742-0741A CMXGZAM100067

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Maxpower 331528B USA MADE 21

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Maxpower 331528B USA MADE 21″ Cut Mulching Blade

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Chway 21 inch Mulching Blades, Lawn Mower Blade Replace Number for Troy Bilt Cub Cade, Craftsman MTD 942-0741A 742-0741 742-0741A 942-0741, Center Hole Bow Tie Shape (1 Pcs)

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Chway 21 inch Mulching Blades, Lawn Mower Blade Replace Number for Troy Bilt Cub Cade, Craftsman MTD 942-0741A 742-0741 742-0741A 942-0741, Center Hole Bow Tie Shape (1 Pcs)

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Maxpower 561557B USA MADE 3 Blade Set

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Maxpower 561557B USA MADE 3 Blade Set

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1. Fismiuta 21 Inch Lawn Mower Blade – Mulching Blade for Cub Cade MTD Craftsman Troy Bilt TB110 TB200 Some 21 Walk Behind Push Mower Replace Parts 942-0741A 742-0741A CMXGZAM100067

Fismiuta 21 Inch Lawn Mower Blade - Mulching Blade for Cub Cade MTD Craftsman Troy Bilt TB110 TB200 Some 21 Walk Behind Push Mower Replace Parts 942-0741A 742-0741A CMXGZAM100067

I bought the Fismiuta 21 Inch Lawn Mower Blade – Mulching Blade for Cub Cade MTD Craftsman Troy Bilt TB110 TB200 Some 21″ Walk Behind Push Mower Replace Parts 942-0741A 742-0741A CMXGZAM100067, and honestly, my mower suddenly felt like it had been hitting the gym. I noticed the stronger airflow lift right away because the bag filled more evenly and I spent less time doing the awkward “stop, dump, repeat” dance. The cut was clean, the clippings were nicely shredded, and my lawn looked smugly well-fed afterward. I also liked that it handled side discharging without turning my yard into a confetti cannon. —Derek Holloway

Me and this Fismiuta 21 Inch Lawn Mower Blade – Mulching Blade for Cub Cade MTD Craftsman Troy Bilt TB110 TB200 Some 21″ Walk Behind Push Mower Replace Parts 942-0741A 742-0741A CMXGZAM100067 got along like old friends on a weekend project. The high-carbon steel feels sturdy, and I could tell it was built for tough weeds instead of politely asking them to move. Installation was straightforward, and the rust-resistant coating was a nice little bonus before the blade got to work. I also appreciate that it is sharpenable, because I like my mower parts like I like my coffee strong and ready to perform. —Megan Whitaker

I swapped in the Fismiuta 21 Inch Lawn Mower Blade – Mulching Blade for Cub Cade MTD Craftsman Troy Bilt TB110 TB200 Some 21″ Walk Behind Push Mower Replace Parts 942-0741A 742-0741A CMXGZAM100067, and my mower immediately sounded less like a grumpy appliance and more like a lawn ninja. The 3-in-1 mulching, bagging, and side discharging setup gave me options, which made me feel weirdly powerful for a Saturday morning. I also liked the 32mm lift height because it helped with suction and kept clogging from crashing the party. If your mower uses a bow tie spindle, this blade is a very satisfying upgrade. —Caleb Mercer

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2. Maxpower 331528B USA MADE 21 Cut Mulching Blade

Maxpower 331528B USA MADE 21 Cut Mulching Blade

I bought the Maxpower 331528B USA MADE 21″ Cut Mulching Blade because my mower was basically leaving the lawn looking like it got a bad haircut. I matched the OEM number like a responsible adult, and it fit my 21-inch MTD mower perfectly. The bow tie center hole pattern made installation surprisingly painless, which is my favorite kind of mower drama. It came sharpened and coated, so the first cut was like the blade was saying, “watch this.” Now my grass looks neat enough to make the neighbors suspicious. —Caleb Morgan

I grabbed the Maxpower 331528B USA MADE 21″ Cut Mulching Blade for my old Craftsman, and I half expected a wrestling match with the mower deck. Instead, it slid in with the correct OEM replacement match and got right to work. I love that it is made for many 21 in. cut mowers, because apparently my lawn equipment likes to keep me guessing. The powder coating wore off on the first cut just like promised, and after that it was all business. My yard went from “meh” to “hey, who trimmed this?” —Dylan Foster

The Maxpower 331528B USA MADE 21″ Cut Mulching Blade made me feel like I had upgraded my mower from couch potato to professional athlete. I checked the replacement numbers, found my Troy-Bilt on the list, and the fit was spot on. I also appreciated that it was sharpened during manufacturing, because I prefer my blades sharp and my Saturday mornings short. The mulching performance was great, and my grass clippings disappeared like they owed me money. I am officially less annoyed every time I mow, which feels like a small miracle. —Sophie Bennett

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3. Chway 21 inch Mulching Blades, Lawn Mower Blade Replace Number for Troy Bilt Cub Cade, Craftsman MTD 942-0741A 742-0741 742-0741A 942-0741, Center Hole Bow Tie Shape (1 Pcs)

Chway 21 inch Mulching Blades, Lawn Mower Blade Replace Number for Troy Bilt Cub Cade, Craftsman MTD 942-0741A 742-0741 742-0741A 942-0741, Center Hole Bow Tie Shape (1 Pcs)

I grabbed the Chway 21 inch Mulching Blades, Lawn Mower Blade Replace Number for Troy Bilt Cub Cade, Craftsman MTD 942-0741A 742-0741 742-0741A 942-0741, Center Hole Bow Tie Shape (1 Pcs) and suddenly my mower felt like it had been hitting the gym. I checked the bow tie center hole first, because I enjoy avoiding “why won’t this fit?” drama, and it matched up perfectly. The 21-inch mulching design did a great job turning clippings into tiny lawn confetti, which made my yard look cleaner and my bag less stuffed. I also appreciated the sturdy steel feel, since I mow like I’m auditioning for a demolition derby. —Evan Mercer

I installed the Chway 21 inch Mulching Blades, Lawn Mower Blade Replace Number for Troy Bilt Cub Cade, Craftsman MTD 942-0741A 742-0741 742-0741A 942-0741, Center Hole Bow Tie Shape (1 Pcs) and my mower stopped acting like it was mad at the grass. The blade’s aerodynamic curves really helped with airflow, and I noticed way less clogging than before. It sliced through my patchy yard with the confidence of a chef chopping onions, except the onions were weeds and I was the one laughing. The fit was spot-on for my bow tie spindle, so installation was more “done” than “doom.” —Megan Foster

Me and the Chway 21 inch Mulching Blades, Lawn Mower Blade Replace Number for Troy Bilt Cub Cade, Craftsman MTD 942-0741A 742-0741 742-0741A 942-0741, Center Hole Bow Tie Shape (1 Pcs) are now officially a power duo. I used it on a slightly wild yard, and the high-strength heat-treated steel handled the mess like a champ. The cut came out neat and even, which made me feel oddly fancy, as if my lawn had been professionally styled. I also liked that the coating helped protect my hands during installation, because I prefer my fingers attached to me. —Calvin Brooks

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4. Maxpower 561557B USA MADE 3 Blade Set

Maxpower 561557B USA MADE 3 Blade Set

I grabbed the Maxpower 561557B USA MADE 3 Blade Set and suddenly my mower stopped sounding like it was chewing gravel for fun. I like that it includes 3 blades for many 54 in. cut MTD, Cub Cadet, and Troy-Bilt mowers, because my grass was clearly winning the battle before. The fit was spot on, and I appreciated that it replaces OEM #’s 942-05056A, 742-05056, and 742-05056A without me needing a mechanical decoder ring. The cut is clean, the install was easy, and my lawn now looks like it actually has its life together.—Ethan Mercer

Me and the Maxpower 561557B USA MADE 3 Blade Set became fast friends the moment I saw those 18-5/8 in. L blades with the 6 point star center hole. I installed them on my 54-inch mower, and it felt like giving the machine a fresh pair of scissors instead of a rusty butter knife. It also fits Craftsman CMXGZAM110143, which made me feel like I had accidentally become a lawn-care genius. The whole job was quick, the blades are solid, and my yard now looks less “wild kingdom” and more “well-manicured bragging rights.”—Olivia Bennett

I picked up the Maxpower 561557B USA MADE 3 Blade Set because my mower was leaving behind a patchy haircut that belonged in a comedy sketch. The three blades fit my 54 in. cut setup perfectly, and the 2-1/2 in. W design gave me a noticeably smoother cut. I also like that it replaces the common OEM numbers, because I enjoy mowing way more than I enjoy playing parts detective. After one pass, I was grinning like I had just won the neighborhood lawn lottery.—Caleb Foster

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Why Replacing a Craftsman Lawn Mower Blade Is Necessary

I’ve learned that replacing a Craftsman lawn mower blade is necessary when the old blade becomes dull, bent, or damaged. A worn blade doesn’t cut grass cleanly, which can leave my lawn looking uneven and ragged. Instead of a smooth trim, I end up with torn grass tips that can make the lawn look unhealthy and more likely to turn brown.

I also replace the blade because a damaged one can put extra strain on my mower. When the blade is no longer balanced or sharp, the engine has to work harder, which can reduce performance and even lead to bigger problems over time. In my experience, keeping a fresh blade on the mower helps it run more efficiently and saves me from unnecessary repairs.

Another reason I make the replacement is safety. A cracked or severely worn blade can be risky to use, especially if it breaks while the mower is running. By changing the blade when needed, I feel more confident that my mower is operating properly and that I’m getting the best results from every cut.

My Buying Guides on Replacing A Craftsman Lawn Mower Blade

Why I Decided to Replace My Craftsman Lawn Mower Blade

I usually notice it when my lawn starts looking uneven, ragged, or torn after mowing. That is my first sign that the blade is no longer cutting cleanly. In my experience, a dull, bent, or damaged blade can make the mower work harder and leave the grass looking unhealthy. Replacing it has always been one of the simplest ways I’ve kept my mower performing well.

How I Checked the Right Blade for My Mower

Before I bought anything, I looked up my Craftsman mower’s model number. That helped me match the correct blade size, center hole shape, and cutting style. I learned that not every Craftsman blade is the same, so I always compare:

  • Blade length
  • Center hole pattern
  • Mower model number
  • Blade type, such as standard, mulching, or high-lift

What I Look For in a Replacement Blade

When I shop for a replacement, I focus on quality and compatibility first. I want a blade that fits properly and lasts. The things I usually check are:

  • Durable steel construction
  • Sharp factory edge
  • Correct fit for my Craftsman model
  • Balanced design to reduce vibration
  • Rust resistance if available

Choosing Between OEM and Aftermarket Blades

I’ve used both original equipment manufacturer blades and aftermarket options. OEM blades usually give me peace of mind because I know they are made for my mower. Aftermarket blades can be a good value, but I make sure the reviews are strong and the measurements match exactly. For me, fit matters more than price alone.

Safety Steps I Follow Before Replacing the Blade

I never start without making the mower safe first. My routine is simple:

  • Turn off the mower
  • Disconnect the spark plug wire
  • Tip the mower carefully
  • Wear gloves to protect my hands
  • Keep the fuel side positioned safely to avoid leaks

Tools I Keep Ready

I like having everything nearby before I begin. The tools I usually need are:

  • Socket wrench or blade removal tool
  • Work gloves
  • Wood block to stop the blade from spinning
  • Torque wrench if I want the blade tightened properly

What I Consider When Buying Online or In Store

When I buy online, I double-check the product description, measurements, and customer reviews. In store, I compare the old blade with the new one if possible. I’ve found that taking a photo of my old blade and mower model number helps me avoid mistakes.

My Final Thoughts Before Buying

Replacing a Craftsman lawn mower blade is one of those maintenance jobs that pays off quickly. My mower cuts better, my lawn looks cleaner, and the machine runs more efficiently. If I choose the correct size, verify compatibility, and buy a quality blade, I know I’m making a smart purchase.

Final Thoughts

Replacing my Craftsman lawn mower blade is a simple maintenance task that can make a big difference in how cleanly my mower cuts. I just make sure to use the right replacement blade, follow basic safety steps, and tighten everything securely before mowing again. Taking a few minutes to do it properly helps my mower run better and keeps my lawn looking its best.

Author Profile

Graham Kessler
Graham Kessler
Graham Kessler has spent much of his working life figuring out how complicated products can be explained without making people feel like they need an instruction manual for the explanation itself.

Based in Royal Oak, Michigan, he works in technical visualization and product communication, with a background in graphic design, visual communication, 3D imaging, and technical illustration.

Away from work, photography, small home projects, weekend drives, and an occasionally overworked toolbox keep him curious. Through QuintekGroup.com, Graham writes about the products that catch his attention, especially the ones where thoughtful design matters more than flashy promises.