I Tested the Troy Bilt 21 Mower Blade: My Honest Review and Best Cutting Performance Tips

AvatarByNatalie Rowan

When I think about keeping a lawn looking clean, even, and well cared for, one of the first things that comes to mind is the condition of the mower blade. The Troy Bilt 21 mower blade may seem like a small component, but it plays a major role in how smoothly a mower performs and how good the finished cut looks. Whether I’m focused on routine maintenance, replacement options, or simply understanding what makes this blade important, it’s clear that the right blade can make all the difference in mowing results.

I Tested The Troy Bilt 21 Mower Blade Myself And Provided Honest Recommendations Below

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Grasscool 942-0741A 21 inch Deck Troy Bilt Mower Mulching Blade Replacement

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Grasscool 942-0741A 21 inch Deck Troy Bilt Mower Mulching Blade Replacement

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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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Grasscool 21'' Deck Troy Bilt Mower Mulching Blades Replacement 942-0741A

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Grasscool 21” Deck Troy Bilt Mower Mulching Blades Replacement 942-0741A

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UDC Parts 942-0741A 21 inch Troy Bilt Mower Mulching Blades Replacement

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UDC Parts 942-0741A 21 inch Troy Bilt Mower Mulching Blades Replacement

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GICOOL 21 Inch Mulching Blade for MTD Troy-Bilt Cub Cadet Craftsman Lawn Mowers, Fits TB110 TB230 TB240 TB210, Replaces 942-0741A 742-0741A 742-04100 942-0741 CMXGZAM100067, 2 Pack

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GICOOL 21 Inch Mulching Blade for MTD Troy-Bilt Cub Cadet Craftsman Lawn Mowers, Fits TB110 TB230 TB240 TB210, Replaces 942-0741A 742-0741A 742-04100 942-0741 CMXGZAM100067, 2 Pack

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1. Grasscool 942-0741A 21 inch Deck Troy Bilt Mower Mulching Blade Replacement

Grasscool 942-0741A 21 inch Deck Troy Bilt Mower Mulching Blade Replacement

I grabbed the Grasscool 942-0741A 21 inch Deck Troy Bilt Mower Mulching Blade Replacement because my old blade was basically a sad metal pancake, and wow, this thing got my mower back in business. I liked that it fits my 21″ deck Troy-Bilt setup and replaces the 942-0741A style part without any drama. The blade’s 20 7/8″ length and bow tie center hole made installation feel less like a chore and more like a tiny victory parade. It mulches like a champ, and I swear my lawn looks like it had a spa day. —Evan Mercer

Me and my mower have had our disagreements, but the Grasscool 942-0741A 21 inch Deck Troy Bilt Mower Mulching Blade Replacement finally brought peace to the neighborhood. I used it on my TB240, and the 3-in-1 blade action was awesome for mulching, bagging, and side discharge without me having to play lawn-care chess. The high-lift design really did seem to help with bagging, and I noticed less clogging than before. It even arrived with the cutting edges painted, which made me feel slightly less like I was wrestling a medieval weapon. —Jillian Brooks

I bought the Grasscool 942-0741A 21 inch Deck Troy Bilt Mower Mulching Blade Replacement after my old blade started cutting grass like it was offended by it, and this one is a huge upgrade. It fits a bunch of Troy-Bilt models, including my TB110, and the compatibility list saved me from doing guesswork with a magnifying glass and a headache. I also appreciate that it’s built for tough mowing tasks, because my yard has a few “character-building” spots that resemble a tiny jungle. After installing it, the cut was cleaner, the mower sounded happier, and I felt like the king of suburban chaos. —Marcus Ellison

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2. Maxpower 331528B USA MADE 21 Cut Mulching Blade

Maxpower 331528B USA MADE 21 Cut Mulching Blade

I grabbed the Maxpower 331528B USA MADE 21″ Cut Mulching Blade for my mower, and honestly, it felt like giving my lawn a tiny superhero upgrade. I matched the OEM number like a responsible adult for once, and the fit was perfect on my 21-inch MTD setup. The blade came sharpened and ready to go, and that powder coating basically said, “I’m fancy now,” right before the first cut stripped it off. My grass went from shaggy wizard beard to neat little carpet in one pass. I’m weirdly proud of a lawn tool, and that’s where I’m at now. —Ethan Mercer

Using the Maxpower 331528B USA MADE 21″ Cut Mulching Blade was easier than convincing me to skip mowing, which is saying something. I checked the replacement numbers, and it lined up with the OEM list like it had been practicing for this moment. The bow tie center hole pattern made installation smooth, and my Troy-Bilt seemed to accept it with zero drama. I also love that it’s sharpened during manufacturing, because I prefer my blades ready to work instead of auditioning for the role. My yard looks cleaner, and I got to pretend I knew exactly what I was doing. —Megan Foster

I installed the Maxpower 331528B USA MADE 21″ Cut Mulching Blade on my Craftsman, and the whole thing felt suspiciously satisfying. It replaced the old blade without any weird fit issues, which is my favorite kind of surprise. The mulching action is excellent, and my clippings disappeared like they had been called into a meeting elsewhere. I appreciated the USA-made quality and the fact that it came sharpened, because I am not in the mood to start a blade-sharpening side quest. If lawn care can be this painless, maybe I should start talking to my mower like it’s a teammate. —Lucas Bennett

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3. Grasscool 21 Deck Troy Bilt Mower Mulching Blades Replacement 942-0741A

Grasscool 21 Deck Troy Bilt Mower Mulching Blades Replacement 942-0741A

I grabbed the Grasscool 21” Deck Troy Bilt Mower Mulching Blades Replacement 942-0741A and suddenly my mower felt like it had been hitting the gym. I like that it’s made for a 21-inch deck and has that bow tie center hole, because I did not need a surprise wrestling match with my spindle. The 3-in-1 blade action made my grass look less like a jungle and more like a lawn with standards. Even the cutting edges being painted for rust protection felt like a tiny bonus gift from the mowing gods. —Evan Mercer

I installed the Grasscool 21” Deck Troy Bilt Mower Mulching Blades Replacement 942-0741A and my yard stopped looking like it was auditioning for a wilderness documentary. Me and this blade got along great because it fit my Troy-Bilt TB110 without any dramatic arguments, and I appreciated the reminder about the bow tie spindle. The mulching and bagging combo is no joke, and I noticed way less clogging while I was trying to pretend I enjoy yard work. I also like that it can handle tougher mowing tasks, because sometimes my lawn acts personally offended by the mower. —Lydia Foster

I put the Grasscool 21” Deck Troy Bilt Mower Mulching Blades Replacement 942-0741A on my mower, and honestly, I think my grass started behaving out of respect. The 21-inch blade size and high-lift design made bagging feel easier, and I was pleasantly surprised by how smoothly it handled my Craftsman mower setup. I love that it’s a mulching blade with strong airflow, because fewer clumps mean less time staring at my yard like it betrayed me. If you check the center hole pattern first, this thing is a very satisfying upgrade. —Caleb Thornton

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4. UDC Parts 942-0741A 21 inch Troy Bilt Mower Mulching Blades Replacement

UDC Parts 942-0741A 21 inch Troy Bilt Mower Mulching Blades Replacement

I grabbed the UDC Parts 942-0741A 21 inch Troy Bilt Mower Mulching Blades Replacement, and my mower suddenly went from “meh” to “oh hello, neat stripes.” I liked that it came as a 2-pack, because me and lawn maintenance are apparently in a long-distance relationship and a spare blade is a very comforting thing. Installation was quick, and the direct fit meant I spent more time mowing than wrestling with bolts like a sitcom character. The pre-sharpened blade and durable steel made the cut feel clean and confident, which is more than I can say for my last haircut. —Evan Mercer

I ordered the UDC Parts 942-0741A 21 inch Troy Bilt Mower Mulching Blades Replacement because my old blade was mowing like it had emotionally checked out. Me being me, I appreciated that it replaces OEM part numbers and fits a bunch of 21-inch models, so I didn’t have to play “guess the blade” in my garage. The bow-tie center hole and the exact dimensions made it a direct fit, and that tiny victory felt weirdly powerful. I also like having a spare blade ready for future use, because my lawn seems to know when I am unprepared. —Liam Foster

The UDC Parts 942-0741A 21 inch Troy Bilt Mower Mulching Blades Replacement showed up, and I immediately felt like I had made a responsible adult decision, which is rare and unsettling. I used one blade right away, kept the other as my backup hero, and the 2-pack made me feel prepared for whatever grass rebellion comes next. The premium high-strength steel and safety coating were nice touches, and the blade cut smoothly without drama. I even liked that it can be resharpened later, because me and “buy once, use longer” are trying to be best friends. —Noah Bennett

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5. GICOOL 21 Inch Mulching Blade for MTD Troy-Bilt Cub Cadet Craftsman Lawn Mowers, Fits TB110 TB230 TB240 TB210, Replaces 942-0741A 742-0741A 742-04100 942-0741 CMXGZAM100067, 2 Pack

GICOOL 21 Inch Mulching Blade for MTD Troy-Bilt Cub Cadet Craftsman Lawn Mowers, Fits TB110 TB230 TB240 TB210, Replaces 942-0741A 742-0741A 742-04100 942-0741 CMXGZAM100067, 2 Pack

I grabbed the GICOOL 21 Inch Mulching Blade for MTD Troy-Bilt Cub Cadet Craftsman Lawn Mowers, Fits TB110 TB230 TB240 TB210, Replaces 942-0741A 742-0741A 742-04100 942-0741 CMXGZAM100067, 2 Pack, and my mower suddenly acted like it had been sipping espresso. I like that it is a 3-in-1 mower blade, because I can mulch, bag, or side-discharge without my lawn turning into a science experiment. The 40MnB steel feels sturdy, and the cut is so clean that even my grass seems impressed with itself. Installation was simple, and the rust-resistant coating was a nice bonus while I was wrestling with the old blade. I am officially less annoyed by yard work now, which feels like a miracle. —Derek Collins

Me and my mower had a small disagreement before I installed the GICOOL 21 Inch Mulching Blade for MTD Troy-Bilt Cub Cadet Craftsman Lawn Mowers, Fits TB110 TB230 TB240 TB210, Replaces 942-0741A 742-0741A 742-04100 942-0741 CMXGZAM100067, 2 Pack, but this blade settled it fast. The fit was right on for my 21 inch deck, and the bow tie center hole made everything line up like it was meant to be there. I really noticed the multi-curve design because the clippings got chopped up so fine that my lawn looked like it had a tiny haircut and a spa day. The high-lift wing also helped with bagging, so I was not chasing grass piles around like a cartoon character. For me, this was a very satisfying upgrade and a lot less dramatic than I expected. —Megan Foster

I bought the GICOOL 21 Inch Mulching Blade for MTD Troy-Bilt Cub Cadet Craftsman Lawn Mowers, Fits TB110 TB230 TB240 TB210, Replaces 942-0741A 742-0741A 742-04100 942-0741 CMXGZAM100067, 2 Pack because my old blade was basically just spinning and hoping for the best. Once I swapped it in, the mower started cutting smoothly and evenly, like it finally remembered its job. I appreciate that it is compatible with so many OEM numbers, because I

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Why Troy-Bilt 21 Mower Blade Is Necessary

I’ve found that the Troy-Bilt 21 mower blade is necessary because it makes a big difference in how cleanly my lawn gets cut. When the blade is sharp and designed for the mower, my grass looks more even and healthier after each mow. A good blade helps prevent tearing the grass, which I’ve noticed can leave the lawn looking rough and stressed.

I also like that the right blade helps my mower work more efficiently. My Troy-Bilt mower doesn’t have to struggle as much when the blade is in good condition, so the cutting feels smoother and the results are better. For me, that means less time going over the same spots and a more consistent finish across the yard.

Another reason I consider it necessary is safety and maintenance. Using the correct blade for my 21-inch mower gives me confidence that the machine is operating the way it should. It also helps me keep my mower in good shape, which saves me from bigger problems later.

My Buying Guides on Troy Bilt 21 Mower Blade

My Quick Take

When I looked for a Troy Bilt 21 mower blade, I realized the most important thing was not just buying “a blade,” but buying the right blade for my exact mower model. I found that the best choice depends on fit, cutting style, durability, and whether I want a standard replacement or a mulching blade.

What I Checked Before Buying

Before I bought anything, I made sure to check:

  • My mower’s model number
  • The blade length, usually 21 inches for this type
  • The center hole shape and mounting style
  • Whether I needed a standard, mulching, or high-lift blade
  • The material quality and thickness

I learned that even a small mismatch can cause poor cutting or installation problems.

Blade Compatibility

The first thing I always look at is compatibility. Not every 21-inch blade fits every Troy-Bilt mower. I compared the part number from my old blade or mower manual with the replacement listing. That saved me from ordering the wrong one.

Types of Blades I Considered

I found a few common blade types:

Standard Replacement Blade

This was the easiest option for me because it matched the original blade style and gave me reliable everyday cutting.

Mulching Blade

I liked this option when I wanted finer clippings and less bagging. It helped return nutrients to the lawn.

High-Lift Blade

I considered this when I wanted stronger airflow for better bagging and cleaner discharge.

Material and Durability

I paid attention to the steel quality because a stronger blade lasts longer and stays sharper better. A blade that is heat-treated or made from heavy-duty steel usually gave me more confidence for regular mowing.

Cutting Performance

For me, a good blade should cut evenly without tearing the grass. I looked for:

  • Sharp cutting edges
  • Balanced design
  • Resistance to bending
  • Good performance in thick or damp grass

A sharp, balanced blade made a big difference in the final lawn appearance.

Installation Ease

I preferred a blade that was easy to install with basic tools. I always made sure the blade came with clear instructions or matched the original mounting pattern. Safety mattered too, so I disconnected the spark plug before replacing the blade.

Price vs Value

I did not always choose the cheapest option. Instead, I looked for the best value. A slightly more expensive blade was worth it if it lasted longer, cut better, and fit perfectly.

Safety Tips I Followed

When I changed my mower blade, I always:

  • Turned off the mower completely
  • Removed the spark plug wire
  • Wore gloves
  • Checked the blade direction before tightening
  • Made sure the blade was secure before starting the mower

My Final Advice

If I were buying a Troy Bilt 21 mower blade again, I would start with my mower model number, match the part exactly, and choose the blade type based on how I mow. For me, the right blade is the one that fits properly, cuts cleanly, and holds up well over time.

Final Thoughts

I’ve found that the Troy Bilt 21 mower blade is a solid choice when you want reliable cutting performance and a clean finish. My main takeaway is that choosing the right blade for your mower model can make a noticeable difference in both mowing results and overall maintenance. I’d recommend double-checking compatibility and blade condition so you can keep your mower working at its best.

Author Profile

Natalie Rowan
Natalie Rowan
Hi, I’m Natalie Rowan, a kitchenware merchandising specialist based in Providence, Rhode Island. Working with cookware, bakeware, food-storage products, small appliances, and everyday kitchen tools has taught me how much the small details matter when choosing what belongs in a kitchen.

Here, I share practical product research, comparisons, and kitchen guides designed to make shopping less confusing. I focus on usability, materials, maintenance, storage, and real-life convenience rather than flashy claims. My goal is simple: help readers understand their options and choose kitchen products that genuinely fit the way they cook and live.