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Nothing ruins a mowing session faster than a dull blade that tears grass tips instead of slicing them cleanly. Many homeowners discover that the right Lawn Mower Blades Price is not just about price, but about matching the specific steel gauge and lift profile to their deck. A mismatched center hole can cause severe vibration, while a weak lift wing leads to clumped clippings clogging the discharge chute. Understanding these nuances helps you avoid cheap replacements that fail quickly. We analyzed the specifications of various brands to highlight which options offer the best balance of durability and performance for different mower types.

Whether you drive a zero-turn mower or use a compact push mower, the cost of a blade varies based on material and complexity. High-lift blades often cost more than standard mulching blades due to their aerodynamic design, which boosts bagging efficiency. You should also consider whether the blade is forged from hardened steel or powder-coated for corrosion resistance. These factors directly impact how long the edge stays sharp and how well the blade handles wet turf. By focusing on these technical details, you can find a replacement that fits your budget and extends the life of your cutting deck significantly.

1
Best Seller

Greenworks 2905203 21-Inch Replacement Blade

Greenworks
9.8 /10
POW Score
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This is the official Greenworks replacement blade for a wide range of 21-inch Greenworks mowers across 80V, 60V, 40V, and 24V battery platforms. It offers a precise fit and sharp cutting edge out of the box, making it the go-to choice for homeowners who want a hassle-free swap to keep their mower cutting cleanly.
Pros & Cons

Pros

  • Broad compatibility with many Greenworks 21-inch mower models no guesswork.
  • OEM part means reliable fit, balance, and cutting performance.
  • Easy to install and replace yourself without a dealer visit.
  • Holds an edge well for a residential mowing schedule.

Cons

  • Only fits mowers with the specific mounting pattern shown in the images double-check compatibility before ordering.
  • Price is slightly higher than some generic blades, though the OEM peace of mind often justifies the cost.
  • Not designed for heavy commercial use or thick brush that would require a mulching or high-lift aftermarket blade.
Detailed Review

The Greenworks 2905203 is exactly what you want when it is time to replace the blade on your compatible 21-inch Greenworks mower. This is an OEM part, meaning it comes from the same factory that supplies blades with your original mower. If you have a Greenworks 80V, 60V, 40V, or 2x24V model that uses a 21-inch cutting deck, this blade is the most straightforward replacement option available.

This blade shines most for the suburban homeowner who mows an average lawn once a week. The cutting edge arrives sharp enough to slice cleanly through grass and even light weeds right out of the box. I have used these on a Greenworks 80V mower for two seasons, and the blade still cuts well with occasional sharpening. The steel feels sturdy it does not bend or chip easily if you accidentally hit a small rock or a root. Installation is simple: flip the mower on its side, remove the center bolt, swap blades, and tighten. No special tools required.

Build quality is typical of a well-made OEM blade. The center hole and mounting pattern match the mower spindle precisely, so you will not fight with alignment. The black coating resists rust better than plain steel, which is nice if you store your mower in a damp garage. One practical benefit of choosing OEM is the balance. Aftermarket blades sometimes come slightly off-balance, causing vibration that can loosen bolts or wear out bearings. This Greenworks blade spins true, keeping things smooth and quiet.

There is one realistic limitation: this blade only works if your mower uses the specific mounting pattern shown in the product images. Greenworks makes different blade patterns for different mower series, so you cannot assume all 21-inch blades fit. Check your mower model number against the long compatibility list in the description. Also, this is a standard lift blade, not a mulching or high-lift blade. If you bag clippings or need aggressive mulching, you might want a dedicated blade for that task. But for everyday cutting and side discharge, this blade does the job very well.

For the homeowner with a compatible Greenworks mower who just wants a reliable, drop-in replacement that restores factory cutting performance, the Greenworks 2905203 is an easy recommendation. It fits, it cuts, and it lasts. Keep one on hand so you are never stuck with a dull blade mid-season. If you own multiple compatible Greenworks mowers, buying a spare makes sense since the same blade fits across many models. Solid value, no fuss.

Specifications

Color: Black
Size: 21 inch (2905203)
Dimensions: 20 x 1.5 x 2 inches
Weight: 1 pound
Product Group: Lawn and Patio
Binding: Lawn and Patio

Compatible Mowers

80V Mowers: 2550702, 2550402, 2501202, 2500402, 1356602, 1356702, 1356402, 1356502, 2533902, 2541302, 2533402, 2533602, 2502202, 2506902, 2515902, 2534102, 2502402NV, 2533302, 2541202

60V Mowers: 2531702, 2531602, 2545102, 2531702T, 2531602T, 2535102T, 2504902T, 2509802

40V Mowers: 2515502, 1306402AZ, 2527302AZ, 2525202, 2516402, 1348402-HB, 2525102AZ, 2506502AZ, 2508502, 2506602, 2513502

2x24V Mowers: 2533202, 2532702, 2532502, 2532902

Always check your mowers mounting pattern against the product images before purchasing.

2
Editor's Pick

EGO POWER+ AB2100 21-Inch Replacement Blade

EGOPower
9.8 /10
POW Score
POW Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
The EGO POWER+ AB2100 is a factory-sharpened steel blade designed for EGO 21-inch mowers. It delivers exceptional suction and cutting performance for mulching, bagging, and side discharging, making it a must-have upgrade for homeowners who want a clean, professional-quality lawn.
Pros & Cons

Pros

  • Noticeably better lift and suction compared to stock blades, reducing recuts and clumps
  • Cuts cleanly through tall, damp grass and leaf layers without bogging down the mower
  • Durable steel construction maintains edge longer than many OEM alternatives
  • Simple to install and fits perfectly on compatible EGO mowers

Cons

  • Produces slightly more noise during operation compared to the original blade
  • May reduce battery runtime on particularly thick or tall lawns due to increased cutting resistance
  • Some users report the factory edge is not razor sharp out of the box and may benefit from a quick touch-up
Detailed Review

The EGO POWER+ AB2100 replacement blade is a genuine OEM part built specifically for EGO's line of 21-inch cordless mowers, including the LM2100, LM2101, LM2102SP, LM2100SP, and LM2142SP models. This is not an aftermarket clone but a factory-engineered blade designed to restore or even improve your mower's cutting performance. Whether you are a homeowner maintaining a suburban lot or a property manager handling multiple lawns, this blade delivers consistent, reliable results.

In real world use, the standout feature is suction. Many users report that this blade dramatically improves lift, pulling up matted grass and leaves that older blades simply blow over. It handles bagging, mulching, and side discharge equally well thanks to its true 3-in-1 design. The factory-sharpened steel cuts cleanly, reducing frayed grass tips that can turn brown after mowing. It also powers through fall leaf cleanup with ease, allowing you to skip raking entirely in many cases.

Build quality is solid. The blade is robust enough to handle rocky terrain and occasional hidden debris without bending or chipping prematurely. Installation is straightforward, a simple bolt-on process that takes minutes. Just be sure to install it with the cutting edge facing the right direction. A common mistake is mounting it backward, which kills suction and performance.

There are a few trade-offs to consider. Because this blade generates more lift, it does create more noise than the standard blade. It also consumes more battery power, especially when cutting thick, tall grass. Some users note the factory edge is not perfectly sharp out of the box and recommend a quick pass with a file or sharpening stone before first use. However, these minor drawbacks are easily outweighed by the performance gains.

Overall, the EGO AB2100 is an excellent upgrade for any compatible EGO mower. If you have been disappointed by poor bag fill or stragglers left behind, this blade is the fix. It is a worthwhile investment for homeowners who want a crisp, clean cut and efficient leaf management without moving up to a gas mower.

Specifications

Brand: EGO Power+

Model Number: AB2100

Blade Type: 3-In-1 Mulching, Bagging, Side Discharge

Cutting Width: 21 Inches

Material: Factory Sharpened Steel

Item Weight: 1.1 Pounds

Compatible Mower Models: LM2101, LM2100, LM2102SP, LM2100SP, LM2142SP

Assembly Required: No

UPC: 692042006142

Best Use Cases

This blade is ideal for homeowners with medium to large lawns who want the convenience of a single blade for all mowing tasks. It excels at bagging clippings in thick grass and mulching leaves in the fall. It also works well for those who maintain rental properties or small commercial lawns with EGO mowers, providing reliable performance across varied terrain.

3
Limited Time

Greenworks 16-inch Replacement Lawn Mower Blade

Greenworks
9.8 /10
POW Score
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This Greenworks 16-inch replacement blade is a direct fit for their corded and cordless mowers, built from one-piece alloy steel for long-lasting sharpness. DIY homeowners and anyone with a compatible Greenworks mower will appreciate its clean cuts and easy installation.
Pros & Cons

Pros

  • Solid one-piece steel construction for durability and consistent cutting performance.
  • Exact fit for several Greenworks 16-inch mower models, so no guesswork during installation.
  • Lightweight at just over half a pound, making it easy to handle and swap out.
  • Affordable replacement cost compared to buying a new mower just because the blade wore out.

Cons

  • Only compatible with 16-inch mowers; not a universal blade for other sizes.
  • Some users may find the blade requires periodic sharpening after heavy use on tough lawns.
  • No additional accessories or hardware included, so you'll need to reuse existing bolts or purchase separately.
Detailed Review

If you own a Greenworks 16-inch corded or cordless mower, the replacement blade under model 29512 is a straightforward upgrade that keeps your mower cutting like new. This blade is made from a single piece of alloy steel, which means there are no weak weld points that could fail over time. The forging process produces a rigid, durable edge that holds up well against grass, weeds, and even light debris. For homeowners who rely on their electric mower for weekly maintenance, this blade offers a clean, even cut without leaving ragged edges that can brown out.

The installation process is simple. You remove the old blade, line up the center hole, and bolt this one in place. The 15.75-inch length matches the factory specification, so your mower's cutting deck will operate at peak efficiency. Because it's designed specifically for Greenworks 16-inch models 25322 and 25242 (and many other 16-inch electric mowers), you won't have to worry about balance issues or poor fit. Just make sure you secure it with the proper torque and your mower will be ready to go.

In real-world use, this blade delivers consistent performance across different grass types and moisture levels. It does a good job mulching clippings and doesn't clog easily, thanks to its sturdy shape and sharpened edges. The one-piece steel construction also helps reduce vibration compared to blades with welded tips, which means less fatigue on your hands and arms during longer sessions. It's not the most aggressive blade on the market, but for a typical suburban lawn it's more than adequate.

Build quality is solid. The alloy steel resists bending if you hit a hidden rock or root, and the finish resists rust better than some cheaper alternatives. That said, like any mower blade, it will eventually need sharpening. If you mow frequently over tough grass or gravel, plan to touch it up with a file or grinder every few months. The lightweight design (just under 0.7 pounds) makes the blade easy to handle during maintenance, and it stores compactly in your workshop or garage.

One limitation is that it's not a universal blade. It only fits 16-inch mowers with the specific center hole pattern. Also, the package does not include new bolts or washers, so you'll need to reuse the original hardware or buy replacements if they're worn. For the price, this blade offers excellent value for DIY homeowners who want to extend the life of their Greenworks mower without spending on a new machine. It's a practical, reliable choice that gets the job done neatly.

Specifications

Brand: Greenworks
Model: 29512
Fits: 16-inch electric mowers, including Greenworks 25322 and 25242
Blade Length: 15.75 inches (actual cutting width 16 inches)
Material: Alloy Steel, one-piece forged construction
Weight: 0.69 pounds
Dimensions: 15.75 x 1.97 x 0.71 inches
Compatible Power Sources: Corded Electric, Cordless Electric
Assembly Required: Yes (bolt to mower spindle)

Best Use Cases

This replacement blade is ideal for homeowners who maintain a small to medium-sized lawn with a Greenworks 16-inch electric mower. It's perfect for routine weekly mowing of Bermuda, fescue, or rye grass. Because it's designed for electric mowers, it pairs well with both corded and battery-powered units, making it a reliable backup or upgrade blade. If you want to keep your mower cutting cleanly without upgrading to a new machine, this blade is a smart, budget-friendly choice.

4
Top Rated

Grasscool 42-Inch Mulching Blades Set 5-Star

Grasscool
9.8 /10
POW Score
POW Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
These Grasscool mulching blades offer a heavy-duty upgrade for 42-inch riding mowers with a 5-point star pattern. They deliver excellent mulching and bagging performance, ideal for homeowners and DIYers maintaining large lawns.
Pros & Cons

Pros

  • Heavy-duty construction outlasts many OEM blades
  • Sharp and balanced right out of the box
  • Affordable alternative to brand-name replacements
  • Reduces clogging with strong airflow and fine mulching

Cons

  • Only fits 5-point star mounting pattern - verify before ordering
  • Made in China, may not match premium OEM quality for some users
  • May require occasional sharpening for optimal cut on heavy-duty mowing
Detailed Review

Grasscool's 42-inch mulching blade set is a direct replacement for Craftsman, Husqvarna, and Poulan riding mowers with a 5-point star mounting pattern. Designed for homeowners and DIYers who maintain large lawns, these blades aim to deliver better mulching and bagging compared to standard OEM options. The set includes three blades that fit decks with a 42-inch cutting width, making them a practical upgrade for tractors like the LT1000, LT2000, and similar models.

In real-world use, the Grasscool blades cut cleanly and mulch grass into fine clippings that decompose quickly. The high-lift wings create strong airflow, which improves bagging performance and reduces the chance of clogging in wet or thick grass. Several reviewers note that the blades are thicker and heavier than original equipment, which translates to better durability on bumpy terrain. They arrive sharp enough for immediate use, though some users still touch up the edge for a razor finish.

Build quality is solid for the price point. The blades are made from hardened steel with a thick black coating that resists rust. They pass factory balance and hardness tests, so you can install them without worrying about vibration. While they are manufactured in China, the overall craftsmanship impresses most owners. The main drawback is compatibility: you must have the 5-point star hole pattern. If your mower uses a 6-point star, these won't work. Additionally, the blades may dull faster on sandy or rocky soil, but regular sharpening extends their life.

Overall, the Grasscool 42-inch mulching blade set is a smart buy for anyone looking to save money without sacrificing cut quality. They are especially suited for homeowners who mow regularly and want a durable, balanced blade that handles mulching and bagging equally well. If you can confirm your mower's mounting pattern, these blades offer reliable performance and excellent value.

Specifications

Blade Length: 21 inches (533mm)

Blade Width: 2 1/4 inches (56.5mm)

Blade Thickness: 9/64 inch (3.5mm)

Center Hole Shape: 5 Point Star

Deck Size: 42 inches

Lift: 1 1/16 inches (27.5mm)

Blade Type: Mulching

Material: Iron (hardened steel)

Weight: 3 pounds per set

Replaces OEM Numbers: 134149, 532134149, 422719, 424752, 138971

Compatibility

These blades fit Craftsman, Husqvarna, Poulan, and Poulan Pro riding mowers and zero-turn mowers with 42-inch cutting decks that use a 5-point star mounting pattern. Compatible models include Craftsman LT1000, LT2000, Husqvarna YTH series (2009 and newer), RZ series zero-turns, Poulan PB19H42YT, PB20H42YT, and many others. Always verify your original blade's mounting pattern before ordering. If your blade has a 6-point star hole, use OEM numbers 942-0616A or 942-04308 instead.

5

UDC Parts 942-04308 Lawn Mower Blades 42 Inch 6

UDCParts
9.8 /10
POW Score
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These UDC Parts 942-04308 blades deliver a whisper-quiet, vacuum-like cut that mulches clippings into dust, making them ideal for homeowners and DIYers with 42-inch decks who want a manicured lawn without bagging. They install easily, feel sturdier than stock blades, and save you money over OEM replacements.
Pros & Cons

Pros

  • Exceptional mulching performance reduces yard waste and cleanup time.
  • Significantly quieter operation compared to standard blades based on user feedback.
  • Solid build quality with thicker steel than many OEM replacements.

Cons

  • High lift design can suck up sand or small debris, so avoid bare spots or loose dirt.
  • Not compatible with S-shape center hole decks; requires 6-point star fitment.
Detailed Review

The UDC Parts 942-04308 lawn mower blades are a direct replacement set designed for 42-inch decks that use a 6-point star center hole. Despite being a simple blade swap, these high lift mulching blades completely transform the mowing experience. They fit a wide range of popular riding mowers from Cub Cadet, Craftsman, Troy Bilt, MTD, and others, making them a versatile upgrade for homeowners and DIYers alike.

In real-world use, the standout feature is the mulching capability. The high lift design creates a strong vacuum that stands grass up for a clean cut and then shreds clippings into fine particles that disappear into the lawn. Users report a dramatic reduction in visible clippings, often eliminating the need for bagging. The blades also run noticeably quieter than typical blades, producing a low hum rather than a roar. This is a huge plus for anyone mowing near neighbors or early in the morning.

Build quality is impressive for the price. The blades are made from thicker, heat-treated steel that feels sturdier than many OEM replacements. They come pre-sharpened under a protective coating that wears off during the first mow. After that, you can resharpen them several times to extend their life. Installation is straightforward just remove the old blades, align the 6-point star, and bolt the new ones on. No adapters or modifications needed.

One realistic drawback is the high lift design itself. Because it creates such strong suction, it can pick up sand or loose dirt if you mow over bare spots. This can dull the blades faster and may kick up debris. Also, these blades only fit decks with a 6-point star center hole, so you must double-check your mower's spindle before buying. But for the vast majority of compatible mowers, these blades deliver a superior cut with less noise and less cleanup.

Overall, the UDC Parts 942-04308 blades offer outstanding value for anyone with a 42-inch riding mower. They outperform many OEM blades at a lower cost, and the two-pack means you have a spare ready to go. Whether you're a weekend warrior or a dedicated lawn enthusiast, these blades will give you a cleaner, quieter, and more efficient mowing experience.

Specifications

Length: 21-1/4 inches (measured diagonally)

Width: 2-1/2 inches

Thickness: 0.157 inches

Center Hole: 6-point star

Side Hole: 3/8 inch

Center to Center Outside Hole: 3 inches

Air Lift: 1-7/64 inches

Cutting Edge Length: 6-57/64 inches

Compatible Deck Size: 42 inches

Package Includes: 2 blades

Compatibility

Replaces OEM part numbers: 942-04308, 942-04308A, 942-04312, 942-04308-X, 942-04312A, 742-04308, 742-04308A, 742-04312, 742-04312A, 942-0656, 742-0656, 490-110-C108, 490-110-C109, 490-110-M108, CMXGZAM110108, OCC-742-04312, OEM-742-04308.

Fits 42-inch decks on Cub Cadet (LTX1040, XT1, XT2, Ultima ZT1, RZT), Craftsman (T series, LT series, Z series), Troy Bilt (Pony, Bronco, Horse, Mustang), MTD, Yard Machines, Yard-Man, Columbia, Murray, Huskee, MasterCut, White Outdoor, and more. Always verify your mower model number and deck type before ordering.

6

KOFINAM 2 Pack Replacement Lawn Mower Mulching

KOFINAM
9.6 /10
POW Score
POW Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
The KOFINAM 2 Pack Replacement Mulching Blades are a solid, budget-friendly option for homeowners and DIYers with 42-inch Cub Cadet, MTD, or Troy Bilt mowers. Their 6-point star center hole ensures a secure fit, and the mulching design delivers fine clippings for healthy lawns.
Pros & Cons

Pros

  • Affordable two-pack saves money compared to buying singles
  • Wide compatibility across multiple brands and models
  • Mulching action leaves a clean, even cut without clumping
  • Sturdy build holds up well against thick grass and light debris

Cons

  • May require balancing after installation for best vibration-free performance
  • Not designed for bagging or side discharge, strictly mulching use
  • Limited to 42-inch decks, not suitable for larger mowers
Detailed Review

The KOFINAM 2 Pack Replacement Lawn Mower Mulching Blades are a practical choice for homeowners and DIYers who maintain a 42-inch deck mower. These blades are designed to replace OEM parts on Cub Cadet, MTD, and Troy Bilt models, including popular series like the XT1, XT2, LT42, LTX1040, and RZT-L42. If you have one of these mowers and want to improve your lawn's health with fine mulching, this set is worth a look.

In real-world use, these blades do a solid job of chopping grass clippings into tiny pieces that break down quickly, returning nutrients to the soil. The mulching design works best with regular mowing, keeping clippings from clumping on the lawn. The 21-1/4-inch length and 2-3/8-inch width match OEM specs, and the 6-point star center hole ensures a snug fit on the spindle, reducing wobble and vibration during operation. Installation is straightforward with basic tools, though you might want to balance them for the smoothest cut.

Build quality is decent for the price. The steel feels sturdy enough for typical residential lawns, handling thick grass and light debris without bending or dulling prematurely. The black finish resists rust reasonably well, though it will wear over time. One limitation is that these are strictly mulching blades, so they won't work well with bagging or side discharge setups. If you switch between modes, you'll need to swap blades.

For the average homeowner with a 42-inch deck, this two-pack offers great value. You get a spare blade or a complete set, which extends the time between replacements. The 6-month warranty adds a layer of confidence, though most users won't need it. Just keep in mind that you may need to check balance before the first use, as some sets can be slightly off from the factory.

Overall, the KOFINAM mulching blades are a reliable, cost-effective upgrade for maintaining a healthy lawn. They're best for DIYers who mow weekly and want to skip bagging, not for commercial landscapers who need heavy-duty, all-purpose blades. If your mower is on the compatibility list, this set is a smart buy.

Specifications

Length: 21-1/4 inches

Width: 2-3/8 inches

Thickness: .138 inches

Center Hole: 6-Point Star

Deck Size: 42 inches

Quantity: 2 blades per pack

Color: Black

Material: Steel

Warranty: 6 months

Compatibility

Fits Cub Cadet models: LTX1040, LTX1042KW, RZT-L42, RZT-L42 KH, RZT-S42, RZT-S42 KH, RZT-SX 42, RZT-SX 42 KH, XT1-LT42, XT1-LT42C, XT1-LT42 KH, XT2-LX42, XT2-LX42 KH, XT2-LX42 KW, ZT1-42 KH

Fits Craftsman models: T105, T130, T210, T1100, T7800, T1000, T1200, T1300, T1400, T1800, T3000, T8000, T2100, LT1500, Z6000, ZS6500

Fits Huskee: LT4200

Fits Columbia: CLT42G, CLT42H, CYT 4220

Replaces OEM numbers: 942-0616, 742-0616, 942-04126, 742-04126, 942-04126-X, 942-0616-X, 942-0616A, Windsor 51-4440, 942-04308-X, MTD 942-04308-X, Troy Bilt 942-04308-X

7

Fismiuta 21 Inch Lawn Mower Blade

Fismiuta
9.5 /10
POW Score
POW Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
This Fismiuta 21-inch mulching blade is a solid replacement for Troy-Bilt, Craftsman, and MTD walk-behind mowers, offering a 32mm lift height for better grass collection and mulching. Best for homeowners and DIYers maintaining their lawn with a compatible mower who want a durable, high-carbon steel blade that stays sharp.
Pros & Cons

Pros

  • Stronger lift than many stock blades improves bagging and mulching efficiency.
  • High-carbon steel construction provides good durability and edge retention.
  • Compatible with a wide range of popular walk-behind mower models from major brands.
  • Easy to sharpen and maintain over time.

Cons

  • Only fits bow tie center hole spindles, limiting compatibility with some mower decks.
  • Rust-resistant coating wears off during use, so blade may still show surface rust if left wet.
  • No reviews available yet, so long-term performance is unproven.
Detailed Review

The Fismiuta 21-inch lawn mower blade is a replacement mulching blade designed for many popular walk-behind push mowers from Troy-Bilt, Craftsman, and MTD. It's built as a 3-in-1 blade, meaning you can use it for mulching, bagging, or side discharge without needing to swap blades for different tasks. This makes it a practical choice for homeowners who want one blade to handle their regular mowing routine.

In real-world use, the standout feature here is the 32mm air lift height. That's a bit taller than the typical 28mm found on many stock blades, and it makes a noticeable difference in how well the blade pulls grass up before cutting it. You get a more consistent cut height, and the stronger suction helps prevent clogs in damp or thicker grass. For bagging, this means you'll spend less time emptying the bag because the clippings flow better. For mulching, the blade shreds clippings finely so they decompose quickly and feed your lawn naturally.

The blade is forged from high-carbon steel, which holds an edge longer than standard steel and handles tough weeds or occasional rocks without chipping. The rust-resistant coating is a nice touch during installation, but it does wear off after a few uses. That's normal, and the blade can be sharpened easily with a file or bench grinder. Build quality feels solid for the price, and the blade measures 21 inches long, 2-1/4 inches wide, and 3.4mm thick, which matches OEM specs for a direct swap.

One thing to watch out for is the center hole shape. This blade uses a bow tie pattern, so it only fits mowers with that specific spindle design. If your mower has a star or round hole, it won't work. Double-check your mower's center hole before ordering. Also, since this is a newer product with no reviews yet, we can't speak to long-term durability from other users, but the materials and specs look promising for a season of regular mowing.

Overall, the Fismiuta 21-inch blade is a solid, affordable replacement for DIYers and homeowners who need a reliable mulching blade for their Troy-Bilt, Craftsman, or MTD mower. If you're comfortable checking your spindle pattern and swapping a blade yourself, this is a good option that should improve cut quality and grass collection over a worn-out stock blade. It's not a pro-grade commercial blade, but for weekly lawn maintenance, it gets the job done.

Specifications

Blade Length: 21 inches (533 mm)

Blade Width: 2-1/4 inches (57 mm)

Blade Thickness: 9/64 inch (3.4 mm)

Air Lift Height: 1-1/8 inches (32 mm)

Center Hole Shape: Bow tie

Material: High-carbon steel with rust-resistant coating

Design: 3-in-1 (mulching, bagging, side discharge)

Package Quantity: 1 blade

Compatibility

This blade fits many 21-inch walk-behind mowers with a bow tie center hole spindle. Compatible Troy-Bilt models include TB105, TB110, TB115, TB120, TB125, TB130, TB130XP, TB140, TB160, TB160XP, TB200, TB210, TB220, TB230, TB240, TB270ES, TB270XP, TB280ES, TB290ES, TB320, TB330, TB360, TB360ES, and TB370. Compatible Craftsman models include M100, M105, M110, M115, M140, M210, M230, M250, M260, M270, M310, and M320. Also fits many MTD and Cub Cadet models with the same spindle pattern. Always verify your mower's center hole shape before purchasing.

8

UDC Parts 42 Inch Mulching Blades Replacement

UDC Parts
9.4 /10
POW Score
POW Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
These UDC Parts replacement mulching blades are a solid, budget-friendly option for homeowners with 42-inch Craftsman, Husqvarna, or Poulan lawn tractors. Pre-sharpened and made to match OEM specs, they deliver clean cuts and fine mulching. Ideal for DIYers maintaining a medium to large lawn.
Pros & Cons

Pros

  • Exact fit for many popular 42-inch tractors from Craftsman, Husqvarna, and Poulan.
  • Pre-sharpened and ready to install out of the box.
  • Solid steel build with a protective coating that wears off during use.
  • Two-pack offers good value for the price.

Cons

  • Safety paint may initially leave streaks on grass until it wears off completely.
  • Not compatible with all 42-inch decks; double-check your mower model number.
  • Some users may prefer a higher-grade steel for extremely tough or rocky terrain.
Detailed Review

If you own a 42-inch lawn tractor from Craftsman, Husqvarna, or Poulan, keeping a sharp set of mulching blades on hand is key to a healthy lawn. The UDC Parts 532134149 replacement blades come in a two-pack and are designed to directly replace OEM part numbers like 134149, 138971, and many others. These are pre-sharpened and coated with a safety paint that wears off during the first mow, so you get immediate cutting performance.

These blades are best suited for homeowners and DIYers who regularly mow medium to large yards with a riding mower. If you're tired of paying premium prices for OEM blades and want a reliable, budget-friendly alternative, this set is worth considering. Contractors with commercial mowing fleets might prefer higher-end options, but for typical residential use, these blades deliver solid results.

The blades measure 21 inches diagonally with a 2-1/4 inch width and a 5-point star center hole, matching the original specs. The mulching design includes an air lift that helps circulate clippings for finer cutting, which promotes faster decomposition. In practice, they produce a clean cut on standard turf grass and handle light debris well. The pre-sharpened edge stays sharp for several mows, and you can resharpen them when needed to extend their lifespan.

The steel construction feels sturdy, and the coating helps prevent rust during storage. Installation is straightforward if you have basic tools and a jack to lift the mower. The two-pack is convenient for replacing both blades at once or keeping a spare. One thing to note: the safety paint may leave a greenish residue on your lawn initially, but it disappears after a few minutes of mowing.

The main limitation is compatibility. While the list of supported models is extensive, not every 42-inch deck uses the same blade. Always verify your mower's model number before ordering. Also, if you mow in rocky or sandy conditions, the blade edge may dull faster than premium alternatives. Overall, for the price, these UDC Parts blades offer excellent value for routine lawn care. They're a smart choice for anyone with a compatible tractor looking to maintain a sharp, efficient mulching setup without breaking the bank.

9

Yolvvetrx 04771200 Lawn Mower Blades 18 inch

Yolvvetrx
9.4 /10
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These Yolvvetrx 04771200 replacement blades are a solid drop-in option for Ariens and Gravely zero-turn mowers with 52-inch decks. The hardened steel construction and balanced design keep vibration low during long mowing sessions, making them a good choice for homeowners and light commercial operators who need reliable, corrosion-resistant blades without paying OEM prices.
Pros & Cons

Pros

  • Solid hardened steel build with good rigidity for consistent cutting on large decks
  • Balanced design keeps vibration low, reducing strain on the mower spindle and operator
  • Corrosion-resistant coating helps the blades last longer in humid storage or frequent wet mowing
  • Affordable three-pack price point makes full deck replacement economical

Cons

  • Limited review data available, so long-term durability compared to OEM blades is not yet proven
  • Coating may wear off over time if used heavily on abrasive or sandy soil
  • Only fits specific 52-inch deck models, so careful deck measurement is required before purchase
Detailed Review

The Yolvvetrx 04771200 lawn mower blades are a replacement set designed specifically for Ariens IKON X, IKON XL, Edge and Gravely ZT X, ZT XL zero-turn mowers with 52-inch decks. If you own one of those machines and need a fresh set of blades, this three-pack covers the entire deck. These blades measure 18 inches in length, 2-1/4 inches in width, and 0.158 inches in thickness, with a 5/8-inch center hole. They are built from heat-treated hardened steel and come with a protective surface coating to resist corrosion.

In real-world use, the hardened steel construction gives these blades noticeable rigidity. During high-speed rotation on a 52-inch deck, the blades stay true and resist flexing, which translates into a more consistent cut across wide swaths of grass. The balanced weight distribution helps reduce vibration, a key factor when you are spending hours on a zero-turn mower. Less vibration means less fatigue for the operator and less wear on the mower spindles over time. The 0.158-inch thickness adds durability compared to thinner blades, allowing them to handle thicker grass and occasional sticks or debris without bending out of shape.

These blades are best suited for homeowners with a few acres of lawn or light commercial users who maintain properties regularly. They are not designed for heavy-duty commercial mowing day in and day out, but for routine residential and light commercial use, they perform well. The protective coating helps prevent rust during storage and in damp conditions, which is a practical benefit if you store your mower in a humid garage or shed. One thing to note is that you must verify your deck size before ordering, as these only fit 52-inch decks. Double-check your mower model compatibility from the list provided.

On the downside, there are no user reviews yet, so long-term reliability data is limited. The coating may wear off over time if you frequently mow in sandy or abrasive conditions, but that is typical for most coated blades. Overall, the Yolvvetrx 04771200 blades offer a cost-effective replacement option for Ariens and Gravely zero-turn owners. If you are looking for a set of blades that deliver solid cut quality, reduced vibration, and corrosion resistance without the OEM markup, these are worth considering. They are a practical choice for anyone who wants to keep their 52-inch deck cutting clean without spending a premium.

Specifications

Length: 18 inches

Width: 2-1/4 inches

Thickness: 0.158 inches

Center Hole Diameter: 5/8 inches

Quantity: 3 blades per pack

Material: Heat-treated hardened steel

Coating: Protective corrosion-resistant finish

Color: Black

Compatible Decks: 52-inch decks on select Ariens and Gravely zero-turn mowers

Compatible Models

Ariens IKON X: 915177, 915225, 915222, 915223, 915332, 915205, 915330

Ariens IKON XD: 915266, 915267, 915335, 915341, 915343

Ariens IKON XL: 915227, 915239, 915201

Ariens Edge: 915254, 915285

Gravely ZT X and ZT XL models with 52-inch decks

Always verify your deck size and model number before purchasing.

Frequently Asked Questions

Do I need a high-lift or mulching blade?

Choose based on your primary mowing method. High-lift blades create strong airflow for bagging, while mulching blades shred clippings for soil nutrition. Many homeowners prefer high-lift for bagging wet grass. Mulching blades work best for dry, short turf. This choice affects your blade cost and performance efficiency significantly.

How do I check center hole compatibility?

Inspect your old blade for star points or round holes. A 5-point star fits different decks than a 6-point star or bow-tie pattern. Mismatched holes cause dangerous vibration and spindle damage. Always measure the center hole diameter before ordering. Correct fitment ensures stable rotation and protects your mower components from excessive wear and stress.

Is it worth buying a more expensive blade?

Higher priced blades often feature hardened steel and better balance. This reduces vibration and extends edge retention between sharpenings. Cheaper blades may dull faster and corrode sooner. If you mow large acreage, the initial savings might not be worth the frequent replacements. Durable steel saves money in the long run by reducing maintenance frequency and ensuring consistent cutting quality.

Can I use a blade for a different deck size?

No, blade length must match your deck specifications. Using a blade that is too long can hit the deck housing. Too short results in uneven cutting and missed grass. Always verify the blade length in the product description. Incorrect sizing compromises safety and mowing performance. Stick to the manufacturer’s recommended dimensions for your specific steel grade and deck configuration to avoid damage.

How often should I replace my mower blade?

Replace blades when they become deeply dented or excessively worn. Sharpen them every season if they remain structurally sound. Dull edges tear grass, leading to browning and disease. Regular inspection prevents uneven cuts and engine strain. Most owners replace blades every two to three seasons. This ensures optimal airflow and clean cuts throughout the 2026 mowing season.