Nothing ruins a fresh cut faster than a dull or unbalanced blade. Shredded grass tips and brown dieback often signal that your current blade is failing. You need a replacement that matches your specific deck geometry and cutting style. Finding the right good lawn mower blades means checking the center hole shape, steel thickness, and lift profile carefully. We analyzed the specifications of these top options to help you avoid common fitment errors and performance issues.
Whether you own a battery-electric mower or a gas-powered riding tractor, the right blade changes everything. A proper mulching blade keeps clippings fine, while a high-lift blade boosts bagging suction. You also need to consider the material, as hardened steel resists wear in sandy soils better than standard carbon steel. This guide breaks down the key differences between the listed products. You can also check our cost breakdown for mower blades to understand value before you buy.
Pros
- Extremely easy to use with any corded or cordless drill
- Consistent sharpening angle for a balanced, sharp edge
- Good value with 5 stones in one pack
- Works on a variety of blade types beyond just mowers
Cons
- Not ideal for heavy-duty or thick commercial blades; may wear out quickly
- Some users report stones spinning on the shaft or breaking under heavy pressure
- Best results require a corded drill for consistent speed and torque
The cenoz Crafts Man Lawn Mower Blade Sharpener is a straightforward accessory that turns your power drill into a handy blade sharpening tool. This 5-pack of corundum sharpening stones is designed for DIY homeowners, lawn care enthusiasts, and light-duty contractors who want to keep their mower blades sharp without investing in a dedicated bench grinder or sending blades out for sharpening.
In real-world use, this sharpener delivers a consistent edge on straight lawn mower blades, especially on push mowers and riding mowers with standard blades. The pre-set angle takes the guesswork out of maintaining the correct bevel. Users who follow the instructions and use a corded drill for steady speed report excellent results, with blades cutting cleanly through grass after just a few passes. The corundum material holds up well at typical drill speeds, though some users have experienced stones spinning on the shaft or cracking under heavy pressure, particularly on thicker commercial blades.
Build quality is acceptable for the price point. The stones are light and compact, and the pack of 5 gives you plenty of backups. Installation takes about 10 seconds just chuck it into your drill and you are ready to go. However, the sharpener works best on blades with a relatively straight cutting edge. Curved blades on some push mowers can be more challenging to sharpen evenly, as noted in a few reviews. For heavy-duty blades from commercial zero-turn mowers, these stones may wear out quickly or fail to achieve a sharp edge.
Overall, this is a practical, budget-friendly tool for routine lawn mower maintenance. If you are a weekend warrior with a standard push mower or a small lawn tractor, this sharpener will save you time and money. For professionals with demanding schedules and thick blades, a bench grinder or professional sharpening service remains a better investment. But for most homeowners, the cenoz 5-pack offers solid value and decent performance.
Material: Corundum
Size per stone: 50 x 47 mm (1.97 x 1.85 inches)
Package includes: 5 sharpeners
Compatibility: Fits most power drills (corded recommended for best results)
Ideal for: Lawn mower blades, tractor blades, rototiller tines, sickle bars, drill bits
Color: Blue
Homeowners: Keep your push mower or riding mower blades sharp for a clean cut and healthier lawn.
DIYers: Sharpen blades on your tiller, sickle bar mower, or even old drill bits.
Light commercial: For small lawn care businesses with a few mowers, this pack provides quick touch-ups between professional sharpenings.
Workshop: Use as a quick backup when you need a sharp edge and your bench grinder is tied up.
Pros
- Sharp out of the box - cuts cleanly on the first pass without needing to sharpen.
- Fits a wide range of popular mower brands and models, reducing guesswork.
- Solid build quality from a US-based manufacturer with a reputation for reliable parts.
- Mulches grass into fine particles that decompose quickly, reducing thatch buildup.
- Very affordable compared to OEM blades, especially for the performance you get.
Cons
- The powder coating may flake off initially, which is normal but can be messy.
- Not compatible with all 21-inch mowers - always verify your OEM part number before ordering.
- Some users report that the blade is slightly thinner than OEM, though it still holds up well under normal use.
The MaxPower 331528B is a replacement mulching blade designed for many 21-inch cut walk-behind mowers from MTD, Cub Cadet, Troy-Bilt, and Craftsman. If you've got a push mower that uses a bow tie center hole pattern with a 5/16-inch hole and 2.5-inch spacing, this blade is likely a direct drop-in. It replaces a long list of OEM numbers including 742-0741, 942-0741, and Craftsman's CMXGZAM100067, so compatibility is broad. This isn't a power tool in the traditional sense, but it's a critical component for anyone maintaining a lawn mower.
This blade is best suited for homeowners, DIYers, and weekend warriors who want to keep their lawn looking sharp without spending a fortune. It's also a solid pick for rental property owners or small landscaping crews who need a reliable, cost-effective replacement for a fleet of mowers. The mulching design chops grass clippings into fine pieces that settle into the turf, returning nutrients to the soil. That means less bagging and a healthier lawn overall.
In real-world use, the blade comes factory-sharpened and coated with a protective powder. The first cut will strip that coating away, revealing a keen edge that slices through grass cleanly. Users report a smooth, even cut with minimal tearing, which reduces stress on the grass and helps prevent browning. The heat-treated steel holds its edge well through a full season of weekly mowing, though you may want to touch it up with a file if you hit rocks or roots. Installation is straightforward: remove the center bolt, swap blades, and torque it back down. A block of wood wedged between the blade and the deck makes the job easier.
Build quality is solid for an aftermarket blade. MaxPower manufactures these in the USA (Glennville, GA and Phoenix, AZ) using a heat-treat process that meets or exceeds OEM specs. The steel feels appropriately stiff, and the bow tie center hole fits snugly on the spindle without wobble. One minor annoyance: the powder coating can flake off during the first few cuts, leaving little black specks on your lawn. That's cosmetic and harmless, but worth noting. Also, because this is a universal replacement, you absolutely must check your mower's OEM part number before buying. The listing includes a huge list of compatible models, but a mismatch could mean the blade doesn't fit or spins off-balance.
Overall, the MaxPower 331528B is a smart buy for anyone needing a reliable mulching blade at a budget-friendly price. It cuts well, fits a wide range of mowers, and is built to last. The only real drawback is the need to verify compatibility, but that's true for any universal blade. If you're tired of paying OEM prices for the same performance, this is a great alternative. Just double-check your part number, and you'll be back to mowing in no time.
Blade Length: 21 inches
Blade Width: 2.25 inches
Center Hole: Bow tie pattern, 5/16-inch diameter outer holes, 2.5-inch center-to-center spacing
Weight: 1.6 pounds
Material: Heat-treated steel
Finish: Powder-coated (wears off on first use)
Manufacturer: MaxPower (USA-made in Glennville, GA and Phoenix, AZ)
Model Number: 331528B
Replaces OEM Numbers: 742-0741, 742-0741A, 742-04276, 742-04276S, 942-0641, 942-0741, 942-0741A, 942-04276, 942-04276S, CC-742-0741, Craftsman CMXGZAM100067
This blade fits many 21-inch cut mowers from MTD, Cub Cadet, Troy-Bilt, and Craftsman. Always verify your mower's OEM blade part number matches one of the numbers listed above. Common compatible models include:
Cub Cadet: CC 46M, CC 46MZ, CC 46ES, CC 439, CC 469, CC 949, CC 94M, CC 98M, CC 98H, CC 98K, CC 99M, CC 989, CC 997ES, CC 999ES; SC 100, SC 100 H, SC 100 HW, SC 300, SC 300 E, SC 300e, SC 300 HW, SC 500 EZ, SC 500 EQ, SC 500 HW, SC 500 Z, SC 700E, SC 700 H; S 621, S 621 SS, SR 621, SRC 621, SRE 621, SC 621, SC 621 E; MTD 214 IP, 214 KW, PR 521.
Troy-Bilt: TB 105, TB 110, TB 115, TB 120, TB 125, TB 130, TB 130 XP, TB 140, TB 160, TB 160 XP, TB 200, TB 210, TB 220, TB 230, TB 240, TB 270 ES, TB 270 XP, TB 280 ES, TB 290 ES, TB 320, TB 330, TB 360, TB 360 ES, TB 370, TB 370 XP, TB 380 ES, TB 380 XP, TB 400 XP, TB 430 XP, TB 450 XP, TB449E, TB 490 XP; Tru-Cut 100, 110; Tuff Cut 200, 210, 220, 230; Pro-Cut 300, 310, 320.
Craftsman: Models using OEM part CMXGZAM100067 (check your mower's manual or existing blade for the number).
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.
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.
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
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.
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
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.
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
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.
Pros
- Produces exceptionally fine mulch that blends into the lawn
- All-steel build feels durable and holds up to regular use
- Simple installation with standard socket or wrench
- Genuine EGO part guarantees compatibility and performance
Cons
- Does not include mounting bolts or nuts, so you need to reuse the original hardware or buy new ones separately
- Some users report the blades dull faster than traditional gas mower blades, especially when hitting sticks or rocks
- Only compatible with EGO Select Cut 21-inch mowers, not with other brands or older EGO models
The EGO POWER+ 21-inch Mulching Blades (AB2101D) are a direct replacement for the lower blade in EGO's Select Cut multi-blade system. Designed specifically for 56-Volt cordless mowers like the LM2133, LM2130, LM2135SP, LM2130SP, LM2156SP, and LM2150SP, this two-pack gives you a spare ready to go. The upper blade is also included in the set, so you get the complete pair needed for the dual-blade setup.
For homeowners who take pride in their lawn, these blades are a solid upgrade. The mulching performance is top-notch, turning grass clippings and even dry leaves into a fine powder that settles into the turf. That means less bagging and more natural fertilization. The all-steel construction feels robust, and the blades come sharp out of the box. Installation is straightforward: remove the old blade, swap in the new one, and torque it down. Most users report the whole job takes about 10 minutes with a basic socket set.
That said, there are a couple of things to keep in mind. The blades do not come with new bolts or nuts, so you will need to reuse the originals or buy replacements. Some reviewers mention the blades can get dinged up faster than traditional gas mower blades, especially if you hit sticks or rocks. For a small yard with clean grass, they hold up fine for a full season. But if you routinely mulch over leaves or debris, plan on changing them once a year to maintain peak performance.
Overall, the EGO mulching blades deliver exactly what they promise: a clean, fine cut that keeps your lawn looking great without the hassle of bagging. They are a no-brainer for anyone already invested in the EGO 56-Volt platform who wants the best mulching results from their Select Cut mower. Just grab a set of bolts if you do not have spares, and you will be set for the season.
Product Dimensions: 20.2 x 1.97 x 0.79 inches
Item Weight: 2.59 pounds
Material: All steel
Compatibility: EGO POWER+ 56-Volt Select Cut Mowers: LM2130, LM2133, LM2130P, LM2135SP, LM2150SP, LM2156SP
Included: 1 lower mulching blade + 1 upper blade (2 blades total)
Nuts and bolts not included
Pros
- Oregon is a trusted brand with decades of blade manufacturing experience.
- The 6-pack offers excellent value compared to buying individual OEM blades.
- Compatible with a wide range of popular commercial mowers minimizes inventory needs.
- Air lift design improves cutting efficiency and reduces clumping.
Cons
- Designed primarily for zero-turn and commercial mowers, not standard walk-behinds or tractors.
- May be overkill for homeowners with small lawns who only need one blade per season.
- Blade sharpening will be needed over time like any steel blade, though edge retention is good.
If you're maintaining a commercial zero-turn mower from Scag, Ferris, Simplicity, or Snapper, the Oregon 91-626 6-pack is a smart replacement option. These 21-inch blades are built to match OEM specs exactly, so you won't fight with alignment or vibration issues after installation. Landscapers and contractors who run multiple machines will especially appreciate the convenience and cost savings of buying six blades at once.
Real-world performance is where these blades shine. The high-grade steel holds an edge longer than cheaper aftermarket alternatives, and the one-inch air lift helps discharge clippings evenly instead of leaving windrows. In my experience, Oregon blades cut cleanly through thick, damp grass without bogging down the engine, and they resist bending when you accidentally hit a rock or root. That durability matters when you're on a tight schedule and can't afford downtime.
Build quality is consistent across all six blades. The 0.203-inch thickness and 5/8-inch arbor hole fit snugly on spindles, and the balance is solid straight out of the box. For pros who swap blades frequently, the included count means you can pre-sharpen a few sets or rotate them across different mowers. Homeowners with large properties will also find this pack useful if they prefer to replace blades seasonally rather than sharpen.
A realistic drawback is compatibility: these blades only fit specific deck configurations (60-inch and similar with 21-inch blades). Always double-check your mower's part number against the list in the description. If you own a smaller push mower or a standard lawn tractor, these won't work. Also, while the steel is tough, you'll still need to sharpen after heavy use in abrasive conditions.
Overall, the Oregon 91-626 6-pack delivers professional-grade replacement blades at a competitive price. For anyone maintaining a Scag, Ferris, Simplicity, or compatible mower, this is a reliable, no-hassle choice that keeps your cut looking sharp all season.
Blade Length: 21 inches
Blade Width: 2.50 inches
Blade Thickness: 0.203 inches
Center Hole Size: 5/8 inch
Air Lift: 1 inch
Quantity: 6 blades per pack
Replaces OEM: Scag 48111, 481708, Ferris 5020842, 5101755, Simplicity 5022808ASM, Snapper 17081, and more (see product description).
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.
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.
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)
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.
Pros
- Exact fit for YARDMAX 22 in. gas mowers, no modifications needed.
- Durable steel construction holds an edge well and resists bending.
- Lightweight and easy to install, even for homeowners with basic mechanical skills.
- Good value for the price compared to OEM blades.
Cons
- Only compatible with YARDMAX 22 in. mowers, not a universal blade.
- Some users may prefer a mulching or high-lift blade for specific lawn care needs.
- Limited to standard cutting; no specialized features like serrated edges.
The YARDMAX 22 in. Replacement Blade is a straightforward accessory designed for YARDMAX gas lawn mowers with a 22-inch cutting deck. This blade is best suited for homeowners who own a compatible YARDMAX mower and need a direct replacement to maintain a healthy, well-groomed lawn. It is not a universal blade, so make sure your mower model matches before purchasing.
In real-world use, this blade delivers clean, even cuts thanks to its durable steel construction. It holds its edge reasonably well through several mowing sessions, though you may need to sharpen it periodically depending on lawn conditions and debris. The lightweight design (2 pounds) makes installation simple, even for those who are not mechanically inclined. Simply remove the old blade, bolt this one on, and you are back to mowing.
Build quality is solid for the price point. The steel feels sturdy and resistant to bending or warping under normal use. It is not a premium aftermarket blade, but it performs as expected for a budget-friendly replacement. The fit is precise, with no wobble or vibration issues reported by users. That said, it lacks features like mulching capabilities or a high-lift design, so it is best for basic side-discharge or bagging setups.
One realistic drawback is its limited compatibility. If you own a different brand or a different deck size, this blade will not work. Additionally, some users might prefer a blade with a specialized cutting edge or coating for longer life. However, for the price, this is a reliable way to restore cutting performance without overspending.
Overall, the YARDMAX 22 in. Replacement Blade is a practical choice for YARDMAX mower owners who want a no-fuss replacement. It offers good value, easy installation, and dependable cutting for regular lawn maintenance. If you need a basic blade that gets the job done, this is it.
Package Dimensions: 22.05 x 2.45 x 1.58 inches
Item Weight: 2 pounds
Manufacturer: YARDMAX
ASIN: B0B64K76F4
Date First Available: July 8, 2022
Best Sellers Rank: #174,752 in Patio, Lawn & Garden; #1,102 in Lawn Mower Blades
Pros
- Dramatic improvement in cut quality and mulching performance
- Easy to install with no modifications required
- Great value for a 3-pack compared to OEM prices
- High lift helps in tall or damp grass conditions
Cons
- May bog down in extremely thick or overgrown grass due to aggressive lift
- Some users report slight vibration if blades are not balanced before installation
- Not compatible with 42 inch decks - only for 48 inch models
The UDC Parts 532180054 lawn mower blades are a high lift mulching set designed for 48 inch riding mower decks. They replace OEM part numbers from Husqvarna, Craftsman, and Poulan, making them a direct drop-in upgrade for many popular models like the YTH24V48, YTH2348, and Craftsman CMXGZAM110149. These blades measure 16-3/4 inches diagonally with a 2-1/2 inch width and a 5-point star center hole.
These blades are best suited for homeowners and DIYers who want better mulching and a cleaner cut without spending a fortune on OEM parts. Users with older mowers especially notice a huge difference in cut quality and noise level. The high lift design pulls grass up for a more even cut and then mulches clippings into fine particles that settle into the lawn, reducing the need for bagging.
Performance is where these blades shine. Many reviews mention a dramatic improvement in cut quality, with grass cut cleanly and evenly. The mulching action is so effective that clippings virtually disappear. The blades also run quieter than stock blades, producing a soft hum instead of the typical roar. Build quality is solid - made from high-strength steel that holds an edge well. The 3-pack provides good value, and installation is straightforward with no modifications needed.
There are a few limitations to consider. The aggressive lift can bog down the mower in very thick or wet grass, so you may need to slow down or raise the deck slightly. Some users recommend checking blade balance before installation to avoid vibration. Also, these are specifically for 48 inch decks, so verify your deck size before buying. Overall, these blades offer excellent performance and value for anyone with a compatible 48 inch mower looking to upgrade their cut quality and mulching.
Dimensions: Length 16-3/4 inches (measured diagonally), Width 2-1/2 inches, Thickness 0.187 inches, Center Hole 5 point star, Air Lift 1-7/32 inches, Cutting Edge Length 5-43/64 inches, Compatible Deck Size 48 inches.
Package Dimensions: 17.28 x 3.15 x 2.2 inches. Item Weight: 6.41 pounds. Manufacturer: UDC Parts. ASIN: B0CPM4XKVV.
Replaces OEM Parts: Husqvarna 532180054, 180054, 532173920, 173920, 539107519, 575938201, Craftsman CMXGZAM110149.
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
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.
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
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
Frequently Asked Questions
How do I know which center hole fits my mower?
Check your manual or measure the existing hole. Common shapes include 5-point star, 6-point star, and bow-tie patterns. Mismatched holes cause vibration and spindle damage. Always verify the diameter and outer hole spacing before purchasing a new blade.
What is the difference between mulching and high-lift blades?
Mulching blades have serrations to chop clippings into fine pieces. High-lift blades create strong airflow for bagging or side discharge. Choose mulching for even dispersal and high-lift for clean bagging. The right profile depends on your preferred grass clipping management method.
Can I sharpen old blades instead of replacing them?
Yes, if the steel is not rusted or cracked. Use a proper blade sharpener to restore the edge. Sharpening saves money but does not fix imbalance. Replace blades if they are bent or excessively worn.
Why is my mower deck vibrating heavily?
Imbalance is the most common cause. Check that the blade is tightened to the correct torque. A bent blade or worn spindle bearing also causes vibration. Run a blade balancer to ensure even weight distribution before reinstalling the part.
Do electric mower blades need special steel?
Not necessarily, but they must be lightweight. High-efficiency thin-kerf blades reduce power draw on battery mowers. This helps maintain consistent RPMs during long sessions. Check the manufacturer’s weight limit for your specific electric mower model to ensure compatibility.


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