Thick grass buildup beneath your mower deck creates heavy drag that strains belts and pulleys, often stalling your cutting system right when yard work begins. Facing lawn mower blades not engaging usually signals excess friction, a slipping drive belt, or bent cutting edges binding against the deck housing. Dull, warped blades won’t slice grass cleanly, leaving ragged, yellowing turf tips behind. Checking your cutting components alongside belt tension helps pinpoint whether damaged metal or thatch resistance stops your deck from spinning freely. Reviewing OEM spindle charts and identifying the right Craftsman deck blade size ensures smooth clearance without dangerous binding.
Installing balanced replacement steel restores smooth rotational momentum and prevents severe spindle bearing vibrations. Careful analysis of manufacturer specifications, steel thickness, and center hole mounting geometry reveals how proper blades protect your entire driveline. Whether you push a 21-inch walk-behind mower or steer a 42-inch lawn tractor, fresh high-lift and mulching blades generate powerful suction to pull grass upright for a level cut. That steady airflow keeps clippings moving into your bagger or disperses fine mulch across the lawn, eliminating engine strain all season long.
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
- 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
- Fits a wide range of popular mower brands without modification.
- Sturdy alloy steel holds an edge longer than basic stamped blades.
- Easy install with no assembly required – just swap out the old blade.
Cons
- Only fits 21-inch decks; not compatible with larger or smaller mowers.
- May need to verify your old part number against listed predecessors to ensure match.
The Husqvarna 532406712 replacement blade is a straightforward, no-nonsense option for anyone who owns a 21-inch push mower from Husqvarna, Poulan, Craftsman, Weed Eater, or Roper. If you are a homeowner or DIYer who handles your own lawn maintenance, this blade gives you a reliable way to restore cutting performance without breaking the bank. It replaces several earlier part numbers like 165833, 175064, and 406712, so checking compatibility is simple.
Out in the yard, this blade handles thick grass and occasional debris well. The alloy steel construction keeps the edge sharp through several mowings, and the 0.130-inch thickness provides enough stiffness to prevent flexing during tough cuts. You will notice a cleaner slice versus older, worn blades, which means less tearing and a healthier lawn. The right-hand cut direction works seamlessly with standard bagging and mulching setups, so you do not have to change your mowing routine.
Build quality is what you would expect from Husqvarna – solid, consistent, and designed for longevity. The blade is lightweight at just 1.5 pounds, which reduces stress on the mower deck and engine over time. Installation is straightforward: remove the old blade, center the new one on the 5/8-inch hole, and torque it down. No modding or adapters needed.
One realistic limitation is that this blade only fits 21-inch decks. If you have a 20-inch or 22-inch mower, you are out of luck. Also, double-check your current part number against the list of predecessors to avoid a mismatch. But for the vast majority of standard push mowers in its size range, this blade is a dependable performer that delivers good value for the cost.
Overall, the Husqvarna 532406712 is a smart upgrade for anyone wanting a sharp, durable blade without hunting down a dealer. Whether you are a weekend warrior or just keeping your lawn tidy, this blade will get the job done reliably.
Brand: Husqvarna
Model Number: 532406712
Length: 21 inches
Width: 2 1/4 inches
Thickness: 0.130 inches
Center Hole Diameter: 5/8 inch
Outer Hole Diameter: 5/8 inch and 1 7/8 inch
Material: Alloy Steel
Weight: 1.5 pounds
Cut Direction: Right
Compatible Brands: Husqvarna, Poulan, Poulan Pro, Roper, Sears/Craftsman, Weed Eater
This blade is ideal for routine mowing on 21-inch push mowers in residential lawns. It works well for homeowners who prefer to bag clippings or mulch leaves thanks to the right-hand cut design. DIYers maintaining medium-sized yards will appreciate the durability and easy swap-out when the old blade dulls. Not suited for commercial zero-turn mowers or larger decks.
Pros
- Quiet, smooth cutting performance with minimal vibration
- Excellent mulching that eliminates the need for bagging in most conditions
- Easy, tool-free installation if you have a socket wrench
- Sturdy build that feels more substantial than stock blades on many mowers
Cons
- High-lift design may suck up loose debris like small sticks or garden hoses if run over
- Not compatible with every 21-inch deck; check the extensive model list before ordering
- Slightly heavier than some OEM blades, which could affect balance on older mowers
If you're looking for replacement mower blades that punch above their weight, the UDC Parts 942-0741A 21-inch mulching blades are a solid choice. These are aftermarket replacements designed to fit a huge range of push mowers from brands like Troy Bilt, Craftsman, MTD, Cub Cadet, Yard Machines, and many more. The 2-pack gives you a spare right off the bat, which is handy for busy mowing seasons.
These blades are best suited for homeowners and DIYers who maintain their own lawns and want a clean, mulched finish without bagging. They're not aimed at commercial landscapers running zero-turn mowers - these are for standard 21-inch walk-behind mowers. But for that audience, the performance is excellent. Users consistently report a whisper-quiet cut that's actually smoother than their original blades. The mulching action is aggressive; clippings get chopped into fine pieces that disappear into the lawn, leaving no piles or streaks. Even in slightly overgrown grass, these blades handle the job without bogging down.
Build quality is a strong point. The blades are made from high-strength steel that feels thicker and heavier than the stock blades on many mowers. They hold their edge well over several mows, and the coating resists rust. Installation is straightforward - the center hole is a bow-tie shape, and the outer holes align with most spindles. Just remember to use a torque wrench to spec the bolt (most mowers call for 30-40 ft-lbs). The blade length is exactly 21 inches diagonal, with a cutting edge length of about 6 inches, so you get good overlap across the deck.
One realistic downside is the high-lift design. It creates a strong vacuum under the deck, which is great for lifting grass and shredding clippings, but it can also suck up loose objects like small sticks, rocks, or even a garden hose if you accidentally run over it. A few reviewers mentioned this, so it's worth being careful around debris. Also, these blades are not intended for bagging or side-discharge setups - they are optimized for mulching. If you need to switch to bagging, you might want a different blade.
Overall, the UDC Parts 942-0741A blades offer exceptional value for the money. They outperform many OEM blades in cut quality and noise reduction, and they fit an absurdly wide range of mowers. For homeowners who want a manicured lawn with less effort, these are a no-brainer. Keep a spare set handy, and you'll be set for a couple of seasons.
Blade Length: 21 inches (measured diagonally)
Blade Width: 2-1/4 inches
Thickness: 0.126 inches
Center Hole: Bow-tie shape
Side Hole: 5/16 inch
Center to Center Outside Hole: 2-1/2 inches
Air Lift: 1-7/64 inches
Cutting Edge Length: 6-7/64 inches
Compatible Deck Size: 21 inches
Package Weight: 3.37 pounds
Manufacturer: UDC Parts
Pros
- Excellent value compared to OEM blades, saving money without sacrificing cut quality
- High lift design works well for bagging and side discharge, reducing clumping
- Sturdy construction and good balance out of the box, minimizing vibration
- Fits a wide range of popular lawn tractors, simplifying replacement
Cons
- Only fits 5-point star center hole adapters; must check your current blade to avoid ordering wrong type
- Some users report slightly heavier weight than stock blades, which may affect performance on lighter mowers
- Paint on cutting edges wears off quickly, though this is normal and does not affect function
If you own a 42-inch deck riding mower from Craftsman, Husqvarna, or Poulan Pro and need fresh blades, the Grasscool 138971 replacement set is worth a close look. These are high lift blades designed for better grass discharge and a cleaner cut, especially in thicker or damp conditions. They come with a 5-point star center hole that matches many popular models including the Craftsman T110, LT1000, LT2000, and Husqvarna YTH18542. Before ordering, double check that your mower uses a 5-point star adapter, not a 6-point, because these won't swap over.
Performance wise, these blades do exactly what you'd expect. They slice through grass cleanly and the high lift design helps toss clippings into the bag or out the chute without leaving clumps behind. Multiple reviews mention that the blades are balanced well out of the box, which means minimal vibration during operation. That's a big plus for comfort and for reducing wear on the spindle assembly. For homeowners and DIYers cutting a couple of acres weekly, these hold up nicely. The steel is heat treated and the cutting edges come with a protective paint coating that resists rust, though it will wear off after a few mowings as the blades do their job.
Build quality is solid at this price point. Grasscool puts these through hardness, balance, and performance tests, and that shows in the consistency of the product. The blades are slightly thicker than some OEM options, which adds stiffness but might add a little extra weight. For most riders that won't matter, but if your mower is on the lighter side you may notice a small difference in engagement feel. Installation is straightforward if you're comfortable with a socket wrench, and the blades line up perfectly with the 5-point star pattern.
One realistic limitation is the star point compatibility. There are two common patterns for these Craftsman-style mowers, and ordering the wrong one is a common mistake. Also, a few users noted that on Poulan Pro models the fit can be a bit tight, so measure carefully. That said, the vast majority of buyers report a perfect fit and improved cutting performance over worn OEM blades.
Overall, the Grasscool 138971 high lift blades are a smart buy for anyone who wants reliable performance without spending top dollar. They're best suited for homeowners, DIYers, and light commercial users who maintain their own equipment. If you confirm the 5-point star pattern and match your model from the compatibility list, you'll get smooth operation and a clean lawn at a fraction of the cost of name-brand replacements.
Pros
- Exact OEM replacement guarantees compatibility with Husqvarna 42-inch decks
- Hardened steel provides superior edge retention compared to standard blades
- Quieter operation means less noise fatigue during long mowing sessions
- Mulching and side discharge work well for a variety of grass conditions
Cons
- Only fits 42-inch Husqvarna riding mowers with star mount pattern
- Premium OEM pricing may be higher than aftermarket alternatives
- Pack includes only two blades, so extra blades needed for larger decks or spares
The Husqvarna 42-Inch Mulching Lawn Mower Blades are a factory replacement part designed specifically for Husqvarna riding mowers with 42-inch cutting decks. As a direct OEM replacement (part number 594892701), these blades aim to restore original cutting performance and reliability that degrades over time with use and wear.
This blade set is best suited for homeowners with Husqvarna lawn tractors who want to maintain factory-grade mulching and side discharge capabilities. Unlike generic blades that may require bending or adjustment, these blades use the precise star mount pattern and hardened steel construction for effortless installation and immediate performance.
In real-world use, the hardened steel edges hold their sharpness noticeably longer than standard blades, which means fewer replacements over a season. The blade profile is engineered for both mulching and side discharge, so you can switch between tasks without swapping blades. The smoother running characteristic reduces vibration, which translates to a quieter mowing experience and less fatigue.
Build quality is typical Husqvarna: durable, corrosion-resistant, and precisely balanced. However, the pack includes only two blades, which is exactly what you need for a single swap on most 42-inch decks. If you prefer to keep a spare set or have a larger deck, you will need to order multiple packs. Also, the premium OEM price point is higher than some aftermarket options, but the guaranteed fit and longevity justify the cost for many users.
Overall, if you own a 42-inch Husqvarna riding mower and want hassle-free replacement blades that deliver consistent cutting performance, this two-pack is a solid investment. It balances ease of installation with long-term durability, making it a practical choice for weekend lawn care enthusiasts who value a clean, even cut.
Color: Orange
Dimensions: 22 x 2.2 x 1 inches (per blade)
Product Group: Lawn and Patio
Blade Length: 42-inch deck fit
Mount Type: Star mount
Material: Hardened steel
OEM Part Number: 594892701
Residential lawn care with Husqvarna 42-inch riding mowers seeking OEM-grade mulching and side discharge performance.
Seasonal blade replacement for homeowners who want to maintain a cleaner cut and extend mower deck lifespan.
Users who prioritize quiet operation and reduced vibration during weekly mowing sessions.
Frequently Asked Questions
Can jammed or bent blades cause lawn mower blades not engaging?
Yes, packed grass clippings or severely bent blade tips can wedge against the deck housing, stopping spindles from rotating. When the engagement cable or PTO pulls tight against an immobilized spindle, the belt slips and smokes. Clearing packed deck buildup and mounting factory-spec blades like the Maxpower 331528B or UDC Parts 21-inch mulching blade restores proper clearance.
How do you choose between a 5-point star, 6-point star, and bow-tie center hole?
You must match your spindle shaft pattern exactly because mismatched center holes cause blade slippage and strip spindle splines. Many Craftsman and Poulan Pro 42-inch decks require a 5-point star mount like the Grasscool 138971 blade, while MTD and Troy-Bilt models often need a bow-tie shape. Checking your current blade hub or reviewing mower blade customer feedback prevents ordering errors.
What is the main difference between high-lift blades and dedicated mulching blades?
High-lift blades feature tall rear sails that generate maximum suction to shoot clippings into collection bags, while mulching blades use curved, toothed edges to recut grass into fine mulch. Sets like the Husqvarna 594892701 mulching blades chop grass repeatedly so it decomposes into the soil. Standard high-lift wings work best for wet grass or bagging, keeping the discharge chute completely clear.
How can you safely remove a stubborn mower blade without the spindle spinning?
Wedging a scrap 2×4 wood block between the blade tip and inner deck wall locks rotation safely so you can break the center bolt loose. Most push mowers and lawn tractors use standard right-hand threads that loosen counterclockwise. Always disconnect your spark plug boot or pull the battery key before working near cutting edges to prevent accidental engine turnover.
When is it better to replace a mower blade rather than sharpening it?
You should replace the blade immediately if the steel is bent, cracked, or excessively thinned near the lift wing. Sharpening blades with deep rock gouges removes excess metal, unbalancing the blade and damaging spindle bearings. Switching to a factory-balanced black mower blade setup ensures smooth operation and crisp cuts for the 2026 mowing season.
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