Ragged grass tips, uneven turf lines, and bogged-down decks often trace back to dull or warped cutting edges. Swapping out a battered cutter for the best cub mower blade restores clean slicing action across dense turf, which keeps lawn disease at bay and speeds up weekly yard chores. Based on product specifications and user feedback, deck size and center-hole patterns dictate whether a replacement works properly. Selecting matched blades helps your riding tractor or walk-behind deck generate maximum airflow for bagging or mulching without straining the engine. If your machine accepts standard mounts, looking at universal lawn mower blades provides an alternative, but dedicated replacements deliver exact factory alignment.
Mulching leaves and damp grass blades requires substantial lift and sharp steel to prevent unsightly clumping. Modern options from brands like MaxPowerPrecisionParts, Grasscool, and UDCParts feature tough powder-coated finishes that protect the cutting edge during transit and initial bolt-on. Our research into the listed features suggests that verifying your tractor spindle design prevents frustrating returns, especially since popular mowers feature distinct star and bow tie interfaces. Investing in the best cub mower blade ensures your machine mulches clippings finely and discharges evenly throughout the growing season.
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
- Excellent fitment for a wide range of mower models, as confirmed by many positive reviews.
- High lift design significantly improves grass collection and leaf bagging performance.
- Good value for the price, offering OEM-like quality at a lower cost.
- Easy to install with clear compatibility information provided.
Cons
- Some users may find the paint on edges wears off quickly during use, though this is normal and doesn't affect performance.
- Not suitable for mulching, as these are high lift blades optimized for bagging and discharge.
- The 6-point star hole may not fit older models with a different center hole shape, so double-check compatibility before ordering.
The Grasscool 942-04308 high lift mower blades are a direct replacement for a wide range of 42-inch deck riding mowers from Troy-Bilt, Cub Cadet, Craftsman, and other MTD brands. These blades feature a 6-point star center hole and are designed for bagging and side discharge applications. With a length of 21-3/16 inches and a high lift profile, they generate strong airflow to propel clippings into the collection bag or out the discharge chute.
These blades are best suited for homeowners and DIYers who own compatible mowers and want reliable cutting performance without paying OEM prices. The high lift design excels at handling tall, wet grass and leaves, making them a great choice for fall cleanup and routine mowing. Many users report perfect fit and improved bagging compared to worn-out original blades.
Build quality is solid for the price point. The blades are made from durable steel and come with a rust-resistant paint coating on the cutting edges. The paint also helps protect your hands during installation. The blades can be sharpened easily to extend their lifespan. Installation is straightforward if you follow the included compatibility notes, but be sure to check your current blade's center hole shape before ordering.
One limitation is that these are not designed for mulching. They are strictly for bagging and side discharge. Also, the 6-point star hole is specific to certain models; if your mower uses a 5-point star or S-shaped hole, you will need a different blade. Despite these constraints, the Grasscool blades offer excellent value for their intended use.
Overall, if you need a reliable set of high lift blades for a 42-inch deck mower from Troy-Bilt, Cub Cadet, or Craftsman, the Grasscool 942-04308 is a smart purchase. They deliver strong performance, easy installation, and a price that leaves room in your budget for other workshop needs.
Blade Type: High Lift
Deck Size: 42 inches
Blade Length: 21-3/16 inches (538mm)
Blade Width: 2-3/8 inches (60mm)
Thickness: 5/32 inch (4mm)
Center Hole: 6 Point Star (5/8 inch)
Outer Hole Center to Center: 3 inches (76mm)
Outer Hole Diameter: 13/32 inch (10.3mm)
Air Lift: 1-1/8 inches (28mm)
Cutting Edge Length: 6-7/8 inches (175mm)
Weight: 3.4 pounds (set of 3 blades)
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.
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.
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
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.
Pros
- Direct fit for multiple popular zero-turn and riding mower brands
- Robust construction handles thick grass and light debris without bending
- Excellent value for a set of three compared to single-blade OEM options
- Positive near-instant improvement in cut quality and discharge
Cons
- Slightly heavier than some OEM blades may require deck leveling check
- Some users report minor tip clearance issues on older decks that need a quick grind
- Not compatible with non-star center hub systems or smaller deck sizes
The MaxPower 561557B 3-blade set is a practical, no-nonsense replacement kit designed for 54-inch mower decks from Craftsman, MTD, Cub Cadet, and Troy-Bilt. Each blade measures 18-5/8 inches long with a 2-1/2 inch width and a 6-point star center hole, matching the original equipment specifications for many popular zero-turn and riding mowers. MaxPower replaces common OEM numbers like 742-05056 and 942-05056, ensuring a straightforward swap for homeowners and small-property owners who maintain their own equipment.
In real-world use, these blades shine at lifting and discharging grass. The heat-treated steel construction provides a good balance of sharpness and impact toughness. During thick, wet cutting sessions, the blades maintain a clean cut without bogging the engine down, partly thanks to their slightly higher weight compared to OEM blades. That extra mass acts as a mini flywheel, helping the spindles power through dense growth. One reviewer noted excellent performance on an overgrown property, chewing through small oak limbs without damage. The set's suction is strong enough to minimize clumping in the bagger, though you may still need to check deck leveling for optimal results on uneven terrain.
Build quality is consistent with USA-made claims. The blades arrive with a factory edge and a protective coating that resists surface rust during storage. Installation is straightforward: jack up the mower safely, remove the old blades, and bolt these on with the correct torque. On some older decks, the blade tips may barely contact the deck shell, but a quick pass with a hand grinder (as one reviewer did) resolves this in minutes. A few customers also mention that the blades are slightly thicker at the attachment hole, so check your spindle bolt length if your mower uses shallow pockets.
Drawbacks? The added mass might worry owners of older, low-horsepower riders, but the actual weight increase is modest about 0.2 pounds per blade. For most modern mowers, this is not an issue. Also, the set is specifically designed for 54-inch decks with a 3-blade spindle pattern; it won't work on 42- or 46-inch decks. If your mower uses a different center hole shape or offset pattern, verify compatibility before purchase. A very small number of early reviewers had to slightly round a corner tip, but this is uncommon and easy to fix.
Overall, the MaxPower 561557B is a smart buy for anyone who wants reliable, durable blades at a fair price. Whether you're a homeowner cutting a couple of acres weekly or a light commercial operator maintaining a small fleet, this set delivers OEM-level cut quality and cost savings. Skip the dealership markup and grab this three-pack you'll have a spare blade ready for the next season.
Brand: MaxPower
Model: 561557B
Blade Length: 18-5/8 inches
Blade Width: 2-1/2 inches
Center Hole: 6-point star
Quantity: 3 blades
Replaces OEM: 742-05056, 942-05056, 742-05056A, 942-05056A, CMXGZAM110143
Compatible Decks: 54-inch cut on Craftsman, MTD, Cub Cadet, Troy-Bilt
Manufactured in: USA (Glennville, GA and Phoenix, AZ)
These blades are best for homeowners with 54-inch riding or zero-turn mowers who maintain 1-5 acres of grass. They work well on lawns with moderate debris like twigs and small branches. The strong lift makes them suitable for bagging systems and side discharge decks. Light commercial users running a few properties will also appreciate the durability and price point.
Frequently Asked Questions About Best Cub Mower Blade
How do you know if your mower requires a 6-point star or an S-shaped center hole?
You must inspect the underside of your existing spindle or current blade center hole before ordering replacements. Many lawn tractor decks use a 6-point star pattern, while others specifically require an S-shape or bow tie design. Installing a mismatched pattern damages the spindle star and causes severe deck vibration. Checking your mower model tag and existing blade ensures you order the exact compatible mount.
What is the difference between high-lift and mulching blades for a Best Cub Mower Blade setup?
High-lift blades feature larger curved rear wings to create maximum airflow for bagging and side discharge, whereas mulching blades have curved cutting surfaces designed to recut clippings into tiny particles. A high-lift design excels in tall or wet turf because the upward draft clears debris rapidly from the deck. Mulching designs keep clippings suspended under the deck longer to recycle nutrients into the lawn. Your choice depends on whether you prefer collecting grass or feeding the turf naturally.
Why are replacement mower blades coated in thick paint on the cutting edge?
Manufacturers apply powder coating to prevent rust during shipping and storage and to safeguard your hands during installation. This protective paint wears away naturally after a few minutes of mowing, exposing the sharpened steel underneath. You do not need to scrape or grind off the coating before bolting the blade to the spindle. Routine lawn maintenance will clear the paint edge and establish a clean cut quickly.
Can installing the wrong Best Cub Mower Blade size cause deck damage?
Yes, installing blades that are too long will cause them to strike the deck shell or collide with adjacent blades in multi-blade setups. For instance, a 42-inch tractor deck typically uses two 21-inch to 21-1/4-inch blades, whereas a 54-inch cut requires a set of three 18-5/8-inch blades. Installing undersized blades leaves uncut strips of grass across your lawn. Always match the diagonal tip-to-tip measurement specified by your manufacturer.
How often should you balance and inspect your blades during the 2026 season?
You should inspect and balance your cutting edges after every 25 hours of use or whenever you hit a solid obstacle like a rock or tree root. An unbalanced blade strains the spindle bearings and produces uneven cutting lines across your grass. It is simple to check lawn mower blade balance on a wall nail or dedicated balancing cone before reinstalling. Keeping blades balanced extends spindle life and delivers a manicured lawn finish.
Do replacement blades come pre-sharpened from the factory?
Yes, replacement blades from brands like MaxPowerPrecisionParts, Grasscool, and UDCParts arrive pre-sharpened and ready to install. While the cutting edge is covered in protective paint, the factory bevel provides adequate sharpness for standard turf maintenance. Some property owners prefer filing an extra razor edge for show-quality lawns, but factory sharpness prevents premature edge rolling in rocky terrain.
Write Your Review
No reviews yet. Be the first to share your experience!