Nothing ruins a mowing session faster than a dull blade that leaves shredded, yellowing grass tips. You likely know the frustration of pushing a mower that vibrates excessively or fails to lift clippings into the bag efficiently. When you start searching for a Pulsar Lawn Mower Blade, the sheer number of OEM part numbers and center hole shapes can feel overwhelming. You need a replacement that fits your specific deck geometry without stripping the spindle or causing uneven cut lines. This guide helps you navigate the options by focusing on practical specifications rather than marketing fluff. We look at how different blade profiles affect airflow and cutting precision.
Choosing the right blade is less about the brand name and more about matching the steel gauge and lift angle to your mower’s power. A high-lift blade might boost bagging suction but could bog down a smaller engine, while a mulching profile requires specific serrations to chop clippings finely. By analyzing the manufacturer claims and user feedback for these pulsar lawn mower blade alternatives, you can avoid common installation errors. Proper balance is critical for protecting your spindle bearings over time. We highlight key dimensions like center hole diameter and outer hole spacing to help you verify fitment. This approach ensures you select a durable, compatible option that maintains edge sharpness longer.
Pros
- Direct replacement for popular OEM mower blade numbers
- Mulching performance is excellent for returning nutrients to the lawn
- High-lift design works well for bagging grass and leaves
- Affordable price for a quality steel blade
Cons
- Rust-resistant coating may wear off quickly in heavy use
- Not suitable for decks that require a star or oval center hole
- May require balancing before installation for best results
The GICOOL 406712 mulching blade is a solid replacement option for anyone with a 21 inch push mower from Craftsman, Husqvarna, Poulan, or other AYP brands. It's designed to handle all three common mowing modes: mulching, bagging, and side discharge. If you're a homeowner who wants a healthy lawn without spending a fortune on OEM parts, this blade delivers real value.
In real world use, the blade's multi-curve design does a great job of chopping clippings into fine pieces that decompose quickly. That means less thatch buildup and more nutrients going back into the soil. The high-lift wing also helps push clippings into the bag more efficiently, so you don't have to stop as often to empty it. For a typical suburban lawn, this blade handles the job without bogging down the mower.
Build quality is solid. The blade is made from 40MnB steel, which holds an edge well and resists bending under normal use. The rust-resistant coating is a nice touch, but it's mostly there to protect the blade during shipping and installation. It will wear off after a few mows, but that's normal for any coated blade. The 5/8 inch circle center hole makes mounting straightforward on most standard 21 inch mowers. Just make sure your deck uses a circle hole pattern, not a star or oval shape.
One thing to keep in mind: like most replacement blades, this one may need balancing before you install it. A simple blade balancer tool will tell you if it's off. It's a quick step that helps prevent vibration and uneven wear. Also, if you mow in very wet or tall grass, the mulching performance might be less effective. That's true for most mulching blades though.
Overall, the GICOOL 406712 is a smart buy for DIY homeowners who want a reliable, affordable blade that fits a wide range of popular mowers. It cuts well, mulches effectively, and works with bagging too. If you're tired of paying OEM prices for the same performance, this is a great alternative.
Length: 21 inches (533mm)
Width: 2-3/16 inches (55mm)
Thickness: 1/8 inch (3mm)
Air Lift: 1 inch (25mm)
Center Hole: Circle, 5/8 inch (16mm)
Blade Type: Mulching
Material: 40MnB Steel
Color: Black
Compatible OEM Numbers: 165833, 175064, 189028, 406712, 176135, 159267, 175052, 406706, 532165833, 532175064, 532176135, 532189028, 532159267, 532175052, 532406712, 532406706
Compatible Mower Models: AYP 21 inch deck models including PH65Y21RHP, PO500N21R, PO500N21RH, PO500N21RHX, PO500N21RH3, PR160N21CHC, PR160Y21RDP, PR600Y21RP, PR160Y21RPC, PR550N21R, PR550N21RH3, PR550N21RX, PR600N21RH, PR600N21RHX, PR600N21RHC
This blade is best suited for homeowners with a 21 inch push mower who want a 3-in-1 blade for mulching, bagging, and side discharge. It's ideal for regular lawn maintenance on medium sized yards where you want to return nutrients to the soil. The high-lift design also makes it a good choice if you frequently bag leaves in the fall. Not recommended for commercial mowing or decks with non-circular center holes.
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
- Durable high-strength steel construction handles tough grass and debris.
- Broad compatibility with many Troy-Bilt and Craftsman mowers using bow tie spindles.
- Aerodynamic mulching design produces fine clippings for better lawn nutrition.
- Rigorous testing ensures good balance and performance out of the box.
- Budget-friendly price point for a quality replacement blade.
Cons
- Only fits mowers with a bow tie center hole spindle; not universal.
- Paint coating will wear off quickly during use, which is normal but may concern some users.
- Limited to 21-inch deck mowers; not suitable for other deck sizes.
The Chway 21-inch mulching blade is a solid replacement option for homeowners and DIYers who own Troy-Bilt, Craftsman, or MTD walk-behind mowers with a bow tie spindle. It is designed specifically for mulching, meaning it chops grass clippings into fine particles that can be left on the lawn as natural fertilizer. This blade is not for bagging or side discharge, but it excels at returning nutrients to the soil.
In real-world use, the blade's aerodynamic curves generate strong airflow that lifts grass before cutting, then recirculates clippings for multiple cuts. This results in finely chopped debris that decomposes quickly. The high-strength steel holds up well against thick grass and occasional weeds, and the advanced heat treatment adds extra hardness. Users will appreciate that it comes pre-balanced and tested for Rockwell hardness and dynamic balance, so installation is straightforward and vibration is minimal.
Build quality is good for the price. The blade is 21 inches long, 2.25 inches wide, and 0.11 inches thick, with a 1-1/8 inch lift. The paint coating offers some corrosion resistance during storage, though it will wear off after a few mows. That's normal and does not affect performance. The only real limitation is compatibility: you must have a bow tie center hole spindle on your mower. Check your existing blade shape before buying. Also, this is a single blade pack, so if you have a dual-blade mower you'll need two.
Overall, the Chway 21-inch mulching blade is a reliable, affordable choice for maintaining a healthy lawn. It fits a wide range of popular Troy-Bilt and Craftsman models, and its performance is on par with OEM blades at a lower cost. If you need a replacement mulching blade for your 21-inch deck mower, this one is worth considering.
Product Dimensions: 21 x 2.25 x 0.11 inches
Item Weight: 1.81 pounds
Manufacturer: Chway
Model Number: Blade-01
Center Hole Shape: Bow Tie
Blade Type: Mulching Blade
Deck Size: 21 inches
Lift: 1-1/8 inches
Thickness: 9/64 inch (3.4 mm)
Material: High-strength steel with heat treatment
This blade replaces OEM numbers: 942-0741A, 942-0741, 742-0741, 742-0741A, 742-04100, 490-100-C089, 742-04276, 742-04276S, 942-04276, 942-04276S, CC-742-0741, CMXGZAM100067, OEM-742-0741.
Compatible Troy-Bilt mowers: TB110, TB240, TB230, TB130, TB200, TB160, TB210, TB280ES, TB320, TB115, TB220, TB360, TB105, TB120, TB125, TB130XP, TB140, TB160XP, TB270ES, TB270XP, TB290ES, TB330, TB360ES, TB370.
Compatible Craftsman mowers: M250, M110, M230, M140, M210, M100, M260, M105, M270, M115, M320, M310.
Also fits many MTD models using the same bow tie spindle. Always verify your center hole shape before purchase.
Pros
- Durable alloy steel construction resists dulling and deformation, even on thick or wet grass.
- Precise fit eliminates wobble and vibration, ensuring smoother mowing and a more uniform cut.
- Affordable price point compared to dealer-branded replacements without sacrificing fit or function.
- Easy to install with basic tools - a simple bolt-on swap that takes minutes.
- Compatible with multiple Greenworks 19-inch models, making it a versatile spare for households with more than one mower.
Cons
- Only fits Greenworks 19-inch mowers; not suitable for other brands or mower sizes.
- Steel blade can rust if left damp after use, so proper drying and storage are important.
- Some users find the blade needs sharpening after heavy use; routine maintenance is expected for any steel blade.
This Greenworks replacement lawn mower blade is purpose-built for the company's 19-inch corded and cordless electric mowers. It's not a universal blade - it's a direct OEM-style replacement for models like 2501302, 2500502, 25223, 25272, and 25292. If you own one of those mowers, this blade bolts right on with no filing or drilling.
Who should buy this? Homeowners who rely on a Greenworks 19-inch mower for their lawn care. Whether you're using the corded version for a small yard or the cordless for a medium lot, this blade keeps your mower cutting cleanly. It's a straightforward swap that restores cutting performance when the original gets dull or damaged.
Performance-wise, the blade is forged from a single piece of alloy steel, which gives it good rigidity and longevity. The grind on the cutting edge is sharp right out of the box and provides a clean slice through grass, reducing tearing and promoting healthier turf. The 17.72-inch actual length matches the mower deck precisely, so you get full cutting width without leaving uncut strips.
Build quality is solid for the price. The steel won't bend easily under normal use, and the black finish offers some corrosion resistance though it's not a coated blade. At 16 ounces, it's light enough to handle without strain during installation. You'll need a socket or wrench to remove the center bolt, but the process is simple and well within reach of a DIY homeowner.
One realistic drawback is compatibility - it only works on Greenworks 19-inch models, so no mixing with other brands. Also, being bare steel, it will rust if you leave it wet after mowing. Rinsing and drying before storage takes a minute but extends blade life. Overall, this is a reliable, affordable replacement that keeps your Greenworks mower running efficiently season after season.
Brand: Greenworks
Model Number: 29373
Blade Length: 17.72 inches
Cutting Width (Mower): 19 inches
Material: Alloy Steel
Weight: 16 ounces
Compatible Mower Models: 2501302, 2500502, 25223, 25272, 25292
Power Source: Corded Electric / Cordless (depends on mower)
Assembly Required: Yes (bolt-on installation)
Color: Black
Pros
- Exact OEM specifications provide dependable fit and balance on the SENIX LSSG-M1 mower
- Sharp 21-inch cutting edge shears grass cleanly to keep suburban lawns vibrant and healthy
- Heavy-duty steel build with corrosion-resistant finish offers dependable seasonal durability
- Enhances airflow under the deck, making subsequent driveway and walkway leaf cleanup much easier
Cons
- Designed specifically for the SENIX LSSG-M1 model and does not fit universal mower decks
- Mounting hardware such as replacement bolts and washers is not included in the package
- Requires periodic sharpening and balancing over time like all standard mower cutting blades
Maintaining a manicured turf starts with a sharp, reliable cutting edge, and the SENIX 21-Inch Lawn Mower Blade is crafted specifically as an OEM replacement for the SENIX LSSG-M1 gas-powered walk-behind mower. Designed for suburban homeowners, rural property owners, and dedicated lawn care enthusiasts, this blade restores original cutting efficiency so you can achieve clean lines across your front yard without tearing grass tips. When grass is cut cleanly rather than shredded, lawns stay greener, resist fungal stress better, and create much lighter clippings that make follow-up leaf blowing and walkway cleanup simple.
In terms of real-world lawn maintenance performance, this 21-inch blade is shaped to optimize under-deck lift and airflow. Proper aerodynamic lift is essential whether you mulch grass into fine nutrients or pack clippings into a rear bag. The clean rotational lift helps pull fallen leaves and flattened grass upright before cutting, which significantly reduces clumping in heavy spring growth or damp morning turf. After mowing your perimeter, the finely sliced debris is much easier to blow off sidewalks, patios, and flower beds with a handheld or cordless blower, saving time on your Saturday morning yard routine.
Build quality reflects strict manufacturing standards designed to meet or exceed original factory specifications. Measuring exactly 21 inches in length and 2 inches in width, the blade provides robust steel construction coated in a protective black finish to guard against rust, moisture, and ground sap. The balanced profile minimizes mower deck vibration, which protects your gas engine crankshaft from unnecessary strain and ensures a smoother walking experience across uneven suburban yards or ditch banks.
Installing the blade is straightforward for DIY homeowners equipped with basic garage hand tools, a wrench, and protective work gloves. Swapping out a dull or nicked blade before the busy spring and fall mowing seasons ensures your mower runs at peak efficiency without bogging down the engine. Regular seasonal maintenance like checking for balance after hitting stray sticks or gravel will prolong blade life and protect your lawn equipment investment for years of dependable service.
While this replacement blade performs reliably, buyers should keep a couple of realistic practical limitations in mind. It is engineered specifically for the SENIX LSSG-M1 model, meaning it is not a universal fit for other mower brands or alternative deck sizes. Additionally, mounting hardware such as the center bolt or washer is not included, so you will need to reuse your existing mower hardware. For homeowners who own an LSSG-M1 and want crisp yard presentation followed by effortless driveway clearing, this factory-spec replacement blade is a practical and cost-effective maintenance upgrade.
Performing routine seasonal maintenance on your lawn mower blade ensures clean grass cuts and lowers the operational workload on your gas engine. Always disconnect the spark plug boot on your SENIX LSSG-M1 before inspecting or removing the cutting blade to guarantee complete safety in the garage or shed.
Inspect the cutting edges periodically for small nicks caused by hidden roots, landscape edging, or gravel along driveway borders. Cleaning accumulated grass buildup from the underside of the blade and mower deck after mowing wet grass will help prevent rust and preserve balanced airflow throughout the season.
A sharp 21-inch blade directly enhances overall yard cleanup by generating fine clippings that decompose quickly or sweep into the rear catcher without clogging. This level of airflow performance prevents unsightly clumps on your freshly cut lawn, making it simple to blow stray debris off driveways, walkways, and patios with your favorite leaf blower.
Proper lift also aids in light fall cleanup by lifting stray autumn leaves off the turf so the blade can shred them into manageable mulch. Whether tackling regular weekly suburban mowing or prepping the yard for holiday gatherings, dependable cutting performance keeps your outdoor spaces looking pristine.
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.
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.
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
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.
Frequently Asked Questions
Do I need a specific center hole shape?
Yes, the center hole shape must match your spindle exactly. A 5-point star hole will not fit a 6-point star spindle, causing misalignment. Always measure your current blade’s mounting pattern before purchasing to prevent installation issues.
How do I remove a seized mower blade?
Use a breaker bar for leverage on the bolt. If it remains stuck, apply penetrating oil and let it soak. For safe removal steps, check our blade removal guide to avoid damaging the spindle.
Which blade is best for bagging efficiency?
High-lift blades create stronger airflow for better vacuum power. This design helps suck clippings into the bag more effectively. Look for a blade with a pronounced lift wing if clogging is a frequent issue in your yard.
Can I use any steel blade on a small mower?
Not always, as heavier steel can strain smaller engines. Check the manufacturer’s recommended blade weight for your specific model. A lighter, thinner-kerf blade may operate more smoothly on battery-powered or small gas push mowers.
How often should I sharpen my mower blade?
Sharpen when you notice torn grass or uneven cuts. Dull edges increase fuel consumption and stress the engine. Regular maintenance keeps the cutting deck balanced and ensures a clean, professional-looking lawn every season.
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