8 Best Lawn Mower Replacement Blades to Buy in 2025

If you own a Toro Recycler and want authentic performance without compromise, this genuine Toro 59534P blade is engineered to deliver. Built to replace OEM part 131-4547-03, it features a toothed mulching design that finely chops grass for superior nutrient recycling. The precision-ground edge and 21-11/16″ length are optimized for 22-inch Recycler decks, ensuring ideal overlap and airflow. For users battling clumping or poor mulching, this blade eliminates guesswork with a factory-correct profile that maximizes recycler efficiency.

During testing on damp, dense grass, the toothed edge repeatedly re-cut clippings into near-dust, significantly reducing visible residue and promoting faster decomposition. The 7/16″ center hole and 0.150″ thickness provide a snug fit on standard spindles, minimizing vibration even at full throttle. While it shines in mulching mode, it performs adequately in side discharge—though bagging capacity is modest due to lower lift. Notably, it maintains sharpness longer than many aftermarket blades, but like all mulching blades, it demands regular cleaning to prevent clogging in wet conditions.

When compared to MaxPower’s replacement version, this genuine Toro option offers slightly better edge retention and tighter quality control, though at a higher per-blade cost. It’s best suited for Toro Recycler owners focused on mulching performance and brand authenticity, especially those maintaining lush, healthy lawns. While not the most versatile blade, its dedicated mulching excellence outperforms universal high-lift blades in recycling efficiency.

For budget-conscious owners of 42-inch residential mowers, this two-pack high-lift blade set delivers exceptional value without sacrificing performance. Designed to replace popular OEM numbers like 138498 and 532138971, these blades feature a five-point star center hole and aggressive lift profile that boosts suction for superior bagging and side discharge. At just over $12 per blade, they undercut genuine OEM prices by half while offering solid steel construction and factory-like balance—a game-changer for those maintaining larger yards.

In field tests on a Husqvarna YTH18542, the blades generated strong airflow that minimized clogging and filled the bag faster than standard mulching blades. The 21-inch length and 2-5/16″ width fit snugly on 42-inch decks, maintaining clean cuts across tall fescue and mixed weeds. While not quite as refined as OEM blades in finish, they held an edge well and showed minimal vibration after installation. However, in wet grass, they required more frequent deck scraping—common with high-lift designs due to increased debris pull.

Compared to the Honda OEM set, these blades trade some refinement for versatility and cost savings, making them ideal for homeowners with larger lawns who prioritize bagging efficiency and affordability. They’re a smarter upgrade than single generic blades, especially when maintaining older Craftsman or Husqvarna models. While they lack the premium balance of genuine parts, their performance-to-price ratio outshines most competitors in the mid-duty residential segment.

For EGO mower owners, this genuine 3-in-1 blade is engineered to maximize the potential of high-torque electric motors with precision-cut efficiency. Designed exclusively for EGO’s LM2100 and LM2102SP models, it features a factory-sharpened, high-lift design that seamlessly switches between mulching, bagging, and side discharge—no adjustments needed. The clean-cut geometry and balanced profile leverage EGO’s instant blade response, delivering a crisp, even cut that promotes lawn health and reduces stress on the motor.

In real-world mowing, the blade excelled in all three modes, with strong airflow keeping the deck clear even in dense growth. Its optimized curve and lift ensure grass is lifted before cutting, preventing tearing and browning—common issues with dull or poorly balanced replacements. At 21 inches, it matches the deck perfectly, eliminating dead zones. While it performs best with EGO mowers, it’s not compatible with other brands, locking users into genuine parts—but for good reason: third-party blades often disrupt the motor’s load calibration.

Compared to the Greenworks replacement, this EGO blade offers tighter manufacturing tolerances and better integration with the mower’s performance algorithms, resulting in smoother operation and longer battery efficiency. It’s the top choice for eco-conscious users who rely on electric mowers for quiet, clean operation and demand optimal cutting performance. While more expensive than generic options, its precision engineering and multi-function design justify the cost for dedicated EGO owners.

For corded Greenworks 20-inch mower owners, this budget-friendly replacement blade offers reliable performance at a fraction of OEM cost. Forged from a single piece of hardened steel, it resists warping and lasts longer than multi-piece competitors, making it ideal for frequent mowing. At 19.69 inches, it fits models 25022 and 25112 with pinpoint accuracy, ensuring balanced rotation and clean cuts. For users tired of replacing flimsy blades every season, this one delivers durable, no-frills performance without breaking the bank.

In testing, it handled dry, medium-height grass with ease, producing a uniform cut and minimal vibration. The solid steel construction showed resistance to nicks and dulling, even after hitting light debris. However, in thick or wet grass, it struggled slightly with airflow, leading to minor clumping—expected given its modest lift profile. While it doesn’t match the high-performance curves of mulching-optimized blades, it does the job well for basic residential mowing and is perfect for maintaining small, flat lawns.

Compared to the EGO genuine blade, this Greenworks option lacks advanced lift and multi-function design but wins on affordability and simplicity. It’s best suited for casual users with small yards who mow weekly and want a dependable, low-cost replacement. While not built for heavy-duty tasks, its one-piece durability and accurate sizing make it the smartest budget pick for compatible models.

MaxPower’s 331376XB mulching blade is a high-performance alternative for Toro Recycler owners who want OEM-level results without the premium price. Designed to replace 131-4547-03, it features a 21-11/16″ toothed edge and 7/16″ center hole, matching factory specs for seamless installation. The powder-coated finish protects during shipping and wears off after first use, revealing a precision-sharpened cutting edge ready for action. For users seeking commercial-grade mulching at a residential price, this blade delivers impressive performance.

In real-world testing, it chopped grass into fine particles, rivaling the genuine Toro blade in mulching efficiency. The balanced design reduced vibration, even at high RPMs, and the 0.150″ thickness handled moderate bumps without bending. It performed best in dry conditions, though like all mulching blades, it required deck cleaning after wet mows. While it doesn’t outperform OEM in edge longevity, it comes remarkably close—especially considering the significant cost savings.

Compared to the genuine Toro 59534P, this MaxPower blade offers nearly identical performance at a lower price, making it ideal for cost-aware users who still demand strong mulching results. It’s perfect for suburban lawns where recycling clippings is a priority and budget matters. While it may not last quite as long as OEM, its value-to-performance ratio makes it the smarter long-term investment for most Toro Recycler owners.

The Grasscool 21-inch mulching blade is a high-performance powerhouse engineered for Troy-Bilt owners who demand aggressive mulching and clog-resistant operation. With a Bow Tie center hole and 1-1/8″ lift, it’s built specifically for models like TB110, TB210, and Craftsman mowers with matching spindles. Its 3-in-1 design combines mulching, bagging, and side discharge—thanks to a complex curved profile that recuts grass multiple times before recycling it into the soil. For users battling thick overgrowth or uneven clippings, this blade delivers exceptional airflow and fine decomposition.

Field-tested on a Troy-Bilt TB210, it effortlessly shredded tall grass and weeds, with minimal clogging thanks to optimized high-lift geometry and strong suction. The 9/64″ thickness and Rockwell-hardened steel resisted bending and held an edge well, even after hitting hidden debris. The painted cutting edges protect hands during installation and wear off naturally. However, the Bow Tie hole limits compatibility—installers must verify spindle match to avoid fit issues.

Compared to the MaxPower 331376XB, this Grasscool blade offers superior multi-function design and higher lift, making it better for bagging and rugged terrain. It’s ideal for Troy-Bilt and MTD owners who tackle tough mowing conditions and want a durable, high-lift mulching solution. While less universal than star-hole blades, its performance in demanding scenarios surpasses most competitors in its class.

For owners of 46-inch riding mowers, the MaxPower 561739B dual-blade set is a workhorse solution built to handle large-acreage mowing with commercial-grade durability. Each 23-inch blade features a five-point star center hole and 2-3/4″ width, designed to replace OEM 405380 and fit a wide range of Craftsman, Husqvarna, and Poulan models. The USA-made construction and precision sharpening ensure balanced, efficient cutting across expansive lawns—perfect for users tired of replacing flimsy, imported blades.

In real-world use on a 46-inch Craftsman DYT4000, the set delivered consistent, clean cuts with minimal vibration, even at full throttle. The high-lift design enhanced bagging efficiency, reducing passes needed to clear large yards. The powder coating wears off after first use, revealing a razor-sharp edge ready for heavy-duty work. While installation requires verifying OEM number match, the payoff is long-lasting performance and reduced deck strain.

Compared to the 2-pack for 42-inch decks, this set is built for heavier loads and larger decks, making it ideal for property owners with half-acre lots or more. It’s the go-to choice for those prioritizing durability and coverage over ultra-fine mulching. While it demands precise compatibility checks, its robust build and large-deck optimization make it the top pick for serious mowing tasks.