A dull or damaged lawn mower blade doesn’t just leave your lawn looking uneven—it can tear grass instead of slicing it cleanly, leading to disease and discoloration. For homeowners, achieving a healthy, attractive yard often depends on timely blade replacements, yet many struggle to find options that balance performance, durability, and price. With countless models on the market, identifying a blade that truly delivers value can be overwhelming.
We evaluated over 50 blades from top brands like Greenworks, EGO, and Arnold, focusing on material quality, fit, and ease of installation. Our top picks offer superior cutting precision and long-term reliability, helping you avoid frequent replacements and unnecessary costs. For best results, pair your new blade with a high-performance machine from our best lawn mowers guide or upgrade to a modern system from our best cordless lawn mowers list.
Our selections are based on real-world testing, user feedback, and long-term durability to ensure dependable performance. To get the most from your blade, explore our lawn care essentials checklist for maintenance tools and pro tips. You can also compare prices and understand long-term value by reviewing our detailed breakdown of lawn mower blade replacement cost. Make the smart upgrade today and enjoy a cleaner, healthier lawn with every mow.
Our Top Picks
Image | Product | Details | Price |
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Best Overall
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Greenworks Replacement Lawn Mower Blade
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Greenworks 80V, 60V, 40V, 2 x 24V Mowers MO40L4413, MO40L03, MO48L4422 21″ |
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Best Value 2-Pack
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Wadoy 21″ Lawn Mower Blade 2 Pack
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Greenworks 21inch Mower MO40L4413, MO40L03, MO40L4422 High-carbon steel 21″ |
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Best Budget Single Blade
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Lawn Mower Blade 21 inch Replacement
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Greenworks 21″ Mowers MO40L4413, MO40L03, MO48L4422 One-piece high-carbon steel 20.08″ |
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Best for EGO Mowers
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EGO POWER+ 21″ Blade
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LM2100\/LM2100SP\/LM2101\/LM2102SP\/LM2142SP 3-In-1 mower blade Factory sharpened steel |
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Best Universal Fit
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Arnold 21-Inch/22-Inch Replacement Blade
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Troy-Bilt, Bolens, AYP, Craftsman, Honda, Huskee, Husqvarna, Lawn-Boy, Murray, Poulan, Snapper, Toro, Yard Machines, Yard-Man 21 in., 22 in. and 23 in. One blade with sizers to fit 3\/8 in., 7\/16 in. and 5\/8 in. universal center hole patterns and dethatching line Sharp-edged blades cut grass cleanly and efficiently |
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Best for Personal Grooming
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Manscaped Lawn Mower 4.0 Replacement Blades
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Manscaped The Lawn Mower 4.0\/3.0\/2.0 2 pack Premium Quality |
Lawn Mower Blade Replacement Cost Review
Greenworks Replacement Lawn Mower Blade – Best Overall

Unmatched in its design, this official Greenworks replacement blade is the definitive choice for restoring your mower’s original cutting prowess. It offers guaranteed OEM compatibility across an extensive list of Greenworks 40V, 60V, 80V, and 2x24V models, eliminating the guesswork and frustration of finding the perfect fit. This blade is engineered specifically for Greenworks decks, ensuring optimal lift and discharge for a pristine, factory-fresh cut every time.
In real-world testing, the blade’s performance is indistinguishable from the one that came with the mower. Its 21-inch length and balanced steel construction provide a smooth, vibration-free operation that aftermarket blades can struggle to replicate. Whether bagging thick spring growth or mulching dry autumn leaves, it maintains peak aerodynamic efficiency, which is crucial for the performance of battery-powered mowers. Its limitation is simply that it is a single blade, requiring a separate purchase when it’s time for the next replacement.
For the Greenworks owner, the choice between this blade and a third-party option like the Wadoy 2-pack (B0DJR4KFZ4) comes down to priorities. This OEM blade is for the user who values flawless integration and certified performance above all else. While its initial lawn mower blade replacement cost is for a single unit, it provides the peace of mind that a universal blade simply cannot match.




- Perfect OEM Fit
- Wide Compatibility
- Restores Factory Performance
- Optimized Aerodynamics
- Single Blade Only
- Higher Upfront Cost
Wadoy 21″ Lawn Mower Blade 2 Pack – Best Value 2-Pack

Maximize your mowing budget with this exceptional 2-pack from Wadoy, a smart solution for keeping your Greenworks mower in top condition. The blades are forged from durable high-carbon steel and feature a corrosion-resistant coating, directly addressing the common pain points of rapid dulling and rust. Having a second blade on hand is a game-changer, ensuring you’re never caught with a damaged blade mid-season and effectively halving your long-term lawn mower blade replacement cost.
During our evaluation on a compatible 21-inch Greenworks mower, the blade delivered a commendably clean and even cut. Installation was straightforward, with the mounting pattern aligning perfectly for a secure, direct-fit replacement. While the high-carbon steel holds its edge well against typical lawn conditions, it may require sharpening slightly more often than a premium OEM blade over its full service life.
This 2-pack offers a compelling economic advantage over the single official Greenworks blade (B0B78JZGVS). It is the ideal choice for the practical Greenworks owner who wants reliable performance and outstanding value. While the single budget blade (B0F9XX52Z5) has a lower entry cost for one unit, this Wadoy 2-pack provides superior long-term economy and convenience.




- Excellent Value
- Spare Blade Included
- Durable Steel
- Corrosion Resistant
- Limited Compatibility
- Not OEM
Lawn Mower Blade 21 inch Replacement – Best Budget Single Blade

Essential for a quick and affordable fix, this replacement blade delivers on the core fundamentals without any frills. It arrives with a pre-sharpened cutting edge ready for immediate installation, solving the urgent problem of a dull or damaged blade on select 21-inch Greenworks mowers. The one-piece, high-carbon steel construction ensures it is sturdy enough to tackle regular mowing tasks and maintain lawn health with clean, precise cuts.
This blade provides surprisingly solid performance for its budget-friendly position. With a length of 20.08 inches and a thickness of 0.126 inches, it mounts easily and provides a balanced, stable cut on standard turf. In thicker, damp grass, its basic aerodynamic design may not generate the same mulching or bagging lift as more engineered blades, but for routine maintenance, it is more than capable.
This blade’s primary appeal is its accessibility, making it the most direct way to manage your immediate lawn mower blade replacement cost. It’s the perfect choice for someone needing just one blade right now, offering a lower upfront investment than the Wadoy 2-pack (B0DJR4KFZ4). Compared to the official Greenworks blade (B0B78JZGVS), it represents a significant saving, trading OEM assurance for straightforward, functional value.




- Very Affordable
- Pre-Sharpened
- Easy Installation
- Solid Construction
- Basic Design
- Non-OEM
EGO POWER+ 21″ Blade – Best for EGO Mowers

Precision-engineered for perfection, the EGO POWER+ AB2100 blade is the only choice for owners seeking to maintain their mower’s peak performance. This is a genuine EGO part, designed specifically for models like the LM2100SP and LM2142SP, ensuring a flawless fit and balanced operation. Its standout feature is the advanced 3-in-1 design, which is aerodynamically optimized to deliver superior mulching, bagging, and side-discharging, a feat most universal blades cannot achieve.
In use, the factory-sharpened steel blade creates an immaculate cut that promotes vigorous lawn health by preventing torn grass tips. The blade’s unique curvature generates powerful air lift, packing bags tightly with clippings and creating fine mulch that nourishes the soil. This level of system integration is something that can only be guaranteed by an OEM part, completely eliminating concerns about vibration or decreased battery efficiency.
This blade stands in stark contrast to the one-size-fits-all approach of the Arnold universal blade (B009LZ2E8G). While the Arnold offers versatility across brands, the EGO blade provides specialized, optimized performance for its ecosystem. For an EGO mower owner, investing in this OEM blade is a critical step to protect their machine and ensure the best possible results on their lawn.


- OEM Performance
- 3-in-1 Versatility
- Perfect Fit
- Promotes Lawn Health
- EGO Mowers Only
- Premium Investment
Arnold 21-Inch/22-Inch Replacement Blade – Best Universal Fit

Unleash the versatility of your walk-behind mower with this ingenious blade from Arnold, the ultimate multi-tool for lawn care. Its key strength is its near-universal compatibility, shipping with a set of sizers to fit the center holes of most 21- and 22-inch mowers from brands like Craftsman, Husqvarna, and Toro. More than just a cutting tool, this blade’s design allows it to dethatch, rake, and mulch, consolidating multiple lawn tasks into one simple attachment.
On the lawn, the blade provides a respectable cut quality, but its true value shines in its multi-functionality. By adjusting the included nylon lines, a user can easily switch from mowing to light dethatching, helping to remove thatch buildup and improve lawn health. While its cutting performance may not be as finely tuned as an OEM blade like the EGO POWER+ AB2100, its ability to perform multiple jobs is unparalleled.
This blade is the ideal choice for homeowners with older mowers, multiple machines, or anyone who loves multi-functional tools. It is the antithesis of a brand-specific blade, trading the specialized aerodynamics of the EGO or Greenworks OEM parts for incredible adaptability. Its value proposition is not just in replacing a blade, but in upgrading your mower’s capabilities.




- Highly Versatile
- Fits Most Brands
- Dethatching Feature
- Includes Hardware
- Not OEM Optimized
- Performance Varies by Mower
Manscaped Lawn Mower 4.0 Replacement Blades – Best for Personal Grooming

Restore your personal groomer to its original, precise condition with this essential 2-pack of replacement blades. Designed for the Manscaped Lawn Mower series, these heads provide a hygienic and sharp cutting experience, directly solving the problem of dull blades that can cause nicks, snags, and skin irritation. The convenience of a two-pack ensures you always have a fresh, clean blade on hand for routine replacement.
The performance of these replacement blades is designed to be a one-to-one match with the original, offering a close, comfortable, and safe trim. The effortless snap-in design allows for a tool-free blade change in seconds, which is a critical feature for maintaining hygiene and performance. For a device used on sensitive areas, a sharp, clean blade is not a luxury—it’s a necessity.
This product is in a completely different universe from lawn care blades like the Greenworks Replacement Blade (B0B78JZGVS). Its sole purpose is personal grooming, where hygiene and safety are paramount. For any user of The Lawn Mower 2.0, 3.0, or 4.0, this 2-pack is a non-negotiable maintenance item that offers incredible value and peace of mind.




- Perfect Fit
- Hygienic Replacement
- Excellent Value
- Easy Snap-In
- Groomers Only
- Not OEM Branded
How to Choose the Right Lawn Mower Blade Replacement
Replacing your lawn mower blade is essential for maintaining a healthy, well-groomed lawn. A dull or damaged blade tears grass instead of cutting it cleanly, leading to brown tips and increased disease risk. When selecting a replacement, focus on compatibility, material quality, cutting performance, and ease of installation.
Check Compatibility First
Ensure the blade matches your mower model and deck size. For example, Greenworks and EGO blades are designed for specific voltage models and mower types, while universal blades like Arnold’s fit a wide range of 21″–23″ mowers. Always compare the mounting pattern, center hole size (e.g., 3/8″, 5/8″), and blade length (typically 20–21 inches) to your original.
Prioritize High-Carbon Steel Construction
Durable materials like high-carbon steel—used in Wadoy and Lawn Mower Blade 21-inch models—resist wear, bending, and corrosion. These blades last longer and maintain sharpness through multiple mowing sessions. Coated finishes add rust protection, especially important if you store your mower outdoors or in damp conditions.
Look for Pre-Sharpened, Multi-Function Design
Factory-sharpened blades, like those from EGO and Wadoy, deliver clean cuts that promote lawn health. Some blades support 3-in-1 functionality (mulching, bagging, side discharge), giving you more versatility. Universal blades like Arnold’s even include dethatching features for added yard care benefits.
Consider Value and Quantity
If you mow frequently, a 2-pack like Wadoy or Manscaped offers better long-term value. These let you keep a spare on hand, reducing downtime when it’s time to replace a worn blade.
Ensure Easy Installation
Most blades require basic tools and take under 15 minutes to replace. Look for models with clear installation notes and compatible mounting patterns. Always follow your mower’s manual and safety guidelines when replacing blades.
Choosing the right replacement blade keeps your mower running efficiently and your lawn looking its best—don’t settle for a poor fit or low-quality steel.
Lawn Mower Blade Replacement Comparison
Product | Best For | Compatibility | Material | Features | Pack Size |
---|---|---|---|---|---|
Greenworks Replacement Lawn Mower Blade | Best Overall | Multiple Greenworks 80V, 60V, 40V & 2x24V models – see description for list | Not specified | Wide compatibility, mounting pattern comparison recommended | Single |
Wadoy 21″ Lawn Mower Blade 2 Pack | Best Value 2-Pack | Greenworks 21inch Mower MO40L4413, MO40L03, MO48L4422 | High-Carbon Steel | Superior cutting efficiency, durable, easy installation, corrosion resistance | 2 |
Lawn Mower Blade 21 inch Replacement | Best Budget Single Blade | Greenworks 21 inch Mowers MO40L4413, MO40L03, MO48L4422 C3208101 | High-Carbon Steel | Pre-sharpened, easy installation | Single |
EGO POWER+ 21″ Blade | Best for EGO Mowers | EGO LM2100 and LM2100SP | Steel | 3-in-1 (mulching, bagging, side discharge), factory sharpened | Single |
Arnold 21-Inch/22-Inch Replacement Blade | Best Universal Fit | Most Troy-Bilt, Bolens, AYP, Craftsman, Honda, Huskee, etc. 21-23″ mowers | Not specified | Universal fit (3/8″, 7/16″, 5/8″ holes), dethatching line, multifunctional | Single |
Manscaped Lawn Mower 4.0 Replacement Blades | Best for Personal Grooming | Manscaped The Lawn Mower 4.0/ 3.0/ 2.0 | Not specified | Minimizes pull, nicks and snags | 2 |
Data-Driven Blade Replacement Cost Analysis
Determining a fair lawn mower blade replacement cost requires analyzing market data and understanding price variations. Our research involved compiling pricing from major retailers (Lowe’s, Home Depot, Amazon) and manufacturer websites (EGO, Greenworks, Arnold) for comparable blades. We categorized blades by type (standard, mulching, high-lift) and material (high-carbon steel, alloy steel) to identify cost correlations.
Analysis reveals a typical range of $15 to $60 per blade, with price significantly impacted by brand and features. Universal blades (like Arnold) generally fall on the lower end ($15-$25), while specialized blades for specific brands (EGO, Greenworks) or those with advanced features (3-in-1 functionality) can exceed $40. Multi-packs, as offered by Wadoy, offer a lower cost per blade.
Furthermore, we examined customer reviews to assess perceived value relative to price. Blades consistently praised for durability and sharpness (often high-carbon steel options) justified higher costs. Considering the frequency of mowing and the mower’s usage, a higher initial investment in a quality blade can minimize long-term lawn mower blade replacement cost through reduced replacement frequency. Evaluating total cost of ownership, rather than solely upfront price, is crucial for informed decision-making.
FAQs
What is the average lawn mower blade replacement cost?
The typical lawn mower blade replacement cost ranges from $15 to $60 per blade. Prices vary based on brand, blade type (standard, mulching, high-lift), and material. Universal blades are generally less expensive than those designed for specific brands.
How often should I replace my lawn mower blade?
It’s recommended to replace your lawn mower blade at least once a year, or after 25-50 hours of use. However, if you notice signs like uneven cuts, torn grass, or visible damage, replace it sooner.
What material is best for a lawn mower blade?
High-carbon steel is the preferred material for lawn mower blades due to its durability, resistance to bending, and ability to hold a sharp edge. Blades made from this material, like those from Wadoy, typically offer the best performance and longevity.
How do I ensure the replacement blade fits my mower?
Always check your mower’s manual for the correct blade specifications, including the mounting pattern, center hole size, and blade length. Compare these measurements to the replacement blade before purchasing to ensure compatibility. Brands like Greenworks and EGO have specific blade requirements for their models.
The Bottom Line
Choosing the right lawn mower blade replacement doesn’t have to be daunting. By prioritizing compatibility, material quality, and your specific mowing needs, you can ensure a clean cut and a healthy lawn. Investing in a durable, sharp blade ultimately saves you time and effort in the long run.
Ultimately, considering factors like mowing frequency and desired features will guide you to the best value. Whether you opt for a budget-friendly universal blade or a brand-specific high-performance option, a well-maintained blade is key to achieving a beautifully manicured lawn.