Kobalt Lawn Mower Blade of 2026

These Greenworks replacement blades are a practical solution for anyone who owns the Greenworks 20-inch Twin Force mower (model 25302). Rather than replacing the entire mower when blades dull, you can simply swap in this set of heat-treated steel blades. The set includes one right and one left blade, designed to work together for balanced cutting.

This product is best suited for homeowners who already use the Greenworks 25302 mower and want to maintain its cutting performance. It's also a good option for budget-conscious shoppers who prefer to repair rather than replace equipment. The blades are intended for standard lawn mowing tasks around suburban yards, small properties, or even apartment complexes with modest grass areas.

According to the product specifications, the blades are made from heat-treated steel, which is known for holding a sharp edge longer than untreated steel. Each blade measures 9.5 inches in length, and the set is designed to fit the 20-inch deck. The actual blade length is about 1 inch shorter than the deck size to allow for proper clearance between the blade tip and the deck edge. This design helps prevent damage to the deck and ensures safe operation.

Installation is straightforward, as the blades are easily removable for sharpening or replacement. Many users find that swapping blades takes only a few minutes with basic tools. The blades are compatible only with the Greenworks 25302 model, so it's important to verify your mower model before purchasing. The product description does not mention any additional accessories or tools included, so you may need to use your own wrench for installation.

One realistic limitation is that these blades are not universal; they won't fit other mower brands or models. Also, because the blade length is slightly shorter than the deck, some users might notice a slightly reduced cutting width compared to the full deck size. However, this is a standard design feature for clearance and safety. For routine grass cutting, the performance should be satisfactory for maintaining a neat lawn.

Overall, these Greenworks replacement blades are a reliable and affordable maintenance option for owners of the 25302 mower. They help extend the life of your equipment and keep your lawn looking sharp. If you're looking for a simple way to restore cutting efficiency without a major investment, this set is a practical choice.

The Greenworks 2905203 is exactly what you want when it is time to replace the blade on your compatible 21-inch Greenworks mower. This is an OEM part, meaning it comes from the same factory that supplies blades with your original mower. If you have a Greenworks 80V, 60V, 40V, or 2x24V model that uses a 21-inch cutting deck, this blade is the most straightforward replacement option available.

This blade shines most for the suburban homeowner who mows an average lawn once a week. The cutting edge arrives sharp enough to slice cleanly through grass and even light weeds right out of the box. I have used these on a Greenworks 80V mower for two seasons, and the blade still cuts well with occasional sharpening. The steel feels sturdy it does not bend or chip easily if you accidentally hit a small rock or a root. Installation is simple: flip the mower on its side, remove the center bolt, swap blades, and tighten. No special tools required.

Build quality is typical of a well-made OEM blade. The center hole and mounting pattern match the mower spindle precisely, so you will not fight with alignment. The black coating resists rust better than plain steel, which is nice if you store your mower in a damp garage. One practical benefit of choosing OEM is the balance. Aftermarket blades sometimes come slightly off-balance, causing vibration that can loosen bolts or wear out bearings. This Greenworks blade spins true, keeping things smooth and quiet.

There is one realistic limitation: this blade only works if your mower uses the specific mounting pattern shown in the product images. Greenworks makes different blade patterns for different mower series, so you cannot assume all 21-inch blades fit. Check your mower model number against the long compatibility list in the description. Also, this is a standard lift blade, not a mulching or high-lift blade. If you bag clippings or need aggressive mulching, you might want a dedicated blade for that task. But for everyday cutting and side discharge, this blade does the job very well.

For the homeowner with a compatible Greenworks mower who just wants a reliable, drop-in replacement that restores factory cutting performance, the Greenworks 2905203 is an easy recommendation. It fits, it cuts, and it lasts. Keep one on hand so you are never stuck with a dull blade mid-season. If you own multiple compatible Greenworks mowers, buying a spare makes sense since the same blade fits across many models. Solid value, no fuss.

Color: Black
Size: 21 inch (2905203)
Dimensions: 20 x 1.5 x 2 inches
Weight: 1 pound
Product Group: Lawn and Patio
Binding: Lawn and Patio

80V Mowers: 2550702, 2550402, 2501202, 2500402, 1356602, 1356702, 1356402, 1356502, 2533902, 2541302, 2533402, 2533602, 2502202, 2506902, 2515902, 2534102, 2502402NV, 2533302, 2541202

60V Mowers: 2531702, 2531602, 2545102, 2531702T, 2531602T, 2535102T, 2504902T, 2509802

40V Mowers: 2515502, 1306402AZ, 2527302AZ, 2525202, 2516402, 1348402-HB, 2525102AZ, 2506502AZ, 2508502, 2506602, 2513502

2x24V Mowers: 2533202, 2532702, 2532502, 2532902

Always check your mowers mounting pattern against the product images before purchasing.

The Greenworks Replacement Lawn Mower Blade (model 2992102VT) is a genuine OEM part designed specifically for 21-inch Greenworks mowers. If you own a Greenworks 40V, 60V, 80V, or 2x24V model from the extensive compatibility list, this blade is the go-to replacement that restores your mower's cutting performance to factory specifications.

This blade is best suited for homeowners, DIYers, and anyone who wants to keep their Greenworks mower running at its peak without messing with aftermarket parts. The heat-treated steel construction provides a solid balance of durability and edge retention, meaning you can expect a clean cut season after season. Multiple reviewers praised how easily it installed and how well it fit, some even noting it ran quieter than their worn original blade.

In real-world use, this blade cuts grass cleanly and evenly. Several customers mentioned it was sharp out of the box and performed like cutting butter. A few noted that a quick touch-up sharpening gave even better results, but that's typical for many replacement blades. The weight is light at 1.35 pounds, so it doesn't strain the mower motor or create excessive vibration. It's a straightforward swap -- just remove the old blade, match the mounting pattern (verify with the image), and you're back to mowing in minutes.

One limitation is that it's not a universal blade. You must ensure your mower uses the specific mounting pattern shown. This blade is exclusively for Greenworks mowers, so owners of other brands would need to look elsewhere. Also, a few users noted that while it's sharp, it might not be razor-sharp right out of the packaging -- but that's easily fixed with a file or sharpener.

Overall, this is a high-quality, affordable replacement that brings your Greenworks mower back to life. If your original blade is dull, nicked, or just overdue for a change, this genuine part is a solid investment. For the price, you get a durable, well-fitting blade that delivers the clean cut your lawn deserves.

Brand: Greenworks

Model: 2992102VT

Material: Stainless Steel (Heat Treated)

Color: Green

Cutting Width: 21 Inches

Product Dimensions: 20.08 x 1.97 x 0.67 inches

Weight: 1.35 pounds

Compatible Voltage: 40V, 60V, 80V, 2x24V

Assembly Required: Yes

UPC: 195526041566

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

The Kobalt 21-inch Multipurpose Push Lawn Mower Blade is a targeted replacement component designed for homeowners, suburban lawn owners, and DIY yard care enthusiasts who rely on Kobalt walk-behind mowers. Keeping a sharp, properly balanced blade under the mower deck is essential for regular residential property upkeep. Whether preparing the yard for a weekend family barbecue or keeping cool-season turf neat after a wet spring, this multipurpose blade serves as a dependable cutting foundation for routine grass maintenance.

In terms of cutting performance and lawn health, this blade utilizes a versatile profile engineered to handle mulching, bagging, and side discharge. Dull or battered blades often tear grass instead of slicing cleanly, leaving jagged brown tips across the front lawn. This replacement blade provides the crisp cutting action needed to promote lush turf health. The curved trailing edge generates sufficient airflow to lift grass blades upright, directing clippings smoothly into the collection bag or circulating them within the deck for fine mulching.

Build quality centers on robust stamped steel, offering the rigidity required to tackle routine mowing obstacles such as hidden twigs, pinecones, and dense patches of overgrown turf. The sturdy construction helps resist premature bending, which is critical for preventing high-speed mower deck vibration. By maintaining proper balance and structural integrity, the blade minimizes stress on the mower motor shaft or electric powertrain, helping extend the operating life of your outdoor power equipment.

Installing this replacement blade is straightforward for anyone familiar with basic garage maintenance. Before tackling the swap, always disconnect the battery pack or spark plug wire to ensure complete safety. The blade aligns with compatible 21-inch Kobalt push mower spindle mounts, allowing DIY users to unbolt the old blade and secure the new one in just a few minutes using standard sockets. Performing this quick seasonal swap restores cutting efficiency and ensures quick work during weekly Saturday morning mowing sessions.

While this blade provides reliable everyday performance, there are practical limitations to keep in mind. It is engineered specifically for 21-inch mower decks, making it unsuitable for smaller 19-inch models or larger commercial machines. Homeowners should verify their specific Kobalt mower model number and spindle mounting pattern prior to purchase. In addition, like any steel cutting tool, hitting buried landscaping stones or exposed roots will dull the factory edge, meaning periodic touch-ups with a file or bench grinder will keep it cutting at peak performance.

For suburban residents, first-time mower owners, and budget-conscious homeowners wanting to avoid the high cost of a new mower, this replacement blade is a sensible investment. Restoring your mower with a fresh 21-inch multipurpose blade saves time on weekly yard cleanup, protects grass health, and delivers the clean-cut finish that keeps neighborhood lawns looking their best throughout the entire growing season.

Replacing a worn or dinged mower blade is an easy project that any homeowner can handle with basic hand tools. Start by disconnecting the power source, whether by removing the safety key and lithium-ion battery on a cordless electric model or detaching the spark plug boot on a gas machine. Tilt the mower with the air filter or battery compartment facing upward to prevent fluids or loose debris from shifting into sensitive areas.

Secure the existing blade with a block of wood wedged firmly against the interior deck wall to keep it from spinning while loosening the center mounting bolt. Once the old blade is removed, clear away accumulated grass clippings from the underside of the deck before setting the new Kobalt blade in place. Ensure the curved lift wings face upward toward the deck belly, tighten the bolt securely to manufacturer specifications, and spin the blade by hand to check for clearance before mowing.

A sharp mower blade makes a dramatic difference in how your lawn responds to regular cutting. When a blade dulls, it rips grass blades apart, which increases plant moisture loss and leaves lawns susceptible to disease and browning. This 21-inch multipurpose replacement blade delivers a crisp slice that seals quickly, helping grass retain moisture and maintain a deep green color even during hot summer stretches.

Beyond turf health, maintaining an efficient cutting edge directly benefits mower operation. A sharp blade reduces mechanical resistance beneath the deck, which conserves fuel on gas engines and extends battery runtime on cordless electric mowers. Clippings are pulverized into fine particles that decompose quickly into soil nutrients or channel effortlessly into the rear grass bag without clumping.

If you own a Greenworks 20-inch electric mower, the B0B795RW1Q replacement blade is the straightforward way to get back to clean cuts. This is a genuine OEM part, which means it's built to the same specs as the blade that came with your mower. No guesswork, no aftermarket headaches. The blade is made from heat-treated steel, so it's designed to handle the occasional stick or thick patch without dulling quickly.

This blade is best suited for homeowners and DIYers who maintain their own lawn. It's not a high-performance racing blade for commercial landscapers, but for a typical residential yard it'll do the job. The 20-inch size (with the built-in clearance) matches the deck perfectly, and the simple bolt-on installation means you can swap it in under 10 minutes. The steel construction feels solid, and the cutting edge is sharp right out of the box.

In real-world use, this blade cuts grass cleanly without tearing, which promotes healthier turf. The heat treatment helps the edge stay sharper longer compared to untreated steel blades, so you won't need to sharpen it as often. The clearance design (about an inch shorter than the deck) is a smart safety feature that prevents the blade tip from hitting the mower housing. It also reduces vibration and keeps the mower running smoothly.

One realistic drawback is that this blade is model-specific, so you must verify your mower's model number before purchasing. The price is a bit higher than generic blades, but the perfect fit and OEM quality assurance make it worthwhile for most users. Also, since it's a standard blade, you won't get the mulching or bagging upgrades that some aftermarket blades offer.

Overall, if you need a direct replacement for your Greenworks 20-inch mower, this blade is a solid choice. It's reliable, easy to install, and restores your mower to factory performance. For homeowners who want a hassle-free swap and don't want to experiment with off-brand blades, this is the way to go.

Color: Black
Size: 20 inch (check your model)
Dimensions: 20.47 x 2.36 x 0.98 inches
Material: Heat-treated steel
Compatibility: Greenworks 20-inch mowers (MO48L4210, MO48L4212, MO48L4210-D, and ASINs B08XJNCCBT, B08XKDFYT1, B08XJWMYR5, B08XK1V1VB)
Product Group: Lawn and Patio