Pulsar 21 Inch Lawn Mower Blade Replacement of 2026

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

The EGO POWER+ AB2100 replacement blade is a genuine OEM part built specifically for EGO's line of 21-inch cordless mowers, including the LM2100, LM2101, LM2102SP, LM2100SP, and LM2142SP models. This is not an aftermarket clone but a factory-engineered blade designed to restore or even improve your mower's cutting performance. Whether you are a homeowner maintaining a suburban lot or a property manager handling multiple lawns, this blade delivers consistent, reliable results.

In real world use, the standout feature is suction. Many users report that this blade dramatically improves lift, pulling up matted grass and leaves that older blades simply blow over. It handles bagging, mulching, and side discharge equally well thanks to its true 3-in-1 design. The factory-sharpened steel cuts cleanly, reducing frayed grass tips that can turn brown after mowing. It also powers through fall leaf cleanup with ease, allowing you to skip raking entirely in many cases.

Build quality is solid. The blade is robust enough to handle rocky terrain and occasional hidden debris without bending or chipping prematurely. Installation is straightforward, a simple bolt-on process that takes minutes. Just be sure to install it with the cutting edge facing the right direction. A common mistake is mounting it backward, which kills suction and performance.

There are a few trade-offs to consider. Because this blade generates more lift, it does create more noise than the standard blade. It also consumes more battery power, especially when cutting thick, tall grass. Some users note the factory edge is not perfectly sharp out of the box and recommend a quick pass with a file or sharpening stone before first use. However, these minor drawbacks are easily outweighed by the performance gains.

Overall, the EGO AB2100 is an excellent upgrade for any compatible EGO mower. If you have been disappointed by poor bag fill or stragglers left behind, this blade is the fix. It is a worthwhile investment for homeowners who want a crisp, clean cut and efficient leaf management without moving up to a gas mower.

Brand: EGO Power+

Model Number: AB2100

Blade Type: 3-In-1 Mulching, Bagging, Side Discharge

Cutting Width: 21 Inches

Material: Factory Sharpened Steel

Item Weight: 1.1 Pounds

Compatible Mower Models: LM2101, LM2100, LM2102SP, LM2100SP, LM2142SP

Assembly Required: No

UPC: 692042006142

This blade is ideal for homeowners with medium to large lawns who want the convenience of a single blade for all mowing tasks. It excels at bagging clippings in thick grass and mulching leaves in the fall. It also works well for those who maintain rental properties or small commercial lawns with EGO mowers, providing reliable performance across varied terrain.

The EGO POWER+ 21-inch Mulching Blades (AB2101D) are a direct replacement for the lower blade in EGO's Select Cut multi-blade system. Designed specifically for 56-Volt cordless mowers like the LM2133, LM2130, LM2135SP, LM2130SP, LM2156SP, and LM2150SP, this two-pack gives you a spare ready to go. The upper blade is also included in the set, so you get the complete pair needed for the dual-blade setup.

For homeowners who take pride in their lawn, these blades are a solid upgrade. The mulching performance is top-notch, turning grass clippings and even dry leaves into a fine powder that settles into the turf. That means less bagging and more natural fertilization. The all-steel construction feels robust, and the blades come sharp out of the box. Installation is straightforward: remove the old blade, swap in the new one, and torque it down. Most users report the whole job takes about 10 minutes with a basic socket set.

That said, there are a couple of things to keep in mind. The blades do not come with new bolts or nuts, so you will need to reuse the originals or buy replacements. Some reviewers mention the blades can get dinged up faster than traditional gas mower blades, especially if you hit sticks or rocks. For a small yard with clean grass, they hold up fine for a full season. But if you routinely mulch over leaves or debris, plan on changing them once a year to maintain peak performance.

Overall, the EGO mulching blades deliver exactly what they promise: a clean, fine cut that keeps your lawn looking great without the hassle of bagging. They are a no-brainer for anyone already invested in the EGO 56-Volt platform who wants the best mulching results from their Select Cut mower. Just grab a set of bolts if you do not have spares, and you will be set for the season.

Product Dimensions: 20.2 x 1.97 x 0.79 inches

Item Weight: 2.59 pounds

Material: All steel

Compatibility: EGO POWER+ 56-Volt Select Cut Mowers: LM2130, LM2133, LM2130P, LM2135SP, LM2150SP, LM2156SP

Included: 1 lower mulching blade + 1 upper blade (2 blades total)

Nuts and bolts not included

If you're looking for replacement mower blades that punch above their weight, the UDC Parts 942-0741A 21-inch mulching blades are a solid choice. These are aftermarket replacements designed to fit a huge range of push mowers from brands like Troy Bilt, Craftsman, MTD, Cub Cadet, Yard Machines, and many more. The 2-pack gives you a spare right off the bat, which is handy for busy mowing seasons.

These blades are best suited for homeowners and DIYers who maintain their own lawns and want a clean, mulched finish without bagging. They're not aimed at commercial landscapers running zero-turn mowers - these are for standard 21-inch walk-behind mowers. But for that audience, the performance is excellent. Users consistently report a whisper-quiet cut that's actually smoother than their original blades. The mulching action is aggressive; clippings get chopped into fine pieces that disappear into the lawn, leaving no piles or streaks. Even in slightly overgrown grass, these blades handle the job without bogging down.

Build quality is a strong point. The blades are made from high-strength steel that feels thicker and heavier than the stock blades on many mowers. They hold their edge well over several mows, and the coating resists rust. Installation is straightforward - the center hole is a bow-tie shape, and the outer holes align with most spindles. Just remember to use a torque wrench to spec the bolt (most mowers call for 30-40 ft-lbs). The blade length is exactly 21 inches diagonal, with a cutting edge length of about 6 inches, so you get good overlap across the deck.

One realistic downside is the high-lift design. It creates a strong vacuum under the deck, which is great for lifting grass and shredding clippings, but it can also suck up loose objects like small sticks, rocks, or even a garden hose if you accidentally run over it. A few reviewers mentioned this, so it's worth being careful around debris. Also, these blades are not intended for bagging or side-discharge setups - they are optimized for mulching. If you need to switch to bagging, you might want a different blade.

Overall, the UDC Parts 942-0741A blades offer exceptional value for the money. They outperform many OEM blades in cut quality and noise reduction, and they fit an absurdly wide range of mowers. For homeowners who want a manicured lawn with less effort, these are a no-brainer. Keep a spare set handy, and you'll be set for a couple of seasons.

Blade Length: 21 inches (measured diagonally)

Blade Width: 2-1/4 inches

Thickness: 0.126 inches

Center Hole: Bow-tie shape

Side Hole: 5/16 inch

Center to Center Outside Hole: 2-1/2 inches

Air Lift: 1-7/64 inches

Cutting Edge Length: 6-7/64 inches

Compatible Deck Size: 21 inches

Package Weight: 3.37 pounds

Manufacturer: UDC Parts

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.