4 Best Mulching Lawn Mower Blades for 2026

You mow the lawn, but instead of a clean cut, you’re left with clumps of grass smothering the turf. It looks bad, and it’s worse for your lawn. Standard blades often can’t handle the volume of clippings, leaving behind a mess that blocks sunlight and invites disease.

A quality mulching blade changes that. It uses a curved design and a sharper cutting edge to chop clippings into tiny pieces that settle into the soil, returning nitrogen back to the roots. The right blade can save you time on bagging and improve lawn health, but only if it fits your specific mower deck and matches how you cut.

We’ve tested and compared four of the most reliable mulching blades on the market, from OEM replacements to universal options. Whether you need a direct fit for a push mower or a heavy-duty blade for an electric model, this guide breaks down what works best, what to watch out for, and how to get the most from your purchase.

Here’s a quick look at how the top picks compare across the specs that matter most.

Features	Maxpower 331528B	EGO AB2101D	Grasscool 942-0741A	Maxpower 331981B
Best For	MTD, Cub Cadet, Troy-Bilt	EGO Select Cut mowers	Troy-Bilt & MTD models	Universal 21-inch decks
Center Hole	Bow tie (5/16 in.)	EGO-specific design	Bow tie (5/16 in.)	1 in. round
Build Type	OEM replacement steel	All-steel heavy duty	Exact OEM replacement	Universal with reducing washers
Quantity	1 blade	2-pack	1 blade	1 blade
Key Feature	USA made, precise fit	Select Cut lower blade	High-volume clipping lift	Fits most push mowers

In this article

1. Maxpower 331528B USA MADE
   1. Maxpower 331528B USA MADE 21" Cut Mulching Blade | For 21" Cut MTD/Cub Cadet/Troy-Bilt Mowers, Replaces 742-0741, 942-0741, CMXGZAM100067
2. EGO POWER+ 21″ Mulching B
   1. EGO POWER+ 21" Mulching Blades for Electric Lawn Mowers LM2133/LM2130/LM2135SP/LM2130SP/LM2156SP/LM2150SP, 2-Pack - AB2101D
3. Grasscool 942-0741A Troy
   1. Grasscool 21 inch Mower Mulching Blade for Troy Bilt 942-0741A TB130 TB240 | TB110 TB230 TB200 TB130XP TB160 TB210 TB320,Walk-Behind Push Self-Propelled MTD 21'' Lawn Push Mowers,Craftsman M250 M230
4. Maxpower 331981B 21-Inch
   1. Maxpower 331981B 21-Inch Universal Gold Metal Mulching Lawn Mower Blade | For 21 in. Cut Mower Blade
5. How We Chose These Products
6. Buying Guide: What Really Matters
7. Our Top Recommendation
8. Frequently Asked Questions

Maxpower 331528B USA MADE

This blade is the direct replacement for a huge range of MTD, Cub Cadet, and Troy-Bilt walk-behind mowers. It’s the one you buy when you know your OEM part number and just want a like-for-like swap. The steel is heat-treated, and it’s made in the USA, which matters if you’ve had trouble with cheap imports bending on rocks.

The bow tie center hole pattern locks onto the drive adapter securely. It fits a massive list of models, from the Cub Cadet SC100 series to the Troy-Bilt TB130 XP. If you own one of those common push mowers, this blade is a safe bet. It handles dry grass well and does a decent job with leaves, though it’s not a dedicated high-lift leaf shredder.

One limitation is that it’s a single blade, so you might need to buy two if you want a spare. Also, the fitment list is long, but you still need to verify your mower’s OEM number before ordering. Getting this wrong means the blade won’t sit flush, causing vibration.

• Replaces OEM numbers 742-0741, 942-0741A, and 942-04276
• Fits 21-inch cut decks from MTD, Cub Cadet, and Craftsman
• Bow tie center hole with 5/16-inch outer holes
• Made in the USA from heat-treated steel
• Single blade, 21 inches long and 2.5 inches wide

Best for: Owners of MTD or Cub Cadet push mowers who want a dependable, direct OEM replacement without paying dealer prices.

EGO POWER+ 21″ Mulching B

This two-pack is built specifically for EGO’s Select Cut mower system, including the LM2130SP and LM2156SP models. It’s the lower blade in that two-blade setup, meaning it does the primary cutting work. If you’ve noticed your EGO leaving uncut strips or tearing grass, this is likely the part you need.

The all-steel construction is a step up from some thinner OEM blades. It handles damp grass better than you’d expect from an electric mower blade, and the mulching action is aggressive. Since it comes as a two-pack, you get a spare right away, which is convenient because these blades wear down faster on taller grass.

The main drawback is compatibility. This blade only fits the specific EGO models listed, so it won’t work on a gas mower or older EGO units. Availability can also be spotty, so if you see it in stock, it’s worth grabbing. It’s a dedicated mulching blade, so don’t expect great performance if you switch to bagging.

• Compatible with EGO LM2130, LM2133, LM2135SP, LM2150SP, and LM2156SP
• Two blades included in the pack
• Interchangeable lower blade on the Select Cut system
• All-steel build for durability
• Designed for mulching and bagging modes

Best for: EGO Power+ Select Cut owners who need a factory-matched replacement and want a spare on hand.

Grasscool 942-0741A Troy

Grasscool positions this as an exact OEM replacement for the 942-0741A, which is a common part number across Troy-Bilt, MTD, and Craftsman mowers. It’s built for 21-inch decks and handles the same model range as the Maxpower, but it markets itself on precise fitment and performance in tough conditions.

What stands out here is the blade’s ability to handle less-than-ideal mowing situations. It manages weedy lawns without leaving seed heads, and it won’t clog up when the grass is damp. The cutting edge is designed to create more lift, pulling clippings up for a second cut before they fall. That results in finer clippings that break down faster.

It’s a solid blade, but it’s not dramatically different from the Maxpower equivalent. You’re paying for the Grasscool brand and the promise of exact fitment. Double-check your model number, because while it fits many, there are exceptions in the MTD lineup that use a different drive plate.

• Exact replacement for OEM 942-0741A and 742-0741
• Fits Troy-Bilt TB100 through TB490 XP series
• Works on Cub Cadet SC and CC series mowers
• Handles damp grass and debris without clogging
• Single blade, 21-inch cut

Best for: Homeowners with a Troy-Bilt or MTD mower who often cut grass that’s slightly wet or has heavy weed growth.

Maxpower 331981B 21-Inch

This is the universal option. It fits almost any 21-inch push mower because it includes a set of reducing washers that adapt the center hole to different sizes. If you’re not sure about your mower’s specific part number, this blade removes the guesswork.

The universal design works well for older mowers or off-brand models that are hard to find parts for. The gold coating resists rust and helps grass slide off the blade, which keeps the cut cleaner. It comes with a cover washer and six reducing washers, so you have everything you need for installation right out of the box.

The trade-off is that a universal fit is rarely as precise as an OEM blade. You might notice slight vibration if the washers don’t perfectly center the blade. It also doesn’t offer the same aggressive lift as a model-specific blade, so it’s better for regular mowing than for shredding heavy leaf piles.

• Universal fit for 21-inch cut mowers
• 1-inch center hole with six reducing washers
• Includes cover washer for secure mounting
• Gold metal finish resists corrosion
• Made in the USA

Best for: Owners of generic or older mowers who need a blade that fits without hunting down a specific OEM part number.

How We Chose These Products

We started with fitment. A mulching blade that doesn’t match your deck is useless, so we focused on products that cover the most common mower brands and models. We prioritized blades with clear OEM replacement numbers and verified compatibility lists over vague claims.

We also weighed build quality and real-world performance. Heat-treated steel and a design that actually lifts and recuts clippings matter more than a fancy coating. We looked at what owners say about clogging, cutting wet grass, and how long the edge lasts. The final list includes options for gas and electric mowers, plus a universal pick for oddball decks.

Buying Guide: What Really Matters

Mulching performance comes down to blade geometry. The curved shape and the angle of the cutting edge create a vacuum that pulls grass up. That vacuum effect is what lets the blade cut the same clipping multiple times. A flat or dull blade won’t create that airflow, so you get clumps no matter how sharp it is. Look for a blade with a pronounced curve and a clean, sharp edge.

Material matters for longevity. Most quality blades use heat-treated steel, which holds an edge longer and resists bending. Cheaper blades can dull after a few mows or warp if you hit a rock. If you mow a large property or have rough ground, spending a bit more on a thicker blade saves money over time.

Don’t ignore the center hole pattern. Some mowers use a bow tie shape, others use a round hole with a specific diameter. The reducing washers on universal blades help, but they can’t fix a mismatch in the drive adapter. Always check your mower’s manual or the old blade before ordering.

Our Top Recommendation

The Maxpower 331528B is our top pick for most homeowners. It covers the most common mower brands, it’s made in the USA, and it delivers the precise fit that universal blades can’t match. You don’t need to fiddle with washers or worry about vibration. It just works.

If you own an EGO mower, the EGO AB2101D two-pack is the obvious choice. For a budget-friendly universal option, the Maxpower 331981B is a reliable fallback. The Grasscool is a fine alternative if you find a better price on it than the Maxpower, but the performance is similar.

Frequently Asked Questions

How often should I replace my mulching blade?
You should replace it when the cutting edge is nicked or rounded, typically after 20-25 hours of use. Sharpening can extend life, but once the blade is bent or the edge is too thin, replacement is safer.

Can I use a mulching blade to bag grass?
Yes, but it’s not ideal. Mulching blades create more lift, which can push clippings up into the bag, but they don’t pull as hard as a dedicated high-lift bagging blade. You’ll get a fuller bag, but you might need to empty it more often.

Why does my new blade still leave clumps?
You’re likely cutting grass that’s too tall or too wet. Mulching works best when you cut no more than one-third of the grass height at a time. If the grass is damp, the clippings stick together. Try mowing more often and waiting for the grass to dry.

What torque should I use when installing a blade?
Most 21-inch mowers need between 30 and 50 foot-pounds of torque. Overtightening can strip the adapter, and undertightening lets the blade slip. Always check your mower’s manual for the specific spec.