Best New Blade For Lawn Mower: Compare 10 Replacement Options

#1 · Best Overall

1. MaxPower 331528B

• Dimensions: 23 x 4 x 2 in
• Weight: 1.6 lb

Best for: 21-inch mulching replacement.

Why it ranks #1: The 21-inch mulching blade fits many listed MTD, Cub Cadet, Troy-Bilt, and Craftsman mowers and names multiple replacement OEM numbers.

A 21-inch mulching blade with a bow-tie center hole gives owners of many MTD, Cub Cadet, Troy-Bilt, and Craftsman mowers a replacement matched to a broad set of listed OEM numbers. Its specific mower-family coverage makes checking the existing blade number the key step before choosing it.

The 21-inch length and 21⁄4-inch width identify the blade size, while the bow-tie center hole is a useful detail to compare with the mower’s existing blade. Replacement coverage includes several MTD, Cub Cadet, Troy-Bilt, and Craftsman OEM numbers, including Craftsman CMXGZAM100067, so owners can use the listed number cross-reference to narrow compatibility. The package contains one mulching blade, making it a single-blade replacement rather than a multi-blade deck set.

Skip it if you need a blade for a mower outside the listed applications; Greenworks 2905203 covers specified Greenworks 21-inch mowers.

Choose this single blade if your 21-inch MTD, Cub Cadet, Troy-Bilt, or Craftsman mower matches a listed application. Its mulching purpose and bow-tie center hole make the current blade number and hole shape important fit checks.

Listed on Amazon as: Maxpower 331528B USA MADE 21" Cut Mulching Blade

#2 · Best 3-in-1 Blade

2. EGO Power+ AB2100

• Dimensions: 30"D x 8"W x 6"H
• Weight: 1.1 lb
• Material: Factory Sharpened Steel Blade

Best for: EGO 3-in-1 mowing flexibility.

Why it ranks #2: This factory-sharpened steel blade supports mulching, bagging, and side discharge on listed EGO 21-inch mower models.

Mulching, bagging, and side discharge in one 3-in-1 blade give compatible EGO mower owners options for handling clippings without switching blade types. The factory-sharpened steel blade is listed for specific EGO 21-inch mower models, making model compatibility central to the choice.

The 3-in-1 configuration supports mulching, bagging, or side discharge, so the same replacement blade can serve different listed clipping-management approaches. Factory-sharpened steel and the stated clean-cut purpose connect its ready-sharp specification with the intended lawn finish. EGO identifies the blade for LM2100, LM2100SP, LM2101, LM2102SP, and LM2142SP in the title; check the mower model rather than relying on the 21-inch size alone.

Skip it if you need a blade for a non-EGO mower; Greenworks 2905203 lists compatible Greenworks 21-inch models.

A good match for EGO owners who want one blade for mulching, bagging, or side discharge on a listed mower. Confirm the exact LM model before selecting it, since the listed fit is specific to EGO equipment.

Listed on Amazon as: EGO POWER+ 21" Blade for Electric Lawn Mowers LM2101/LM2100/LM2102SP/LM2100SP/LM2142SP – AB2100

#3 · Best 21-Inch Fit

3. Greenworks 2905203

• Dimensions: 20.08"D x 0.67"W x 1.97"H
• Weight: 16 oz
• Material: Alloy Steel

Best for: Greenworks 21-inch mower owners.

Why it ranks #3: This genuine heat-treated steel blade is made for Greenworks 21-inch mowers, with compatibility listed across selected 80V, 60V, and 40V models.

Compatibility across specified Greenworks 80V, 60V, and 40V mower models is the defining feature of this 21-inch replacement blade. That voltage-platform coverage lets owners check a model number against the long supplied list rather than treating every Greenworks 21-inch mower as interchangeable.

The alloy-steel blade is described as heat-treated, combining its stated material and treatment with a genuine Greenworks replacement identity. Its 21-inch mower compatibility spans numerous listed 80V, 60V, and 40V models, which helps owners narrow the match by mower model and voltage platform. The supplied dimensions are 20.08 by 0.67 by 1.97 inches; those measurements and the compatibility list are practical references when comparing it with the existing blade and mower documentation.

Skip it if you own a Greenworks 20-inch mower; Greenworks 2992002VT is specified for selected 20-inch models.

This suits Greenworks owners seeking a replacement for a compatible 21-inch mower across the listed voltage platforms. Check the exact mower model against the supplied compatibility list; the 21-inch description alone does not establish fit.

Listed on Amazon as: Greenworks 2905203, Blade for 21” Mower, Black

#4 · Best 20-Inch Fit

4. MTD 490-100-M088

• Weight: 1.5 lb
• Material: Metal

Best for: MTD 20-inch walk-behind mulching.

Why it ranks #4: The 3-in-1 mulching blade fits MTD 20-inch walk-behind mowers from 1997 onward and lists several MTD-family brands and OEM numbers.

A 3-in-1 mulching blade for MTD 20-inch walk-behind mowers from 1997 onward is the defining fit and function here. Its coverage also names MTD Gold, Yard Man, Yard Machines, Troy-Bilt, Bolens, White Outdoor, and Huskee products, with OEM numbers to check against the existing blade.

The 3-in-1 blade is specified for mulching and uses a 1-inch star center, details that connect its clipping function with a practical mounting check. The listed mower coverage spans several MTD-related brands, and the replacement references are OEM 742-0740 and 942-0740. Those application and part-number details help owners verify whether this single metal blade matches a 20-inch walk-behind mower; the product information does not describe it as a universal 20-inch replacement.

Skip it if you need a blade for a Greenworks 20-inch mower; Greenworks 2992002VT lists selected Greenworks 20-inch models.

Consider this for a listed MTD-family 20-inch walk-behind mower when the 3-in-1 function and 1-inch star center match your existing setup. Check the mower’s brand, application, and OEM reference; the 20-inch label alone is not enough.

Listed on Amazon as: MTD Genuine Parts Mulching Blade – For 20-Inch Lawn Mowers (1997 and After) – Fits Various MTD Gold, Troy-Bilt, and Other Top Models, (490-100-M088)

#5 · Best 22-Inch Mulcher

5. MaxPower 331749XB

• Dimensions: 22.5 x 2.5 x 0.13 in
• Weight: 15.8 oz

Best for: 22-inch commercial mulching use.

Why it ranks #5: This commercial mulching blade is sized for some 22-inch-cut Craftsman, Husqvarna, and Poulan mowers, with a five-point star center hole.

A commercial mulching blade with a greater cutting surface is the defining feature of MaxPower’s replacement for some 22-inch-cut Craftsman, Husqvarna, and Poulan mowers. Its 5-point star center hole and listed OEM numbers provide concrete checks for buyers matching an existing blade.

The blade measures 21 15/16 by 21⁄2 inches and uses a 5-point star center hole, details that can help verify size and mounting style against the mower’s original part. MaxPower describes its commercial mulching blades as having greater cutting surface for increased mulching, tying the blade style to its intended clipping use. One blade is included, and the supplied OEM references cover selected Craftsman, Husqvarna, and Poulan applications rather than all 22-inch decks.

Skip it if you need a blade for an MTD or Cub Cadet 50-inch deck; Oregon 653520 lists those applications and deck size.

This suits owners of a compatible Craftsman, Husqvarna, or Poulan mower seeking a commercial mulching replacement. Check the 5-point star center and listed OEM numbers, because the 22-inch-cut description does not cover every mower with that deck size.

Listed on Amazon as: MaxPower 331749XB Commercial Mulching Blade for 22 in. Cut Craftsman, Husqvarna and Poulan Mowers Replaces OEM #'s 580244001, 580244002, 587199603

#6

6. Greenworks 2992002VT

• Dimensions: 19.49"D x 1.97"W x 0.47"H
• Material: Stainless Steel

Best for: Greenworks 20-inch mower replacement.

Why it ranks #6: The genuine heat-treated replacement is for selected Greenworks 20-inch mowers and specifies compatible mower ASINs plus a three-year manufacturer warranty.

Compatibility with selected Greenworks 20-inch mowers, including MO48L4210 and MO48L4212, is the defining point of this heat-treated replacement blade. Greenworks notes that its actual blade length is about an inch shorter than the deck size, clarifying why a 20-inch mower does not take a full 20-inch blade.

The heat-treated steel blade is specified for Greenworks 20-inch mowers, with several compatible mower identifiers listed, including MO48L4210-D. Its approximately one-inch-shorter-than-deck measurement explains the clearance relationship between blade tip and deck edge, helping owners interpret the size description correctly. Greenworks identifies this as a genuine replacement part and supplies the 2992002VT model number, useful details when checking a mower against the intended application.

Skip it if you need a replacement for a Greenworks 21-inch mower; Greenworks 2905203 lists compatible 21-inch models.

Choose this for a listed Greenworks 20-inch mower when replacing its blade and checking the model identifiers. The actual blade is about an inch shorter than deck size, so use the stated mower compatibility rather than expecting a full 20-inch blade.

Listed on Amazon as: Greenworks Replacement Lawn Mower Blade (Fits : 20' Mower / MO48L4210 / MO48L4212 / MO48L4210-D)

#7

7. Stens 335-356

• Dimensions: 20.45"L x 2.6"W
• Material: Stens

Best for: Snapper commercial hi-lift fit.

Why it ranks #7: This 20 11/16-inch commercial hi-lift blade fits listed Snapper 21-inch mowers, with a 3/8-inch center hole and OEM references.

A commercial hi-lift profile for 20 11/16-inch Snapper applications distinguishes this Stens replacement from standard-sized walk-behind blades. The listed OEM cross-references help identify the intended mower, while the product information also specifies use on LT11000 and a 41-inch deck requiring two blades.

The 23⁄4-inch width and 0.164-inch thickness accompany a 20 11/16-inch length, giving buyers several dimensions to compare with the replacement specification. A rounded center hole and 3/8-inch center and outer holes further describe the mounting geometry. Its hi-lift type and Snapper OEM references support a targeted commercial replacement search; for a 41-inch deck, the supplied information says two blades are required, so one unit does not complete that setup.

Skip it if you need a complete 41-inch-deck set in one purchase; this listing includes one blade, though two are required.

Consider this single hi-lift blade for a compatible Snapper mower or listed LT11000 application. Owners of a 41-inch deck should account for the stated two-blade requirement, and the specified hole dimensions matter for mounting compatibility.

Listed on Amazon as: Stens New Lawnmower Blade 335-356 Replacement for: Snapper Most Commercial 21' mowers; LT11000; Requires 2 for 41' Deck 1-7002, 1-9645, 1-9702, 1-9710, 2-6691, 7019795

#8

8. Oregon 653520

• Dimensions: 18 x 2.62 x 1.83 in
• Weight: 5.91 lb

Best for: 50-inch MTD deck blade set.

Why it ranks #8: The three-blade set targets selected MTD and Cub Cadet 50-inch decks, with 17 1/4-inch blades and a six-point star center hole.

A three-blade pack for 50-inch decks gives compatible MTD and Cub Cadet tractor and RZT owners a coordinated replacement set. Oregon specifies a 171⁄4-inch blade length, 6-point star center hole, and applications from 2015 onward, making deck and mower details essential fit checks.

The pack contains three blades, matching the listed 50-inch deck application and avoiding a one-blade-at-a-time purchase for that setup. Each blade is specified at 171⁄4 inches long, 2.5 inches wide, and 0.164 inch thick, with a 6-point star center hole. Oregon lists MTD and Cub Cadet lawn tractors and RZT mowers from 2015 onward and names the OEM numbers it replaces; check the mower manual and fit before installation.

Skip it if you need a single blade for a 21-inch mower; MaxPower 331749XB is a one-blade mulching replacement for some 22-inch-cut models.

Choose this set for a compatible MTD or Cub Cadet 50-inch deck requiring three blades. The 171⁄4-inch length, 6-point star center, and listed model-year range are key boundaries; consult the mower manual to verify the match.

Listed on Amazon as: Oregon 50 Inch Lawn Mower Blades, Fits MTD, Cub Cadet & More

#9

9. Stens 345-070

• Weight: 2 lb
• Material: Metal

Best for: Three-blade 50-inch deck replacement.

Why it ranks #9: This medium-lift blade is an 18 3/16-inch replacement for listed AYP, Simplicity, and Snapper machines; a 50-inch deck requires three.

The medium-lift profile and explicit three-blade requirement for a 50-inch deck make this Stens blade a targeted choice for listed AYP, Simplicity, and Snapper applications. Its 18 3/16-inch length and OEM cross-references help distinguish it from other deck-blade replacements.

This 18 3/16-inch blade is 2 inches wide and 0.203 inch thick, with a 3⁄4-inch center hole and 3/8-inch outer holes. Those dimensions give owners concrete mounting details to compare with their current blade. Stens describes it as a medium-lift blade and lists AYP, Simplicity, and Snapper replacement numbers. The supplied information says a 50-inch deck requires three, so this one-blade listing is only a partial replacement for that setup.

Skip it if you need all blades for a 50-inch deck in a single listing; this product is one blade and three are required.

This is a focused replacement for owners whose AYP, Simplicity, or Snapper mower matches the listed numbers and dimensions. For a 50-inch deck, plan around the stated three-blade requirement rather than treating this single blade as a full set.

Listed on Amazon as: Stens New Lawnmower Blade 345-070 Replacement for: AYP Requires 3 for 50' Deck, Simplicity 14-16 GT, 1700 Series; Requires 3 for 50' Deck 1708229, 1708229A, 1708229ASM, 1708229BMA, Black

#10

10. Oregon Gator G3 96-401

• Dimensions: 26.9 x 3.7 x 3.45 in
• Weight: 2.7 lb

Best for: Gator mulching and discharge.

Why it ranks #10: This 46-inch-deck blade is described as an upgrade rather than a replacement and will not fit 2014-and-newer 46-inch stamped decks.

Oregon’s Gator Mulcher blade combines a mulching design with an aggressive blade angle that increases airflow for bagging or side discharge. That mix gives owners of compatible 46-inch Cub Cadet applications a choice between processing clippings and directing them out, subject to a specific deck-year exclusion.

The aggressive blade angle is specified to move more air and push debris up and out, supporting bagging or side discharge. The Gator Mulcher feature is also described as enabling cleaner, more efficient cutting and potentially eliminating bagging. Oregon lists a 6-point star center and 5/8-inch center opening, plus a clear boundary: it will not work on 2014-and-newer 46-inch stamped decks. Check the deck type and year before choosing it.

Skip it if you have a 2014-or-newer 46-inch stamped deck; this blade is expressly listed as incompatible with that setup.

This is for owners of compatible 46-inch Cub Cadet applications who want mulching capability alongside airflow for bagging or side discharge. The stamped-deck year exclusion is decisive, so check deck type and model year before purchase.

Listed on Amazon as: Oregon 46 Inch Lawn Mower Blade, for Most Standard Mowers