Aeagle 21-Inch Toothed Mulching Blades for Mowers — 2-Pack, 11/16" Bow-Tie OEM-Equivalent

Aeagle's 21-inch toothed mulching blade 2-pack is a direct-fit replacement blade set engineered to restore cutting performance on compatible Craftsman, MTD, Cub Cadet and Troy-Bilt lawn tractors.

If your mower is leaving clumps, producing uneven cut lines, or losing bagging power, worn or damaged blades are often the culprit. These Aeagle replacement blades are designed with teeth for improved mulching action, OEM-equivalent center hole and thickness specs, and a two-blade pack so you can replace both blades on a 21-inch deck for balanced performance.

Which mower models and part numbers will these blades replace?

These blades are built to match common OEM dimensions and bolt patterns used across many Craftsman, Cub Cadet, MTD and Troy-Bilt machines. They are listed as compatible with several model series and replace multiple part numbers used by original manufacturers.

• Replaces part numbers: 742-0741, 742-0741A, 942-0741, 942-0741A and related OEM codes.
• Compatible brands/models include select Cub Cadet CC and SC series, Craftsman M100–M320 series, and Troy-Bilt TB100–TB490 series.
• Designed for 21-inch decks; verify your deck diameter and blade center hole before ordering.

How do these toothed mulching blades improve lawn cutting?

The toothed edge helps lift and recut clippings into finer particles, promoting quicker breakdown into the turf rather than leaving long grass ribbons. That enhances the mulching effect and can reduce visible clumps when the deck and grass conditions are suited to mulching.

• Toothed profile improves airflow and clippings circulation in the deck.
• Sharper cutting surfaces reduce tearing and pull for cleaner cuts.
• Balanced set (two blades) reduces vibration and improves even mowing.

What are the exact specifications to confirm fit?

Measure your existing blade to ensure a match: these Aeagle blades have the same critical dimensions used by the original replacement parts. Confirming thickness, length and center hole type avoids fitment issues.

• Overall length: 20 7/8 inches (nominal for 21" decks).
• Width: 2 3/8 inches; thickness: 0.126 inches.
• Center mounting: 11/16" bow-tie style hole to match many OEM spindles.

How easy is installation and what should I check during replacement?

Installation is straightforward for anyone comfortable with basic mower maintenance: raise the deck, secure the mower, remove the old blades and install the replacements with the correct orientation and torque. Always follow your mower manufacturer's safety steps and torque specs.

• Disconnect spark plug and stabilize mower before working under the deck.
• Replace both blades together to keep blade balance and reduce vibration.
• Verify blade rotation direction and tighten mounting bolt to OEM torque.

Who is this for: These Aeagle 21" toothed mulching blades are intended for homeowners and small-property landscapers who need OEM-compatible replacement blades for 21-inch decks on select Craftsman, MTD, Cub Cadet and Troy-Bilt lawn tractors. Choose this 2-pack when you want to restore cutting quality and mulching performance using blades matched to common part numbers and measurements; confirm your mower model and spindle hole type before purchasing.