ILONPA 21" Mulching Mower Blades for 21-inch Decks — Replacement for Cub Cadet/Troy-Bilt/MTD, Hardened Steel Mulch Profile

These ILONPA 21" mulching mower blades replace factory part numbers for Cub Cadet, Troy-Bilt, MTD and Craftsman to restore cutting performance and enable efficient mulching on 21" decks.

If your walk-behind or self-propelled mower with a 21-inch deck is showing ragged cuts or poor grass clippings, refreshed blades are the fastest way to improve results. These ILONPA blades are built to match popular OEM part numbers (742-0741, 942-0741, 742-04276, 490-100-C089 and many others) so they fit a broad range of Cub Cadet, Troy-Bilt, MTD, Craftsman and related machines produced since the mid-1990s. The set provides mulching-style profiles and hardened steel construction for reliable everyday mowing.

How will these blades change my lawn’s appearance?

Sharper, correctly profiled blades shear grass cleanly instead of tearing it, which reduces browning and gives a more uniform lawn. Mulching edges on these blades re-cut clippings multiple times so they break down faster and feed the turf as a fine thatch-free mulch.

• Restores sharp cutting edge for cleaner, healthier-looking stripes and even length
• Mulching lips reduce clipping size for faster decomposition
• Hard steel resists bending and holds edge between sharpenings

Will these fit my mower model and how do I confirm compatibility?

These blades are made to replace numerous OEM numbers across multiple brands; they are intended for 21-inch cutting decks on walk-behind, push and self-propelled mowers. Confirm fit by matching your deck size and your existing blade’s part number with the listed compatible numbers.

• Cross-replaces 742-0741, 942-0741, 742-04276, 490-100-C089 and related part numbers
• Works with many Cub Cadet, Troy-Bilt, MTD, Craftsman models listed in product details
• Fits 21" cutting decks—verify deck width and spindle/bolt pattern before purchase

How durable are the ILONPA blades and what maintenance do they need?

Manufactured from hardened steel, these replacement blades are designed for repeated mowing seasons. Proper mounting, periodic sharpening and balancing will maximize life and protect your mower’s spindle and engine from vibration-related wear.

• Hardened steel construction for improved edge retention and strength
• Easily sharpened to extend service life; balance after sharpening
• Inspect for nicks or bends; replace if damaged to avoid deck vibration

How do these blades help with mulching versus side-discharge or bagging?

The blade profile includes mulching lips that re-cut clippings and keep them circulating under the deck until sufficiently shredded. This lowers clumping and helps return nutrients to the lawn when used on appropriate mowing heights and conditions.

• Mulching design reduces clipping size for faster decomposition
• Helps produce a finer, more even spread of organic matter back into the turf
• Can still be used with side-discharge or bagging configurations if desired

Who is this for: homeowners and lawn-care enthusiasts who own a 21-inch walk-behind or self-propelled mower by Cub Cadet, Troy-Bilt, MTD, Craftsman or compatible brands and want a reliable, OEM-fit mulching blade replacement. Ideal for anyone who needs a cost-effective way to restore cutting quality, improve mulching performance, and extend mower life through correct replacement parts.