IDEASURE 21-inch Mulching Mower Blades, 2-Pack — 11/16-inch Center Hole, 0.126 in Thick

The IDEASURE 942-0741A is a 21-inch mulching replacement blade pair engineered to restore crisp, even cuts and efficient clippings recycling on compatible Troy-Bilt, MTD, Cub Cadet and Craftsman lawn mowers.

These two OEM-fit mulching blades are designed as direct-fit replacements for multiple part numbers (including 742-0741A and 942-0641) and suit a wide range of walk-behind mowers with a 21" deck. Built to the same mounting dimensions as the originals, each blade measures 21" long with a 11/16" center hole and a 0.126" thickness to ensure secure installation and reliable balance. They improve grass discharge control for smoother bagging, side discharge, or mulching depending on your mower setup.

Will these blades fit my mower model?

Compatibility covers many models across Cub Cadet, MTD, Troy-Bilt and Craftsman families, but you should confirm your mower’s blade length and center-hole diameter before buying. Cross-referenced part numbers and model lists simplify matching to your machine.

• Works with many Cub Cadet models such as CC439, CC949, CC989 and PR521 series.
• Fits MTD and Troy-Bilt walk-behinds including Tru-Cut, Tuff-Cut and Pro-Cut lines and TB130 XP variants.
• Replaces OEM numbers like 942-0741, 742-0741A, 942-0641 and 742-04276.
• Blade specs: 21" length, 2-1/4" width, 0.126" thickness, 11/16" center hole.

How do these blades affect cutting performance?

The mulching profile trims grass into finer clippings and circulates them under the deck so they break down quicker, which promotes even-looking turf and reduces visible debris. They are balanced to reduce vibration and maintain deck-level performance for consistent results across different grass types and yard conditions.

• Sharper, uniform cut across the full 21" deck width.
• Mulching flanges help recirculate clippings for natural lawn feeding.
• Balanced design reduces vibration and protects spindles and hardware.
• Durable steel thickness resists bending under normal use.

What should I check before installation?

Confirm the blade’s length, thickness, and center-hole diameter match your mower’s specifications to avoid fitment issues. Use proper torque on mounting bolts, replace blades in matched pairs when required, and always follow safety steps: disconnect spark plug and work on a stable surface.

• Verify 21" blade length and 11/16" center hole on your mower.
• Install blades in matched pairs for balance—this product includes two blades.
• Disconnect the spark plug and wear gloves when changing blades.
• Check blade rotation direction to align cutting edge correctly.

How long will these replacement blades last and when should I sharpen or replace them?

Blade life depends on usage, terrain, and contact with hard objects; regular inspection after every few mowings will reveal nicks or uneven wear. Re-sharpening restores cutting performance several times, but replace blades when they become too thin, bent, or repeatedly nicked.

• Sharpen when cutting performance decreases or grass tears rather than cuts.
• Replace when bend, deep nicks, or loss of structural integrity occur.
• Inspect balance after sharpening—unbalanced blades cause vibration.
• Store spare blades dry to limit corrosion between seasons.

Who this is for: Homeowners and small-property managers who need a reliable, direct-fit 21" mulching blade replacement for popular walk-behind mowers. This 2-pack suits anyone who prefers to repair and maintain their mower themselves, wants balanced cutting performance, and looks to recycle clippings via mulching rather than dispose of them. If you own a compatible Troy-Bilt, MTD, Cub Cadet, or Craftsman mower and require OEM-style fit and dimensions, this IDEASURE blade pair is a practical, cost-effective option.