GICOOL 1-Pack 942-0741A Lawn Mower Mulching Blade for MTD/Cub Cadet/Troy-Bilt 21 Inch Deck Mower, Replaces 742-0741A 742-04100 942-0741 CMXGZAM100067

What It Is

This is a 21-inch mulching blade designed to replace the stock blade on MTD, Cub Cadet, and Troy-Bilt push mowers. It uses a raised wing design to recirculate clippings for finer cutting, ideal for mulching leaves and grass without bagging.

Fitment & Compatibility

Before buying, confirm your mower has a 21-inch cutting deck and a center hole diameter of 1 inch (common for these brands). This blade replaces OEM part numbers 742-0741A, 742-04100, 942-0741, and CMXGZAM100067. It fits most MTD, Cub Cadet, and Troy-Bilt models from the 2000s onward, but double-check your mower’s model number (e.g., 11A-*****) against the manufacturer’s compatibility list. If your mower uses a different hole size or offset, this blade won’t work.

Key Things to Know

• Installation difficulty: Easy – requires a socket wrench and blade removal tool. Always disconnect the spark plug first.
• Quality: Solid steel construction with a corrosion-resistant coating. Some users report it stays sharp longer than OEM blades.
• Gotcha: This is a mulching blade only – it won’t bag or side-discharge well. If you need versatility, look for a 3-in-1 blade.
• Fitment check: Measure your old blade’s length (center hole to tip) to ensure 21 inches. Slight variations in deck shape can cause rubbing.

Should You Buy It

If you own a 21-inch MTD-family mower and primarily mulch leaves or grass, this blade is a reliable, affordable upgrade over the stock blade. It’s not for bagging or side-discharge use, but for pure mulching, it’s a solid choice at this price point.