742P05510-X Xtreme Mulching Mower Blade for Cub Cadet MTD Troy Bilt 46" Zero-Turn Mowers, Replaces 742-05510-X 490-110-C203 CMXGZAM110203, Compatible with Enduro XT1-LT46 XT2-LX46 (1PACK)

What It Is

This is a 46-inch deck mulching blade for Cub Cadet, MTD, and Troy-Bilt zero-turn mowers. It’s designed to chop clippings finer and blow them back into the lawn for natural fertilization, reducing bagging needs.

Fitment & Compatibility

Before buying, confirm your deck is exactly 46 inches side-to-side. This blade fits Cub Cadet XT1-LT46, XT2-LX46, and Enduro Series zero-turns, plus many MTD and Troy-Bilt models with 46-inch fabricated or stamped decks. It replaces OEM part numbers 742-05510-X, 490-110-C203, and CMXGZAM110203. Measure your current blade length from center hole to tip—this one is 20 inches long with a 1-inch center hole and 7-point star drive. Check your spindle mounting pattern; it uses a standard 5-point star (common on MTD-style spindles). If your mower uses a different drive (e.g., 6-point or oval), it won’t fit.

Key Things to Know

• Quality: Aftermarket blade, not OEM Cub Cadet. Made of heat-treated steel, but may not hold an edge as long as factory blades on heavy or wet grass.
• Installation: Easy with a socket and torque wrench. Tighten to 45-55 ft-lbs. Use a blade locking tool or block the deck to prevent spinning.
• Common gotcha: Mulching blades are less efficient at bagging or side-discharging. If you switch between modes, you’ll need to swap blades or buy a dedicated set.
• Performance: Works best with dry, 3-inch or shorter grass. Tall or wet grass may clog or leave clumps.

Should You Buy It

Buy this if you run a 46-inch Cub Cadet/MTD zero-turn, want to reduce bagging frequency, and don’t mind replacing blades slightly more often than OEM. It’s a solid budget mulching option for regular, light-duty mowing. Skip it for heavy commercial use or if you need OEM longevity.