742-05510-X Mower Blades Fits for Cub-Cad et 46-Inch XT2-LX46, ZTS1-46, XT1-LT46, 742P05510-X Toothed Blades Compatible with Troy-Bilt Super Bronco 46 XP, Mustang Z46, 2-Pack

What It Is

This is a 2-pack of toothed (mulching) mower blades, model 742-05510-X, designed for 46-inch cutting decks on select Cub Cadet, Troy-Bilt, and related MTD-built lawn tractors and zero-turns. They replace OEM part 742P05510-X and are intended for mulching grass clippings rather than side-discharge or bagging.

Fitment & Compatibility

Deck size: Only fits 46-inch decks. Measure your deck width before ordering—this is the most common mismatch.

Models confirmed fit: Cub Cadet XT2-LX46, ZTS1-46, XT1-LT46; Troy-Bilt Super Bronco 46 XP, Mustang Z46. Also fits many MTD, Yard Machines, and Craftsman 46-inch decks using the same blade pattern.

Check before buying:

• Center hole: Must be 5-point star (common on MTD/Cub Cadet). Measure the hole diameter—typically 1" or 1-1/8".
• Blade length: 20.5 inches end-to-end. Measure your old blade.
• Offset/dish: These are mulching blades with a slight upward curve—verify your deck uses mulching blades (not high-lift or standard).
• OEM vs aftermarket: These are aftermarket, not genuine Cub Cadet/Troy-Bilt. They may differ slightly in thickness or balance.

Key Things to Know

• Quality concerns: 3.5-star average with only 9 reviews suggests mixed feedback. Some users report premature dulling or balance issues. Inspect for warping before installing.
• Installation difficulty: Easy—lift mower, remove center bolt, swap blades, torque to 40-50 ft-lbs. Use a blade stop tool or block of wood to prevent spinning.
• Toothed design: These are mulching blades (serrated edge). They cut grass finer but require more engine power and work best with a mulching plug installed.
• Gotcha: If your mower uses a different blade mounting pattern (e.g., oval hole, 6-point star), these won’t fit. Double-check your current blade’s center hole shape.

Should You Buy It

Buy these if you have a confirmed compatible 46-inch Cub Cadet or Troy-Bilt mower, need a budget-friendly mulching blade set, and are comfortable checking balance and sharpening after a few uses. Skip them if you prefer OEM reliability, need side-discharge or bagging blades, or have a deck that uses a non-star center hole.