942-04308-X Toothed Mulching Blades for Cub Cadet MTD Troy-Bilt Riding Tractor Zero Turn Mower 42 Inch Deck - Heavy Duty Blade Replaces 942-04308 942-0616 742-0616 942-04126 942-04308-X - 2 Pack

What It Is

This 2-pack of toothed mulching blades (model 942-04308-X) is designed for Cub Cadet, MTD, and Troy-Bilt riding tractors and zero-turn mowers with a 42-inch cutting deck. The toothed edge cuts grass more finely for better mulching and nutrient recycling, ideal for frequent mowing without bagging.

Fitment & Compatibility

Before buying, check these three things:

• Deck size: Only fits 42-inch decks. Measure your deck’s cutting width to confirm.
• Model & brand: Direct replacement for OEM part numbers 942-04308, 942-0616, 742-0616, and 942-04126. Fits many Cub Cadet, MTD, and Troy-Bilt models (e.g., LTX 1042, RZT 42, TB42). Verify your mower’s model number on the manufacturer’s site or manual.
• Measurements: Blade length is approximately 20.5 inches, center hole diameter 1 inch, and oval drive hole 7/16 x 3/4 inch. Measure your old blade’s length, hole pattern, and thickness to avoid fit issues.

Key Things to Know

• Quality: Heavy-duty steel with a toothed edge for finer mulching. Thicker than standard blades, so they last longer but may require more engine power.
• Installation: Easy DIY job with a socket wrench and blade removal tool. Always disconnect the spark plug and wear gloves. Torque blade bolts to 70-80 ft-lbs.
• Gotcha: These are mulching blades, not for bagging or side discharge. Using them with a bagger will clog. Also, they’re not universal—double-check your spindle pattern (oval vs. round hole).
• Balance: After installation, spin the blade to check for wobble. Unbalanced blades cause vibration and poor cut.

Should You Buy It

Buy this if you own a 42-inch Cub Cadet, MTD, or Troy-Bilt rider or zero-turn and mulch regularly. The toothed design gives a clean, fine cut, and the heavy-duty build outlasts standard blades. Avoid if you need bagging blades or have a different deck size. At $19.99 for two, it’s a solid value for frequent mulchers.