ACEBRI Mulching blades for Cub Cadet Troy Bilt 42 inch blades 942-0616A 742-0616 942-04126 742-04126 RZT42 XT1 LT42 XT2 LX42 for Cub Cadet 42" Zero Turn Lawn for Troy Bilt Bronco Pony 42", 2Pack

What It Is

These ACEBRI mulching blades are a 2-pack aftermarket replacement for 42-inch Cub Cadet and Troy Bilt lawn tractors and zero-turn mowers. Designed for fine grass clipping mulching, they improve nutrient recycling and reduce bagging needs.

Fitment & Compatibility

• Deck size: Only for 42-inch cutting decks. Measure your deck width; a 42-inch deck uses three blades (this pack covers two, so you’ll need one additional blade if replacing all three).
• Compatible models: Cub Cadet XT1, XT2, LX42, RZT42, and Troy Bilt Bronco/Pony 42-inch models. Check your mower’s original blade part numbers: 942-0616A, 742-0616, 942-04126, or 742-04126.
• Measurements: Blade length is 21 inches (center hole to tip), width 2.5 inches, center hole 5/8 inch, 7-point star center. Verify these match your old blade.
• OEM vs aftermarket: These are not genuine Cub Cadet/Troy Bilt parts. Aftermarket blades may have slightly different balance or thickness, which can affect cut quality and vibration.

Key Things to Know

• Installation difficulty: Easy if you have a socket wrench and blade removal tool. Torque to 40-50 ft-lbs. Remove spark plug wire first for safety.
• Quality concerns: Mixed reviews (3.8/5). Some users report blades are thinner than OEM, leading to faster wear or bending on tough grass/rocks. Check for burrs on cutting edges before installing.
• Mulching performance: Works best for regular mowing (not overgrown grass). For heavy mulching, ensure deck is clean and blades are sharp; aftermarket blades may dull faster than OEM.
• Common gotcha: The 7-point star center hole fits most Cub Cadet spindles, but double-check your spindle’s star pattern. Some older models use a different star count.

Should You Buy It

Buy these if you need a budget-friendly 2-pack for a 42-inch Cub Cadet or Troy Bilt and mow regularly on normal lawns—not if you need OEM durability for rough terrain, heavy mulching, or commercial use. For the price, they’re a decent stopgap, but expect shorter lifespan than genuine parts.