ACEBRI Mower Blades 21 inch Fit for Craftsman Tyoy Bilt MTD Cub Cadet 742-04276,742-0741,742-0741-0637,942-0741A, TB110 TB230 TB240 TB130 21 inch Walk Behind Push Mower (Bow Tie Hole),2PS

What It Is

This is a set of two 21-inch replacement mower blades designed for walk-behind push mowers, compatible with Craftsman, Troy-Bilt, MTD, and Cub Cadet models. They feature a “bow tie” center hole and are intended for standard mulching or bagging use on residential lawns.

Fitment & Compatibility

Before buying, confirm your mower deck is exactly 21 inches (measure blade tip to tip). These blades replace OEM part numbers 742-04276, 742-0741, 742-0741-0637, and 942-0741A. They fit specific Troy-Bilt TB110, TB130, TB230, TB240, and Cub Cadet push mowers with a bow tie (4-point) center hole pattern. Measure your existing blade length, center hole shape, and overall width (typically 2.5 inches). Not compatible with universal star or oval hole patterns. Check your mower’s model number (found under the seat or on the deck) against the list above.

Key Things to Know

• Quality vs OEM: These are aftermarket blades made from hardened steel. They are slightly thinner than some OEM blades and may wear faster in sandy or rocky soil.
• Installation: Simple bolt-on swap—remove the old blade, center the new one on the spindle, and torque the bolt to 30-40 ft-lbs. No special tools needed beyond a wrench.
• Common Gotchas: The bow tie hole must align exactly with your spindle; if it’s loose, the blade will wobble. Always use a blade balancer after installation to prevent vibration and bearing wear.
• Edge Sharpness: Blades come sharp but may require a light touch-up with a file after first use for best cutting performance.

Should You Buy It

If you own a compatible 21-inch Troy-Bilt or Cub Cadet push mower and want a budget-friendly replacement that performs adequately for regular lawn care, this set is a solid choice. However, for heavy-duty use or larger lawns, consider OEM blades for longer life and better durability.