942-04053C 50" Lawn Mower Blades with 6 Point Star Shape, Mulching Blades Compatible with MTD Cub Cadet Troy Bilt 50 inch Deck Zero Turn Riding Mower, Replaces Number 742-04056, 942-04056, 3 Pcs

What It Is

This is a set of three 50-inch mulching blades designed for zero-turn riding mowers with a 50-inch cutting deck. They feature a 6-point star center hole for secure mounting and are intended to chop grass clippings finely for nutrient recycling.

Fitment & Compatibility

• Deck size: Must be exactly 50 inches. Measure your deck width (blade tip to blade tip) before ordering.
• Brand/model: Compatible with MTD, Cub Cadet, and Troy-Bilt zero-turn mowers using a 50-inch deck. Common models include Cub Cadet ZT1 50, Troy-Bilt Mustang 50, and MTD 50-inch deck units.
• OEM vs aftermarket: Replaces OEM numbers 742-04056 and 942-04056. This is a direct aftermarket replacement with the same 6-point star pattern and blade length.
• Key measurements: Blade length is 20.5 inches; center hole diameter is 1 inch (6-point star); thickness is about 0.25 inches. Confirm these match your current blades.
• Check your spindle: The 6-point star must align with your spindle’s drive pins. If your mower uses a different pattern (e.g., oval or keyhole), this won’t fit.

Key Things to Know

• Installation difficulty: Moderate. You’ll need a socket wrench, torque wrench (set to 70-90 ft-lbs), and a blade removal tool or block of wood to prevent spinning. Always disconnect the spark plug first.
• Mulching performance: These blades have a curved, high-lift design to recirculate clippings. They work best with a mulching plug installed and dry grass; wet or tall grass may clog.
• Balance check: New blades may need balancing. Use a blade balancer or a nail in the wall—if one side dips, file the heavy end slightly. Unbalanced blades cause vibration and spindle wear.
• Durability: Made from hardened steel with a painted finish. Edge retention is decent for residential use but may dull faster than OEM if you hit rocks or sticks.

Should You Buy It

Buy this if you have a 50-inch MTD/Cub Cadet/Troy-Bilt zero-turn mower, want a cost-effective mulching blade set, and don’t mind a simple DIY install. Avoid if you need a high-lift bagging blade or have a different deck size or spindle pattern—double-check your OEM part number first.