Medium Lift Mulching Blades Replacement Part Number Cub Cad et Troy Bilt 942-05052A 742-05052A Craftsman MTD Compatible with RZT XT1 ZT1 LT50 XT2 ZT2 L50 LX50 S50 GT50 Z550 T260, 3 Pack

What It Is

This is a set of three medium-lift mulching blades designed for residential zero-turn and lawn tractors. They replace OEM part numbers 942-05052A and 742-05052A, and fit Cub Cadet, Troy-Bilt, Craftsman, MTD, and RZT/XT1/XT2/Z250 series mowers. They are intended for mulching—chopping clippings finely to leave on the lawn as natural fertilizer.

Fitment & Compatibility

• Deck size: These blades fit 42-inch, 46-inch, and 50-inch cutting decks (check your deck’s exact width).
• Model family: Compatible with Cub Cadet RZT, XT1, XT2, ZT1, ZT2, LT50, L50, LX50, S50, GT50, Z550, T260; Troy-Bilt models using 942-05052A; Craftsman LT1000/2000/3000/4000/5000 series; MTD RZT and LT series.
• OEM vs aftermarket: Aftermarket replacement. Confirm your original blade part number is 942-05052A or 742-05052A.
• Measurements before buying: Blade length (typically 20.5 inches), center hole diameter (1 inch), and offset (0.5 inches). If your blade is longer or has a different hole, this won’t fit.

Key Things to Know

• Installation difficulty: Easy—requires a socket wrench and torque to 70–90 ft-lbs. Use anti-seize on the bolt to prevent seizing.
• Mulching performance: Medium lift provides good airflow for fine cutting without excessive power draw. Best on dry grass; wet grass will clump.
• Durability: Heat-treated steel with a painted finish. Expect 1–2 seasons of normal residential use before dulling. Sharpenable.
• Common gotcha: These are not for bagging or side-discharge—use only with a mulching plug/kit installed.

Should You Buy It

Buy these if you have a compatible 42–50 inch deck and want an affordable, direct-fit mulching blade set for routine residential mowing. The price ($18.99 for three) is competitive, and ratings are strong. Skip them if you need bagging or high-lift blades for tall, wet grass.