3 Pack 17-5/16" 942-05052A Mower Blades Replacement for Cub Cadet MTD Troy Bilt Craftsman 50" Deck, Replaces 742-05052A 330-052 ZT1 XT1 RZT-L50

What It Is

This is a 3-pack of 17-5/16" replacement mower blades designed for 50-inch cutting decks on select Cub Cadet, MTD, Troy-Bilt, and Craftsman lawn tractors. They’re for homeowners or light commercial users needing sharp, balanced blades for regular mowing.

Fitment & Compatibility

Before buying, confirm your deck measures exactly 50 inches (not 46 or 54). These blades replace OEM part numbers 942-05052A, 742-05052A, and 330-052. They fit models including Cub Cadet ZT1, XT1, and RZT-L50, plus many MTD, Troy-Bilt, and Craftsman tractors with a 50-inch stamped deck. Measure your blade length (center hole to tip) at 17-5/16" and verify the center hole is 7/16" diameter, with a 3/4" offset. Double-check your deck’s spindle pattern—some 50-inch decks use two or three blades, so ensure you’re buying a 3-pack for a triple-blade setup.

Key Things to Know

• Quality: These are aftermarket blades, not OEM Cub Cadet. They’re typically made of hardened steel and should match OEM specs, but inspect for burrs or uneven edges before installing.
• Installation: Easy with a socket wrench and torque wrench. Tighten to 70-90 ft-lbs. Always lift the deck or block the mower safely. Use a blade balancer after installation—unbalanced blades cause vibration and deck damage.
• Common Gotcha: The 50-inch deck on some models (e.g., ZT1) uses a 5-point star or oval center hole—this 7/16" round hole may not fit. Check your spindle’s center hole shape before buying.
• Sharpness: Blades come sharp but not razor-edge. Resharpen after 10-15 hours of use for best cut quality.

Should You Buy It

Buy these if you need a cost-effective 3-pack for a 50-inch deck on Cub Cadet, MTD, Troy-Bilt, or Craftsman tractors with round center holes and a 17-5/16" blade length. They’re a solid value for regular residential mowing, but skip them if your deck uses star-pattern spindles or you require OEM-grade steel for heavy commercial use.