3-Pack 18" Mulching Blades 942-04053C 942-04053-X 742-04053 Replacement for Cub Cadet 50 Inch Mower Deck RZT-50 LTX-1050, Compatible with Troy Bilt Mustang 50, Toro 112-0316, 6 Point Star

What It Is

This is a 3-pack of 18-inch mulching blades designed for 50-inch mower decks on select Cub Cadet, Troy-Bilt, and Toro zero-turn and lawn tractors. They replace OEM part numbers 942-04053C, 942-04053-X, 742-04053, and Toro 112-0316, intended for high-lift mulching performance that chops clippings fine for bagless cutting.

Fitment & Compatibility

Before buying, verify your deck is exactly 50 inches wide and uses a 6-point star center hole (common on stamped steel decks). These blades fit Cub Cadet RZT-50, LTX-1050, and similar models, plus Troy-Bilt Mustang 50 and Toro TimeCutter/ZT models that accept 112-0316. Measure your current blade length—must be exactly 18 inches from tip to tip. Check the blade thickness (typically 0.25 inches) and ensure your spindle pattern matches the 6-point star (not a 5-point or round hole). If your deck uses a different hole pattern or offset, these won’t work.

Key Things to Know

• Quality vs. OEM: Aftermarket blades are often slightly lighter gauge steel than OEM Cub Cadet/Craftsman blades, so they may wear faster in sandy or rocky conditions.
• Installation difficulty: Easy—just lift the deck safely, remove the center bolt (usually 15/16” or 5/8” socket), replace one blade at a time, and torque to 70-90 ft-lbs. No special tools needed.
• Mulching only: These are designed for mulching, not bagging or side-discharge. If you switch modes, you’ll need dedicated blades for each.
• Balance check: After installation, spin the blade by hand to ensure it’s not wobbling. Unbalanced blades cause vibration and bearing wear.

Should You Buy It

Buy this 3-pack if you have a 50-inch Cub Cadet, Troy-Bilt, or Toro mower with a 6-point star spindle and want affordable mulching blades for regular lawn maintenance. It’s a solid value for the price, but if you mow over thick, wet grass or rocky terrain, consider stepping up to OEM or heat-treated blades for longer life.