942-0616 Mower Mulching Blade Set for 42 inch Deck fits for Cub Cadet MTD RZT XT1 XT2 LT42 LTX1040 Replaces 42" Deck Replaces 942-04308-X 942-04126

What It Is

This is a set of three mulching blades designed for 42-inch cutting decks on select Cub Cadet and MTD lawn tractors and zero-turn mowers. They replace OEM part numbers 942-04308-X and 942-04126, and their primary job is to chop grass clippings finely and circulate them back into the turf for natural fertilization.

Fitment & Compatibility

Before buying, confirm your mower deck is exactly 42 inches wide (measured blade tip to blade tip). These blades fit Cub Cadet models: RZT, XT1, XT2, LT42, LTX1040, and many MTD equivalents. Check your current blade’s part number—if it’s 942-04308-X or 942-04126, this set is a direct replacement. Measure your blade length (should be ~20.5 inches), center hole diameter (usually 1 inch), and number of mounting holes (typically 5-point star pattern). Verify spindle orientation—some decks require a specific blade offset. If your deck uses a different center hole or has an odd number of blades, this set won’t fit.

Key Things to Know

• Quality: These are OEM-grade steel blades with a hardened edge. They balance well and hold an edge longer than cheap generic brands.
• Installation: Easy DIY job if you have a socket wrench and a block of wood to wedge the blade. Torque bolts to 50-70 ft-lbs. Reinstall with the sharp edge facing the direction of rotation (usually upward toward the deck).
• Gotcha: Mulching blades work best with a high-lift deck and when mowing dry, short grass. They can clog in wet or tall grass—use a bagging or side-discharge blade for those conditions.
• Set includes: Three blades, but no hardware. Reuse your existing bolts and washers unless they’re worn or stripped.

Should You Buy It

If you own a 42-inch Cub Cadet or MTD tractor or zero-turn and want clean mulching performance without paying dealer markup, this set is a solid value at $28.99. It’s best for homeowners who mow weekly and prefer to leave clippings on the lawn. Not ideal for commercial use or if you need standard lift blades for bagging.