942-0616 Mulching Blades for Cub-Cad et 42" Deck, 942-04308 Mower Blades for Craftsman/Troy Bilt/MTD 42" Riding Tractor, Replace for 742-04308, 942-0616-X, 942-04126-X, 2 Pack

What It Is

This is a 2-pack of mulching blades designed for 42-inch cutting decks on riding tractors from Cub Cadet, Craftsman, Troy-Bilt, and MTD. They replace OEM part numbers 742-04308, 942-0616-X, and 942-04126-X, and are intended for mulching grass clippings into fine particles rather than side-discharging or bagging.

Fitment & Compatibility

Before buying, confirm your deck measures exactly 42 inches from blade tip to blade tip. These blades fit most MTD-built riding tractors with a 42-inch stamped deck, including Cub Cadet (LT series), Craftsman (LT1000/2000/3000), and Troy-Bilt (Bronco, Pony). They are aftermarket replacements for OEM numbers listed above. Check three measurements: blade length (approx. 20.5 inches), center hole diameter (usually 1 inch), and thickness (0.25 inches). Also verify the blade spindle pattern—these use a standard 5-point star center hole. If your deck uses oval or offset holes, these won’t fit.

Key Things to Know

• Mulching vs. standard: These blades have a curved, high-lift design with extra cutting edges to chop clippings finer. They won’t work well for bagging or side-discharge unless you install a mulching plug.
• Installation: Requires a socket wrench and torque wrench (45-55 ft-lbs recommended). Lift the deck or remove the blades safely—disconnect spark plug and block mower.
• Balance check: After mounting, spin the blade by hand to ensure it doesn’t wobble. Unbalanced blades cause vibration and premature spindle wear.
• Durability: Made from hardened steel, but expect to sharpen or replace every 20-25 hours of use, especially in dense or wet grass.

Should You Buy It

If you own a 42-inch MTD-based riding mower and want to mulch leaves or grass without clumping, this is a solid, affordable upgrade. It’s not for bagging or side-discharge, and you’ll need to confirm your deck’s spindle pattern. For the price, it’s a reliable replacement that matches OEM specs.