ZALANA 942-0741A Lawn Mower Mulching Blade Replace 742-0741 742-0741A 942-0741 for Troy Bilt TB280ES TB240 TB130 TB230 TB210 TB110 TB220 TB320 Craftsman 247 Series Push Mower (2 Pack) - 21" Deck

What It Is

This is a 2-pack of mulching blades designed for 21-inch push mower decks. They replace OEM part numbers 742-0741, 742-0741A, and 942-0741, and are intended for use on Troy-Bilt TB series mowers and Craftsman 247 series push mowers. The mulching design cuts grass into fine clippings that decompose quickly, so you don’t have to bag.

Fitment & Compatibility

Before buying, check three things:

• Deck size: This blade is for a 21-inch deck only. Measure your mower’s cutting width if unsure.
• Model numbers: Fits Troy-Bilt TB280ES, TB240, TB130, TB230, TB210, TB110, TB220, TB320, and Craftsman 247 series push mowers. Cross-reference your mower’s model number (on the deck or under the seat) with the list.
• Center hole and blade dimensions: The blade has a 1-inch center hole and a 3-inch diameter blade boss (the raised ring around the hole). Measure your old blade’s center hole and boss diameter to confirm. This is an aftermarket blade, not OEM, but matches the original specs.

Key Things to Know

• Sharpness out of box: These blades come sharp but not razor-fine—expect to sharpen them after a season of use.
• Installation difficulty: Easy if you have a socket wrench and a block of wood to lock the blade. Torque the bolt to about 30-40 ft-lbs; don’t overtighten.
• Mulching vs. bagging: Designed for mulching only. If you bag clippings, use a standard lift blade instead.
• Balance check: After installation, spin the blade by hand to ensure it’s balanced. A wobble means uneven cut and vibration.

Should You Buy It

If you own a compatible Troy-Bilt or Craftsman push mower with a 21-inch deck and want to mulch without bagging, this is a solid, affordable upgrade. The 2-pack gives you a spare, and the high rating (4.8/5) backs its reliability. Just verify your mower’s model and deck size first—fitment is the only potential snag.