942-0741A 942-0741 Mulching Blade, Compatible with 21" Deck Mower Troy Bilt M TD Cub Cad et TB130 TB240 TB160 TB230 TB115, Replace 742-0741A 742-0741, 2 Pack

What It Is

This is a 2-pack of replacement mulching blades (model 942-0741A) designed for 21-inch deck walk-behind mowers, primarily Troy-Bilt, MTD, and Cub Cadet models. They cut grass into fine clippings that decompose quickly, eliminating the need for bagging.

Fitment & Compatibility

• Deck size: Must be exactly 21 inches. Measure your deck’s cutting width (blade tip to tip) to confirm.
• Brands: Troy-Bilt (TB130, TB240, TB160, TB230, TB115), Cub Cadet, MTD, and some Yard Machines with 21" decks.
• OEM cross-reference: Replaces OEM part numbers 742-0741A and 742-0741. Check your current blade’s stamped number.
• Key measurements: Blade length 21", center hole diameter 7/8", offset 0.75". Verify these against your old blade before buying.
• Not universal: Will not fit 20", 22", or other deck sizes. Confirm your mower model in the compatibility list or cross-check with your owner’s manual.

Key Things to Know

• Quality: Made from heat-treated steel for durability. At $24.59 for two, they’re a solid value compared to OEM (often $15–$20 each).
• Installation: Moderate difficulty—requires a socket wrench and blade removal tool (or block of wood to prevent rotation). Torque blade bolt to 35-40 ft-lbs. Sharp side faces up on most mowers.
• Common gotchas: These are mulching blades, not standard lift blades—they have a curved, serrated design. They won’t discharge clippings well if you leave the side chute open. Always replace all blades at once for balanced cutting.
• Lift and cut: Slightly less bagging lift than OEM high-lift blades; best for dry, short grass. Wet or tall grass may clog.

Should You Buy It

If you own a 21" Troy-Bilt, MTD, or Cub Cadet walk-behind and want to mulch without bagging, this is a reliable, budget-friendly choice. The 4.6-star rating (118 reviews) confirms consistent fit and performance. Skip it if you need high-lift blades for bagging or have a different deck size.