8TEN LawnRAZOR Blade for Troy Bilt Tuff Cut 22" Deck 942-0742A 942-0742 742-0742A 742-0742 (Mulching)

What It Is

The 8TEN LawnRAZOR Blade is a mulching blade designed to replace the OEM blade on Troy-Bilt Tuff Cut mowers with a 22-inch cutting deck. It is intended for mulching grass clippings into fine particles for lawn nutrition, not for bagging or side discharge.

Fitment & Compatibility

• Deck size: 22 inches (measure your deck—most common error is assuming 22" when it’s 21" or 20").
• OEM cross-reference: 942-0742A, 942-0742, 742-0742A, 742-0742. Check your current blade’s part number (stamped on the blade) to confirm.
• Brand/models: Fits Troy-Bilt Tuff Cut models with 22" deck (e.g., TB220, TB230, 11A-xxx series). Not compatible with Craftsman, Husqvarna, or other brands without verifying center hole and offset.
• Measurements: Center hole diameter is 1" (common for Troy-Bilt). Blade length is 22" tip-to-tip. Offset (crank) should match OEM—measure your old blade’s offset depth (typically ~0.75").
• Aftermarket note: This is a direct replacement—no adapter or modification needed if your deck is 22" and uses a single blade.

Key Things to Know

• Mulching performance: The curved wing design lifts clippings for finer cut. Works best at full throttle and with dry grass—wet grass will clump.
• Installation difficulty: Easy—just one center bolt (likely 5/8" or 15/16" socket). Torque to 40-50 ft-lbs. Use a blade stop or block the blade before loosening.
• Common gotcha: This blade is NOT for bagging. If your deck has a bagging chute, you’ll need a standard lift blade. Also, check blade balance before installing (a simple screwdriver test works).
• Durability: Heat-treated steel, but thinner than some OEM blades—may dull faster on rocky soil or if hitting roots.

Should You Buy It

Buy this if you have a 22" Troy-Bilt Tuff Cut mower, want improved mulching without buying OEM, and are comfortable with basic blade installation. Skip if you need a bagging or side-discharge blade, or if your deck is a different size. At $21.95, it’s a solid value for a dedicated mulching blade.