8TEN LawnRAZOR Mower Blade for MTD Cub Cadet RZT L46 S46 942-04290 942-04244 742-04244 742-04290 (Toothed) 4 Pack

What It Is

The 8TEN LawnRAZOR is a toothed (serrated) mower blade designed for heavy-duty cutting, mulching, and bagging. It’s a direct replacement for MTD/Cub Cadet OEM blades on zero-turn mowers used by homeowners or light commercial operators with tough grass, leaves, or debris.

Fitment & Compatibility

• Deck size: Fits 46-inch cutting decks (models like RZT L46, S46, and similar MTD/Cub Cadet zero-turns).
• OEM cross-references: Replaces 942-04290, 942-04244, 742-04244, 742-04290.
• Measure before buying: Blade length = 18.5 inches, center hole = 7/16 inch, thickness = 0.20 inch. Check your existing blade’s length and hole size—if it’s 18.5” with a 7/16” hole, it fits.
• Not for: Non-MTD decks, smaller 42-inch cuts, or standard (non-zeroturn) riders without verifying center hole and offset.

Key Things to Know

• Quality: Made from 8TEN’s heat-treated boron steel—tougher than stock, but toothed blades can dull faster on clean, short grass.
• Installation: Straight swap if you have the right deck. Use a torque wrench to 40–50 ft-lbs; don’t overtighten.
• Common gotcha: The toothed edge improves mulching but can leave a rougher cut on manicured lawns. Check blade balance after install.
• Pack includes: Four blades (enough for a full deck set). No hardware included—reuse your existing bolts if they’re in good shape.

Should You Buy It

If you own a 46-inch MTD/Cub Cadet zero-turn and need a budget-friendly, durable blade for heavy mulching, leaf shredding, or rough terrain, this 4-pack is a solid value. Skip it if you demand a pristine, golf-course finish—the toothed edge may leave slightly uneven tips on fine grass.