403107 Mulching Blade Compatible with 46 Inch Deck H usqvarna YTH22V46 YTH20K46 Z246, C Raftsman, Pou LAN - Replace 532403107 405380 532405380, 2 Pack

What It Is

This is a 2-pack of aftermarket mulching blades designed for 46-inch cutting decks on select Husqvarna, Craftsman, and Poulan Pro lawn tractors and zero-turn mowers. They replace OEM part numbers 532403107, 405380, and 532405380, and are meant for mulching grass clippings into fine particles for nutrient recycling.

Fitment & Compatibility

Before buying, confirm your mower has a 46-inch deck—not 42 or 48 inches. The blade measures approximately 20.5 inches long with a 1-inch center hole and 0.25-inch thickness. Fitment includes Husqvarna YTH22V46, YTH20K46, Z246; Craftsman 917 series; and Poulan Pro models with 46-inch decks. Cross-reference your OEM blade number (403107, 405380, or 532405380) to ensure compatibility. Due to aftermarket variance, verify bolt pattern and offset—some users report needing to adjust blade alignment.

Key Things to Know

• Quality: 4.4 stars from 10 reviews—good for the price, but sharpness and balance may vary. Check blade balance before installation.
• Installation: Moderate difficulty. Requires wrenching; use a torque wrench (recommended 70-85 ft-lbs). Lift deck safely and block wheels.
• Gotchas: Aftermarket blades may not seat perfectly on all spindles. Check for warping or off-center holes. Mulching blades need sharper edges than standard lift blades—if your deck is clogged, clean it first.
• Performance: Best for dry grass; wet clumping can reduce mulching efficiency.

Should You Buy It

This is a solid budget pick for DIY homeowners with compatible 46-inch Husqvarna, Craftsman, or Poulan Pro mowers who want affordable mulching blades. It’s not for commercial use or if you expect OEM precision—check balance and fitment carefully. If you need reliability for frequent mowing, consider OEM or a higher-rated aftermarket brand.