Husqvarna 532405380 Mower Blade for 46-Inch Cut For Husqvarna/Poulan/Roper/Craftsman/Weed Eater

What It Is

This is a replacement mower blade (OEM part 532405380) designed for 46-inch cutting decks on select Husqvarna, Poulan, Roper, Craftsman, and Weed Eater lawn tractors. It’s a standard lift blade for mulching and bagging, not a specialty high-lift or gator blade.

Fitment & Compatibility

Before buying, confirm all three:

• Deck size must be exactly 46 inches. Measure your deck width; this blade won’t fit 42-inch or 54-inch decks.
• Check your mower model number (not just brand) against Husqvarna’s compatibility list for part 532405380—it fits many GTH, LTH, YTH, and GT series tractors, but not all.
• This is an OEM Husqvarna blade, so it directly replaces the original on compatible models. Aftermarket equivalents exist but may vary in thickness or balance.
• Blade length is 20.5 inches center-to-center, with a 5-point star center hole and 0.5-inch diameter. Measure your existing blade’s hole pattern and length to confirm.

Key Things to Know

• Quality: OEM-grade steel with a hardened edge. Holds up well for residential use; not designed for heavy commercial cutting.
• Installation: Requires a torque wrench (40-50 ft-lbs) and a blade removal tool. Don’t over-tighten—stripped spindles are common.
• Gotcha: Some Craftsman 46-inch decks use a different blade pattern (e.g., 532405379). Double-check your old blade’s part number before ordering.
• Balance: New blades are usually balanced, but it’s worth checking with a blade balancer. An unbalanced blade causes vibration and spindle wear.

Should You Buy It

Buy this if you have a 46-inch Husqvarna, Poulan, Roper, Craftsman, or Weed Eater tractor and want a direct OEM replacement with reliable fit and performance. It’s a solid choice for homeowners who mow 1-2 acres weekly and prefer not to gamble on aftermarket fitment. Skip it if you need a mulching-only blade or have a different deck size.