Husqvarna 532406712 Replacement Lawn Mower Blade for 21-inch For Husqvarna/Poulan/Roper/Craftsman/Weed Eater

What It Is

This is a replacement 21-inch lawn mower blade (part #532406712) designed for walk-behind mowers from Husqvarna, Poulan, Roper, Craftsman, and Weed Eater. It’s a standard straight-edge blade for general mulching and bagging.

Fitment & Compatibility

Before buying, verify these three things:

• Deck size: Only fits 21-inch cutting decks. Measure your deck width; a 20-inch or 22-inch deck won’t work.
• Model numbers: Check your mower’s model number (often under the seat or on the deck). This blade fits hundreds of models across Husqvarna, Poulan Pro, Craftsman (especially 917 series), Roper, and Weed Eater. Use the manufacturer’s online parts lookup with your model number to confirm.
• Center hole & blade offset: This blade has a 5-point star center hole (common on these brands) and a 0.5-inch offset. If your mower uses a different hole shape or offset, it won’t mount securely.
• OEM vs aftermarket: This is an OEM Husqvarna part, so it matches original specs exactly. Aftermarket blades may vary in thickness or balance.

Key Things to Know

• Quality: 4.6 stars from 775 reviews indicates consistent sharpness and durability. Users report it lasts a full season with regular use.
• Installation: Easy for DIYers—requires only a socket wrench and a block of wood to jam the blade. Torque to 35-50 ft-lbs. No special tools needed.
• Common gotcha: The blade is sold individually, not as a set. If your mower uses two blades (unlikely on 21-inch models), you’ll need two.
• Balance check: After installing, spin the blade to ensure it’s balanced. An unbalanced blade causes vibration and poor cut. If it wobbles, replace it.

Should You Buy It

If you own a 21-inch walk-behind from Husqvarna, Poulan, Craftsman, or similar brands and need a direct OEM replacement with proven reliability, this blade is a solid choice. It’s not for zero-turn mowers, riding mowers, or decks larger than 21 inches. For the price and rating, it’s a safe, no-hassle buy.