532403107 Mower Blade Compatible with Hus qvarna YTH22V46 YTH20K46 46'' Deck - Mulching Blade for Craftsman T2400, Pou LAN PB20A46, PP22VH46, Replace 531309715, 532405380, 575937901-2 Pack

What It Is

This is a 2-pack of aftermarket mulching blades designed for 46-inch cutting decks, primarily compatible with select Husqvarna, Craftsman, Poulan Pro, and similar lawn tractors. Mulching blades feature a curved, high-lift design that recirculates clippings for finer cutting and natural lawn fertilization.

Fitment & Compatibility

Before buying, confirm these specifics:

• Deck size: Fits only 46-inch (46") cutting decks—not 42", 48", or 54".
• Model list: Works with Husqvarna YTH22V46, YTH20K46; Craftsman T2400; Poulan Pro PB20A46, PP22VH46. Verify your model number on the tractor’s data tag (usually under the seat or on the frame).
• OEM replacements: Replaces Husqvarna/Craftsman part numbers 531309715, 532405380, and 575937901.
• Measurements: Check blade length (approx. 20.5 inches), center hole diameter (commonly 1" or 7/8"), and thickness (typically 0.25"). Measure your old blade or consult your manual—aftermarket blades can vary slightly.
• Deck type: Designed for stamped or fabricated 46" decks with standard spindle mounts. Avoid for zero-turn or offset decks unless confirmed.

Key Things to Know

• Quality: Aftermarket blades are generally good for residential use, but may not match OEM steel hardness or edge retention. Inspect for warping or thin spots before installing.
• Installation difficulty: Easy—requires a socket wrench, torque wrench (set to 70-90 ft-lbs), and a block of wood to hold the blade. Always replace blades in pairs for balanced cutting.
• Common gotchas: Mulching blades require a dedicated mulching kit (or a plugged discharge chute) to work effectively—they don’t bag or side-discharge well. Also, check spindle nut size (usually 5/8" or 3/4") before starting.
• Performance: Expect finer clippings but slightly reduced lift compared to standard blades, especially in tall or wet grass. Not ideal for heavy bagging.

Should You Buy It

If you own one of the listed 46-inch deck tractors and want affordable mulching blades for a cleaner lawn finish, this 2-pack delivers good value for the price. However, if you primarily bag or discharge clippings, stick with standard lift blades. For heavy-duty or commercial use, consider OEM blades for longer life.