New 46" MOWER DECK MULCH COVER406581, 532406581& FITS POULAN HUSQVARN CRAFTSMAN

What It Is

This is a mulch cover plate (OEM part #406581 / 532406581) that replaces the discharge chute on 46-inch mower decks, converting side-discharge mowers into mulching mowers. It keeps clippings under the deck for finer cutting and nutrient recycling.

Fitment & Compatibility

Before buying, verify three things:

• Deck size: Must be a 46-inch deck (measured blade tip to blade tip). Will not fit 42-inch or 54-inch decks.
• Brand/model: Fits select Poulan, Husqvarna, and Craftsman mowers (e.g., Craftsman 917 series, Husqvarna YTH models). Check your owner’s manual or current part number—if you have OEM #406581 or 532406581, this is a direct match.
• Mounting: Uses two bolts (typically 5/16-inch) and aligns with the existing discharge opening. Measure the distance between mounting holes (approx. 8–9 inches center-to-center) and ensure your deck has a flat flange, not a curved chute lip.

Cross-reference with your mower’s model number (found under seat or on frame). This is an aftermarket cover, not OEM, but uses the same dimensions.

Key Things to Know

• Quality: Steel construction with black powder coat. Holds up well, but may have slight edge burrs—file them down if needed for a flush fit.
• Installation: Easy, 10-minute job. Remove the two bolts holding the discharge chute, swap in the cover, and re-bolt. No drilling or modification required on compatible decks.
• Common gotcha: If your deck has a spring-loaded chute, you must remove the entire chute assembly (including hinge) for the cover to sit flat. Retain the bolts—they may be shorter than the ones included with the cover.
• Performance: Works best with sharp, mulching blades (sold separately). Standard lift blades will leave longer clippings.

Should You Buy It

Buy this if you have a 46-inch Craftsman, Poulan, or Husqvarna mower and want to stop bagging or side-discharging in favor of mulching. It’s a budget-friendly, straightforward upgrade for leaf management or frequent mowing. Skip it if your deck has a non-standard chute design or you need OEM-grade paint finish.