Mulch Cover Kit 532406581 Compatible with 46-Inch Lawn Tractor Deck – Fits Husqvarna/Craftsman Model 917 – Includes Mounting Hardware

What It Is

A mulch cover kit (OEM part #532406581) that replaces the discharge chute on a 46-inch lawn tractor deck, allowing grass clippings to recirculate and be finely chopped for natural lawn fertilization. Designed for use with Husqvarna and Craftsman Model 917 series riding mowers.

Fitment & Compatibility

• Deck size: 46-inch cutting deck only. Measure your deck width from blade tip to blade tip—this kit won’t fit 42-inch or 54-inch decks.
• Brand/models: Fits most Husqvarna and Craftsman (Model 917) lawn tractors with a 46-inch stamped steel deck, including models like Craftsman 917.xxxxx and Husqvarna YTH22V46, GTH26V46, or similar. Check your owner’s manual or look up your model number under the seat.
• OEM vs aftermarket: This is an aftermarket kit compatible with OEM part 532406581. It includes the cover plate, gasket, and mounting hardware. Not a direct OEM replacement—verify your existing chute mounting pattern matches.
• Measurements: Cover plate is roughly 12 x 6 inches. Mounting holes are spaced 4 inches apart center-to-center. Confirm your deck’s discharge opening matches.

Key Things to Know

• Installation difficulty: Easy—takes 10-15 minutes with basic hand tools (socket or wrench). Remove the existing discharge chute, place the gasket, bolt on the cover, and tighten.
• Quality: User reviews (4.7/5, 24 ratings) note the gasket seals well and hardware fits properly. Some report the paint finish may chip over time, but it doesn’t affect function.
• Common gotcha: The gasket must be seated flat against the deck—any gap will leak clippings and reduce mulching effectiveness. Also, this kit blocks side discharge; you cannot use a bagger simultaneously.
• Performance: Works best with a sharp mulching blade (not included). If your deck still has standard lift blades, upgrade to mulching blades for finer cut.

Should You Buy It

If you own a 46-inch Craftsman or Husqvarna lawn tractor and want to mulch instead of bag or side-discharge, this kit is a low-cost, easy-install upgrade. It’s ideal for homeowners who mow weekly and want natural fertilization without buying a dedicated mulching deck. Avoid if you need to switch between bagging and mulching frequently—you’ll have to remove the cover each time.