KUAFU Tractor Mulching Cover Compatible with Lawn Mowers w/ 42" & 46'' Decks Cub Cadet RZT-42 Troy-Bilt TB46 Craftsman T2100 Replacement for 631-05195A Mulch kit Mulch Plug Attachment Black Plastic PP

What It Is

This is a plastic mulching plug that replaces the side-discharge chute on select 42-inch and 46-inch lawn tractor decks. It keeps clippings under the deck for finer cutting and nutrient recycling, ideal for frequent mowing.

Fitment & Compatibility

Before buying, confirm your deck size (42" or 46") and check your model against the claimed compatibility list: Cub Cadet RZT-42, Troy-Bilt TB46, Craftsman T2100, and any tractor using OEM part 631-05195A. Measure your deck’s discharge opening width and height—this plug fits a 5.5" x 3.5" rectangular port. It will not work on 54" or 60" decks, or on zero-turn models with different discharge shapes. Verify your deck is a stamped steel or fabricated deck with a standard side chute mount, not a deep-deck or high-lift design.

Key Things to Know

• Material & Build: Made of black polypropylene (PP), it’s lightweight and UV-resistant but can crack if overtightened or hit by debris. Check for warping after a full season.
• Installation: Tool-free snap-on design—align tabs, press firmly, and secure with the existing latch or bolt. Takes under 2 minutes if the deck is clean.
• Common Gotchas: May not seal perfectly on older decks with worn gaskets; add a foam strip if clippings leak. Some users report it’s slightly loose on non-Cub Cadet models—use a zip tie as a backup.
• Performance: Works best with a dedicated mulching blade (not included). On thick, wet grass it can clog; mow dry, cut no more than 1/3 of blade height.

Should You Buy It

Buy this if you have a compatible 42" or 46" deck and want a cheap, easy way to convert from side-discharge to mulching without buying a full kit. It’s a solid budget fix for light-duty mowing, but skip it if you need a sealed, heavy-duty plug for rough terrain or commercial use.