541643002 Mulch Plug Replacement Compatible with Ryobi 40 volt Cordless Mowers Fits RY401020 RY401016 RY401015 RY401014 Models -Household Lawn Mower Mulch Plug Replacement

What It Is

This is a replacement mulch plug that blocks the grass discharge chute on select Ryobi 40V cordless mowers, forcing clippings to recirculate and drop as fine mulch. It’s designed for mulching, not bagging or side-discharge use.

Fitment & Compatibility

Before buying, confirm your mower model is on this exact list: RY401020, RY401016, RY401015, or RY401014. These are all 40V Ryobi mowers with a 20-inch or 21-inch steel deck. The plug is a direct replacement for OEM part 541643002—no modifications needed. Measure your mower’s discharge opening width (roughly 7–8 inches) to verify it matches. Do not assume it fits other Ryobi 40V models outside this series; the plug shape and latch points vary.

Key Things to Buy

• Quality: This is an aftermarket part, not OEM Ryobi. Reviewers note it fits snugly but the rubber seal may be slightly thinner than original. It works fine for occasional use but may wear faster with heavy mowing.
• Installation: Tool-free—slides into the discharge chute and locks with the existing latch. Takes under 30 seconds. No screws or adapters.
• Common gotchas: If your mower has a side-discharge chute still attached, remove it first. The plug only works when the rear bag is off. Also, check that the latch on your mower isn’t broken—this plug won’t fix a damaged latch mechanism.
• Performance: Expect decent mulching in dry grass. Wet or tall grass may clog more than with an OEM plug.

Should You Buy It

If you own one of the listed Ryobi 40V models and want a cheap, quick way to switch from bagging to mulching, this plug does the job. It’s a solid budget alternative to the OEM part, especially for light-to-moderate lawn care. Skip it if you need heavy-duty mulching or have a different Ryobi 40V model.