AMP4200 Lawn Mower Mulch Plug Compatible with EGO 42" Z6 Zero Turn Riding Mower ZT4204L ZT4204L Models

What It Is

This is an aftermarket mulch plug designed to block the discharge chute on EGO’s 42-inch Z6 Zero Turn riding mower, converting it from side-discharge to mulching mode. It traps clippings under the deck for finer cutting and nutrient recycling.

Fitment & Compatibility

Before buying, verify your mower model is EGO ZT4204L or ZT4204L-S (the 42-inch Z6 variants). This plug is not OEM—it’s a third-party replacement for the factory part. Check that your deck’s chute opening measures approximately 6.5 x 4 inches (confirm with a tape measure). It will not fit EGO’s 52-inch Z6 or any other brand’s deck. If your mower has a factory-installed chute blocker or bagger kit, you may need to remove those first.

Key Things to Know

• Material quality: Made from durable ABS plastic, but some users report it can warp in direct sunlight or high heat over time. Store indoors if possible.
• Installation difficulty: Very easy—no tools required. Slides into the chute opening and locks with a simple tab; takes under 2 minutes.
• Common gotcha: It may not form a perfect seal on all decks, leading to occasional clippings escaping. Check for gaps after install and trim rubber gasket (if included) for a snug fit.
• Performance: Works well for dry, short grass. Wet or tall grass can clog the deck faster than OEM mulch blades; pairing with sharp blades helps.

Should You Buy It

If you own an EGO 42-inch Z6 and want a cheap, easy way to mulch without buying a full OEM kit, this plug does the job for light-duty mowing. But if you have thick, damp grass or need a perfect seal, consider spending more on the genuine EGO part.