AMP4200 Mulch Plug for EGO Power 42-inch Z6 Zero Turn Riding Mower Fits for ZT4204L Model

What It Is

The AMP4200 Mulch Plug is a rear discharge cover designed to convert your EGO Z6 zero-turn mower from bagging or side-discharge to mulching mode. It specifically fits the 42-inch deck on the ZT4204L model, allowing grass clippings to be recut and dropped as fine nutrient-rich mulch.

Fitment & Compatibility

Before buying, confirm your mower is the EGO Power 42-inch Z6 Zero Turn Riding Mower model ZT4204L (not the ZT4200L or ZT4202L). Measure your deck discharge opening: it should be approximately 7.5 inches wide and 5 inches tall. This is an OEM EGO part (not aftermarket), so it will match factory mounting holes and latch design. Double-check that your mower currently has the rear discharge chute installed (the plug replaces it). It will not fit 52-inch decks or older Z6 models without the same discharge port geometry.

Key Things to Know

• Installation is tool-free: The plug snaps into the rear discharge opening using a built-in latch. No screws or bolts required.
• Switch to high-lift blades for best results: The stock blades are fine, but EGO’s high-lift mulching blades (sold separately) improve recirculation and cut quality.
• Cleaning matters: Debris buildup on the plug’s seal can cause poor fit or clumping. Rinse after each use.
• Check latch alignment: If the plug feels loose, the latch might not be fully seated—push firmly until you hear a click. A loose plug will leak clippings and reduce mulching efficiency.

Should You Buy It

If you own the EGO ZT4204L and want to mulch leaves or grass without bagging (saving time and returning nutrients to the lawn), this plug is a simple, low-cost upgrade. It’s ideal for frequent mulchers who prefer a clean, tool-free swap. Skip it if you primarily side-discharge or bag—you won’t need the plug.