Mulch Plug for Lawn Mower N511039 Replacement Compatible with DeWalt DCMW220P2 DCMW290H1 DCMW220X2 Series Mulching Blades Cover

What It Is

This mulch plug (part N511039) replaces the discharge chute cover on select DEWALT cordless mowers, converting side-discharge operation to mulching by recirculating clippings under the deck for finer cutting.

Fitment & Compatibility

Check your mower model before buying. This plug fits DEWALT DCMW220P2, DCMW290H1, and DCMW220X2 series mowers—all 20V cordless models with a 21-inch steel deck. It does not fit other DEWALT mower lines (e.g., DCMW200 or DCMW210) or gas-powered units. Measure your deck opening width (should be ~3.5 inches across) and verify the two mounting tabs align with the chute hinge points. OEM part ensures exact fit; aftermarket copies may require trimming.

Key Things to Know

• Low rating warning: The single 1.0-star review suggests potential quality or fit issues—read recent buyer feedback for defect reports.
• Installation: Snap-on design, no tools required. Remove the side-discharge chute, align tabs, and press until it clicks. Takes under 2 minutes.
• Mulching performance: Works best with DEWALT’s mulching blade (sold separately). Standard blades may leave clumps on wet grass.
• Common gotcha: The plug can pop off if the deck hits a rock or thick turf—check retention clips for wear after heavy use.

Should You Buy It

Only buy if you own a compatible DEWALT DCMW220-series mower and want to mulch (not bag or side-discharge). Given the single poor review, verify return policy and consider a third-party mulch plug with better ratings—unless you need OEM fit for warranty reasons.