GY00115 Deck Mulch Cover Compatible with John Deere 102 105 115 125 135 L100 L105 L107 L108 L110 L111 L118 L120 Lawn Tractors D100 D105 D110 D120 D125 D130 100 Series Tractors

What It Is

The GY00115 deck mulch cover is an aftermarket accessory that replaces the side-discharge chute on select John Deere lawn tractors and 100 Series models, converting the mower deck to a mulching setup. It’s designed for use with 42-inch and 48-inch cutting decks.

Fitment & Compatibility

Before buying, confirm your deck size—this cover fits John Deere 42-inch (Accel Deep) and 48-inch (Edge) decks, but not 54-inch models. Check your tractor model against the list: John Deere 102, 105, 115, 125, 135, L100, L105, L107, L108, L110, L111, L118, L120, and D100–D130 series. It’s an aftermarket part, not OEM, so verify the mounting hole spacing (two bolt holes, 3.5 inches center-to-center) matches your chute bracket. Measure your existing chute width at the deck opening—should be about 6.5 inches. Does not fit older 300/400 series or X300/X500 series.

Key Things to Know

• Installation is simple: Remove the side-discharge chute (two bolts/nuts), attach the mulch cover, and tighten. No drilling or special tools needed; takes under 10 minutes.
• Quality note: This is a budget-friendly plastic cover—it’s rigid but can crack if overtightened or hit hard. Hand-tighten bolts to avoid stress fractures.
• Mulching performance depends on blades: For best results, swap to dedicated mulching blades (e.g., John Deere M155181 or aftermarket equivalents). The cover alone won’t mulch fine clippings without the right blade profile.
• Common gotcha: Some users report a loose fit on older decks or aftermarket brackets. Check for warped or bent mounting tabs before installation—file or bend back to flat if needed.

Should You Buy It

Buy this if you have a compatible John Deere 100 Series or D100-D130 tractor with a 42” or 48” deck and want an affordable way to switch from side-discharge to mulching. It’s a good value for occasional mulching, but if you need heavy-duty durability or professional-grade mulching, consider an OEM part or a steel cover. Ideal for homeowners who prioritize cost and simplicity over premium build.