Caltric 42" Deck Mulch Cover Compatible With John Deere S100 S110 S120 S130 X105 X106 X110 X120

What It Is

The Caltric 42" Deck Mulch Cover is an aftermarket accessory designed to block the discharge chute on a 42-inch mower deck, converting it from side-discharge or bagging to mulching mode. It’s intended for select John Deere lawn tractors with a 42-inch fabricated or stamped deck.

Fitment & Compatibility

Before buying, verify your mower has a 42-inch deck (measure deck width, not cutting width). This cover fits John Deere S100, S110, S120, S130, X105, X106, X110, and X120 models, but only those with the 42-inch deck option (some S/X series come with 42" or 48" decks). Check your model’s deck part number—this cover replaces OEM part GX20072. It’s an aftermarket part, so expect slight fit differences vs. genuine John Deere. Ensure your deck has a standard discharge chute mounting bracket (two bolt holes on the chute opening). No modifications needed for most 42" decks, but older or non-listed models may require drilling or shimming.

Key Things to Know

• Quality concerns: Some users report thin plastic that can warp or crack under heat or sun exposure. The 3.6/5 rating reflects inconsistent durability.
• Installation is easy: Typically bolts directly onto existing discharge chute holes with included hardware. No tools beyond a socket wrench required.
• Mulching performance: Works best with a mulching blade kit (sold separately). Without it, grass clippings may clump or leave streaks.
• Fitment gotcha: If your deck has a spring-loaded discharge deflector, you may need to remove it or adjust the cover’s position to avoid interference.

Should You Buy It

Buy this if you have a compatible John Deere with a 42" deck, want a budget-friendly mulching option, and are okay with occasional fit tweaks or replacing it after a season or two. Skip it if you need heavy-duty construction or a perfect OEM fit—spend more on a genuine John Deere GX20072 cover for better longevity.