Original Equipment Grass Mulching Attachment for John Deere S100 S110 S120 S130 S1642 S1742 X105 X106 X107 X110 X120 X125 X126 X145 X300 X304 X310

What It Is

This is an Original Equipment grass mulching attachment (blade/cover kit) designed for select John Deere S100, X100, X300, and X304 series lawn tractors. It replaces the standard discharge or bagging setup to finely chop clippings and return them to the lawn as natural fertilizer.

Fitment & Compatibility

Deck size is critical. This attachment is designed for 42-inch Edge™ cutting decks only. It will NOT fit 48-inch or 54-inch decks. Before buying, confirm your tractor model has a 42-inch deck (stamped on the deck housing or in your manual).

Exact model fit: S100, S110, S120, S130, S1642, S1742, X105, X106, X107, X110, X120, X125, X126, X145, X300, X304, X310 (all with 42" deck). Does not fit X305R, X350, X370, or X500 series.

OEM vs. aftermarket: This is genuine John Deere (Original Equipment), not a third-party brand. Expect precise fit and same materials as factory-installed parts.

What’s included: Typically includes a mulching blade (or blade set) and a blocking plate/cover to seal the discharge chute. Verify kit contents in the product listing.

Measurements: Blade length is ~21 inches (check your current blade for confirmation). Cover plate dimensions match the 42" deck discharge opening.

Key Things to Know

• Installation is straightforward – involves swapping the blade(s) and bolting on the discharge cover. Basic hand tools (socket wrench, torque wrench) and a jack/ramp for safe deck access are all you need.
• Mulching performance depends on mowing frequency – works best when you cut no more than 1/3 of grass height at a time. Tall, wet grass will clump.
• No bagging option with this attachment – once installed, you cannot switch to bagging without removing the cover plate. If you need both, consider a quick-change kit.
• Blade sharpness matters – a dull mulching blade tears grass instead of cutting it, leading to poor mulching and lawn stress. Sharpen or replace annually.

Should You Buy It

If you own one of the listed John Deere tractors with a 42-inch deck and want to recycle clippings for a healthier lawn without spending on bags or disposal, this OEM kit is a reliable, no-guess choice. It’s ideal for homeowners who mow weekly and prefer low-effort lawn nutrition over bagging. Skip it if you need to collect clippings or have a larger deck.