Best Lawn Mower Mulch Covers for Cleaner, Healthier Lawns
If you’re looking to turn your mower into a mulch-creating machine, a mulch cover can be a smart upgrade. This guide highlights top mulch cover options that fit common 42″ to 21″ mowers, identifying who each product is best for and why it’s a strong pick. Use these picks to minimize clippings cleanup and return nutrients to your soil.
| Product | Best For | Key Benefit |
|---|---|---|
| Hinged Mulch Plug 987-02516A (21″) | Owners with older MTD/Troy-Bilt/Cub Cadet walk-behind mowers | Wide compatibility and easy hinge design for mulching without frequent removal |
| 42” Deck Mulch Cover for John Deere Decks | Owners of John Deere 42″ decks and similar large decks | Broad deck compatibility; converts standard discharge to mulch |
| KUAFU Mulching Cover for 42″/46″ Decks | Tractor users needing durable PP housing | High abrasion resistance; supports efficient mulching on mid-size decks |
| Hinged Mulching Plug (987-02516A) for TB/Troy-Bilt/Cub Cadet | Multiple MTD-family mowers needing a plug upgrade | Good plug compatibility across several brands |
| 987-02516A / 687-0251 Hinged Mulch Plug for TB/TB130/ TB230 | TB110 to TB230 series owners | Flexible replacement part with broad TB compatibility |
Hinged Mulch Plug 987-02516A Compatible with 21″ Mowers

This hinged mulch plug is designed for 21″ mowers and cross-brands, including MTD and Troy-Bilt. Best for owners who need a simple, compatible mulching solution without modifying deck components. The included part numbers (987-02516A, 987-02516, 687-02516, and 68702516) indicate broad compatibility with common 11A and 12A-series models. A caveat: verify exact model fit before purchase to avoid incompatible deck configurations.
42” Deck Mulch Cover for John Deere X110 X120

This mulch cover is tailored for John Deere 42″ decks and similar medium to large mower decks. It’s best for John Deere and Scotts tractors in the 102–135 series, plus LA-series lawn tractors. The kit promotes efficient mulching, returning nutrients to soil and reducing clippings cleanup. A limitation is its broad compatibility; check deck measurements to ensure a precise match with your model.
KUAFU Mulching Cover for 42″/46″ Decks

KUAFU’s mulch cover fits 42″ and 46″ decks and is compatible with Cub Cadet, Troy-Bilt, and Craftsman equipment. Made from high-quality PP, it emphasizes impact resistance and durability. It’s best for homeowners upgrading mid-size lawn tractors who want an economical, durable mulch option. Note that exact deck fit and installation steps should align with your mower’s specifications to avoid misfit or performance issues.
Hinged Mulching Plug 987-02516A for MTD/Troy Bilt/Cub Cadet

This hinged plug replaces multiple part numbers (987-02516A, 987-02516, 687-02516, 68702516) and works across several MTD-family models. Best for owners who want a versatile plug solution that can cover multiple mower lines. A potential limitation is model-specific fit; slight variations in mounting hardware can affect installation.
987-02516A 687-0251 Hinged Mulch Plug for TB110–TB230

Designed for TB110 through TB230 series, this hinged mulch plug is a compatible replacement for a range of 21″ and mid-sized mowers. It’s best for buyers who own or operate multiple Troy-Bilt or MTD models and want standardized parts. A caution: verify the exact TB model year and deck size to ensure full compatibility with your mower’s mounting hardware.
Buying Guide
- Deck compatibility matters. Check your mower’s deck width and model family (MTD, Troy-Bilt, John Deere, Cub Cadet, etc.). Mulch covers and plugs are often designed for specific deck sizes and mounting interfaces.
- Conversion versus replacement parts. Some covers convert discharge decks to mulch systems; others are hinge plugs that adapt the existing deck. Choose based on whether you want full mulching capability or a simple conversion accessory.
- Material and durability. Look for high-quality plastics (PP or similar) with abrasion resistance, especially if you mow on rough terrain or frequent mulch cycles.
- Installation ease. Favor designs with clear installation steps and universally compatible hardware where possible to reduce downtime.
- Maintenance and longevity. Consider whether the cover is easy to inspect for cracks and whether it resists UV exposure to extend service life.
Frequently Asked Questions
- What is a mulch cover for a lawn mower? It is an accessory that enables the mower to mulch grass clippings instead of ejecting them, returning nutrients to the soil.
- Will a mulch cover fit any mower? No. Fit depends on deck width, brand, and model family. Always verify part numbers and compatibility lists.
- Are mulch covers universal? Some are widely compatible within a brand family, while others are deck-specific. Always confirm with the manufacturer’s listing and your mower’s manual.
- What is the difference between a mulch plug and a mulch cover? A mulch plug blocks the discharge path so clippings mulch inside the deck; a mulch cover typically alters flow or provides a mulching pathway for more efficient cutting.
- Do mulching covers improve lawn health? Mulching leaves grass clippings on the lawn, which can return nutrients to the soil and reduce cleanup time, assuming clippings are fine and evenly distributed.