987-02516A Hinged Mulching Plug Assembly Compatible with MTD Cub Cadet S-napper & Troy Bilt TB110 TB130 TB230 Lawn Fits 987-02516 21" Push/Walk Behind Mower Review

Overview

The Cub Cadet 987-02516A Hinged Mulching Plug Assembly is not a lawn mower itself, but a replacement part designed to convert compatible MTD, Cub Cadet, Troy-Bilt, and Snapper push/walk-behind mowers into high-performance mulching machines. Priced at just $12.59 with a stellar 4.5-star average from 357 reviews, this affordable accessory is built for owners of 21-inch mowers like the TB110, TB130, and TB230 who want to recycle grass clippings into nutrient-rich lawn food—without buying a new mower.

Who Should Buy This

Homeowners with MTD/Cub Cadet/Troy-Bilt 21-inch mowers – If you own a TB110, TB130, TB230, or similar model and your original mulching plug is lost, cracked, or missing, this is the exact replacement you need. It’s a direct fit that restores factory mulching performance.

Eco-conscious lawn care enthusiasts – You want to skip bagging and leave clippings on the lawn for natural fertilization. This plug seals the discharge chute so clippings get recut into fine particles that decompose quickly, reducing your need for synthetic fertilizers.

Budget-minded DIYers – At under $13, this is a dirt-cheap way to convert a side-discharge or bagging mower into a mulching machine. No need to buy a whole new mower or expensive aftermarket kit—just swap this in and you’re set.

Homeowners with small to medium lawns (under 1/2 acre) – Mulching works best when you mow frequently and don’t have massive amounts of clippings. If your lawn is manageable and you mow weekly, this plug helps you maintain a clean, clippings-free look without bagging.

Key Features Breakdown

Hinged Design – The plug features a built-in hinge that lets it pivot out of the way when you switch to bagging or side discharge. This is a huge convenience upgrade over older rigid plugs that required complete removal. You can swap modes in seconds without tools.

Compatibility with 987-02516 and 21-inch mowers – This part is engineered to fit a broad range of MTD-built mowers, including Cub Cadet SC100, SC300, and Troy-Bilt TB110/TB130/TB230 series. Always double-check your model number, but the vast majority of 21-inch push mowers from these brands use the same mounting points.

Durable plastic construction – Made from impact-resistant polymer that holds up to UV exposure and repeated flexing. It won’t rust, warp, or crack under normal use, unlike some cheap knockoffs that get brittle after a season in the sun.

Precision fitment – The plug snaps securely into the discharge chute with a tight seal. This prevents clippings from escaping and ensures they’re recirculated under the deck for fine cutting. A loose fit would ruin mulching performance, and reviewers consistently praise the snug, rattle-free installation.

Lightweight and easy to install – Weighs just a few ounces and requires no tools. You simply open the mower’s discharge door, slide the plug into place, and close the door to lock it. Removal is equally simple—pop the door open and lift it out.

Pros

1. Direct fit for most 21-inch MTD/Cub Cadet/Troy-Bilt mowers – No modification, drilling, or adapter needed. It’s a true OEM replacement that works exactly like the original part.

2. Hinged design makes mode switching effortless – You can go from mulching to bagging to side discharge without removing the plug entirely. Just flip it out of the way.

3. Under $13 – ridiculously affordable – Compare this to $30+ for some aftermarket kits or $200+ for a new mulching mower. It’s a no-brainer upgrade if your plug is missing or damaged.

4. Improves lawn health naturally – Mulching returns nitrogen-rich clippings to the soil, reducing fertilizer needs by up to 25%. This plug makes that possible on mowers that otherwise only bag or discharge.

5. Robust plastic resists cracking – Unlike some cheap plugs that snap after a few uses, this one is thick and flexible enough to handle the impact of sticks and debris without breaking.

6. Thousands of positive reviews confirm durability – With 357 ratings and a 4.5-star average, the overwhelming consensus is that this part lasts and fits correctly.

Cons

1. Not universal – only fits specific models – If you have a different brand (Honda, Toro, John Deere) or a non-MTD mower, this won’t work. Check compatibility before buying.

2. Hinge can loosen over time – A few reviewers note that after heavy use, the hinge pin can wear, making the plug wobble or fall out. It’s not common, but it’s worth monitoring.

3. Doesn’t improve mulching without a proper blade – The plug only works well if you’re also using a mulching blade (sold separately). If your mower has a standard lift blade, clippings may still be coarse. This is a limitation of the system, not the plug itself.

4. May require cleaning after wet grass – Wet clippings can clog the chute area, and the hinged plug can get gummed up. You’ll need to scrape it clean occasionally, especially in spring.

Bottom Line

The Cub Cadet 987-02516A Hinged Mulching Plug Assembly is a fantastic value for anyone who owns a compatible 21-inch MTD, Cub Cadet, or Troy-Bilt mower and wants to mulch without buying new equipment. For $12.59, you get a simple, durable part that restores factory mulching capability, saves time on bagging, and feeds your lawn naturally. While it’s not universal and works best with a mulching blade, the positive reviews and rock-bottom price make it a clear recommendation for budget-conscious homeowners who already own one of these popular mowers. If your plug is missing or broken, buy this—you won’t regret it.

Frequently Asked Questions

Q: Will this fit my Troy-Bilt TB230?
A: Yes, the TB230 is one of the primary compatible models. As long as your mower has a 21-inch deck, this plug should snap right in. If you have a different model (e.g., TB240 or TB330), double-check the deck size and look up your mower’s parts diagram to confirm the plug shape matches.

Q: Do I need to buy anything else for mulching to work well?
A: Ideally, yes—pair this plug with a dedicated mulching blade (often sold separately for $10–15). The plug recirculates clippings, but a mulching blade with curved, serrated edges cuts them finer