Toro Genuine Exmark 120-5225 Mulch Plug 30" Timemaster/Turfmaster Lawn Mowers

What It Is

The Toro Genuine Exmark 120-5225 Mulch Plug is a factory-made insert that blocks the side discharge chute on 30-inch Timemaster and Turfmaster mowers, forcing grass clippings to recirculate under the deck for finer mulching instead of ejecting them onto the lawn.

Fitment & Compatibility

• Deck size: Fits only 30-inch cutting decks on Toro Timemaster and Turfmaster models.
• Model check: Confirm your mower is a 30" Timemaster (e.g., 21199, 21200) or Turfmaster (e.g., 30100, 30101). Exmark 30" models (e.g., LZ30KC) also use this plug.
• OEM vs aftermarket: This is a Toro Genuine part, not a generic. Aftermarket plugs may not seal tightly, causing poor mulching or clogs.
• Measurements: Roughly 12" x 6" x 3" with a rubber gasket lip; verify your chute opening matches before buying.
• What to check: Look under your mower—if the discharge chute has two screw holes on the side, this plug should fit. No other deck sizes or brands work.

Key Things to Know

• Installation difficulty: Easy—remove the two screws holding the discharge deflector, slide the plug into the chute opening, and reinstall the screws through the plug’s mounting tabs. Takes 5 minutes.
• Quality: Thick, durable plastic with a rubber seal that reduces leakage. Holds up to repeated use without cracking or warping, unlike some thin aftermarket versions.
• Common gotcha: The plug can pop loose if the rubber gasket isn’t fully seated. Push it in firmly until you hear it click into place. Also, never run the mower with both the plug and bagger installed—clogs the deck.
• Performance tip: For best mulching, keep your blade sharp and mow when grass is dry; wet clippings will clump even with the plug.

Should You Buy It

Buy this if you own a 30" Toro Timemaster or Turfmaster and want to convert from side-discharge to mulching without buying a full mulching kit. It’s a cheap, simple solution for cleaner lawns and fewer clippings to rake, especially if you mow frequently and keep blades sharp. Skip it if you prefer bagging or have a different deck size.