Fennoral 731-09312 19A30013 Mulch Plug for 30" Rear Engine Mini Riders Deck for Troy-Bilt Craftsman MTD Cub C-adet Lawn Mower for LT-30 TB30 TB30R CR30 R-105 R-140 R-1500

What It Is

The Fennoral 731-09312 is a mulch plug that converts a 30-inch rear-engine riding mower deck from side-discharge to mulching mode, allowing grass clippings to be recut and returned to the lawn as fine nutrient-rich material. It replaces OEM part numbers 731-09312 and 19A30013 and is designed for Troy-Bilt, Craftsman, MTD, and Cub Cadet models with 30-inch decks.

Fitment & Compatibility

Before buying, confirm your mower has a 30-inch rear-engine (RER) deck — not a front-engine or zero-turn deck. This plug fits specific models including Troy-Bilt TB30, TB30R, CR30, R-105, R-140, R-1500, and Craftsman/MTD equivalents. Measure your deck’s discharge chute opening (typically ~6 x 4 inches) to ensure the plug’s rubber gasket seals properly. This is an aftermarket part, not OEM, but it matches the original shape and mounting holes. Check your mower’s model number (e.g., 13A-… or 247.…) on the frame or under the seat for exact compatibility.

Key Things to Know

• Quality: Durable rubber and plastic construction, but the gasket may be slightly thinner than OEM — ensure a tight seal to prevent clippings leaking out.
• Installation: Simple, tool-free clip-on design in most cases; just slide the plug into the discharge opening and secure with the existing latch or spring. No deck removal needed.
• Gotcha: Some users report the plug may pop off on rough terrain if the latch is worn — check your mower’s latch condition first. Also, this plug does not include a blade kit; you’ll need mulching blades separately if your mower doesn’t have them.
• Performance: Works well for dry, short grass; heavy or wet clippings may clog without sharp mulching blades.

Should You Buy It

If you have a compatible 30-inch RER mower and want to recycle clippings without buying a full mulching kit, this plug is a cost-effective, easy-to-install solution. It’s ideal for small-to-medium lawns with regular mowing. Avoid if your deck latch is damaged or if you frequently cut tall, damp grass — you’ll get better results with OEM or a dedicated mulching blade set.