631-05195 631-05195A Lawn Mower Mulch Plug Kit Compatible with MTD Cub Cadet Craftsman 42" 46" Lawn Mower, for 2012 and After, Fits 63105195A 19A30055100 LTX-1046VT LTX-1050KH LTX-1045 Model

What It Is

This is a replacement mulch plug kit (OEM #631-05195 / 631-05195A) designed to block the discharge chute on select MTD, Cub Cadet, and Craftsman riding mowers, converting side-discharge decks to mulching mode. It’s intended for 42" and 46" cutting decks on 2012 and newer models.

Fitment & Compatibility

Before buying, confirm your mower deck size (42" or 46") and model year (2012+). This kit fits specific series including Cub Cadet LTX-1046VT, LTX-1050KH, LTX-1045, and Craftsman equivalents with a 42" or 46" fabricated deck. Check your deck’s discharge opening shape and bolt pattern—some earlier decks (pre-2012) use a different plug design. The kit includes a plastic plug and two bolts; measure your existing bolt spacing (typically 4–5 inches apart) to ensure match. This is an aftermarket part, not OEM, but it’s listed as a direct replacement for the original Cub Cadet part.

Key Things to Know

• Quality: Made of durable ABS plastic, but some users report the fit can be slightly loose or require minor trimming on certain decks. Check for warping if stored in direct sun.
• Installation: Easy—remove the side-discharge chute (if present), align the plug over the opening, and secure with the included bolts. No special tools needed.
• Common gotchas: On some 46" decks, the plug may interfere with the belt guard—verify clearance. Also, this kit does not include a mulch blade; you’ll need to buy or swap to a mulching blade for effective cutting.
• Compatibility: Works only on decks with the rectangular discharge opening; not for stamped steel decks or older models with a round outlet.

Should You Buy It

Buy this if you have a 2012+ MTD/Cub Cadet/Craftsman 42" or 46" riding mower and want a cheap, easy way to mulch grass clippings instead of bagging or side-discharging. It’s a good value for the price, but skip it if your deck is pre-2012 or if you expect a perfect OEM-grade fit—some adjustment may be needed.