I'm looking for a mulch plug for my Craftsman 917.274822 but am not having very good luck. I emailed Sears and asked them about it and they gave me a part number..... that doesn't exist, at least not on their own web site. Apparently my 6 year old mower is "too old". EVERYTHING I have found researching on line is the correct mulch plug WITH blades!! I just need the plug and am becoming frustrated. I have tried Ebay and Craigslist with no luck. I'm not sure what, if any, other brands are compatible so I can't even go that route. Very frustrating.....