We just bought a new LG LTC24380ST single door refrigerator with an ice maker. It was delivered yesterday. When I pulled the refrigerator out to hook up the water supply to the ice maker tonight, I found this part on the floor. I suppose it's possible that it came off our old refrigerator but that is extremely doubtful because the part is pristine and looks like it has never been used. Also, I had pulled out our old refrigerator to clean the floor before delivery of the new one and there was nothing on the floor then. The little black pulley on the part winds up and, when released, it spins back while a little white nylon cam or post on the opposite side rotates in a planetary fashion. I would greatly appreciate it if someone can tell me what this is. Unlike in the past, the owner's manual does not have parts diagrams. I don't know if the ice maker is working yet because I just turned it on. However, I didn't touch anything or open any panels when I hooked up the water supply.