I noticed that only half my seat back in my 2017 chevy silverado went up and down. When I looked into it I realized that one of the 2 gears on the seat frame must be stripped out. I have a picture of the part but I can't find anything on the number that comes up. Anyone know what this part is called and if you can order a new one? The full number is m19116100928d

 

doubtful that you'll be able to buy just the sprocket. It'll probably come as an adjuster assembly