Penn parts
 

spare, never got a reply, u still looking for a drag knob?

found these from a local guy.

he says the spool assy on the right is what the number u had is for' but i told him u said it was the conventional knob

if u still need it, let me know

https://i.imgur.com/81jKYZ3l.jpg?1

Check eBay I needed a side knob that fell off my Stradic 5000 and found a bunch of them on eBay. I'm sure they will have it you just need to know the exact part your looking for. The knob cost me about 8 dollars and that's for the part and shipping . But I needed it.