Product review (5 stars): Exact part I was looking for!
The Sears Parts store wanted at least double what was offered to me through Amazon.  The seller shipped it so fast, I received the item withing three days of ordering it.  It's not just a plastic knob either like the machine initially came with, but is made out of steel (which means I won't have to worry about it breaking)  No more having to use pliers!