2002 Outback Wagon 2.5L Auto Weather Package
That 'lens only' is what most of us call the taillight assembly. The 'assembly' they are talking about on that page is a complete, plug and play setup. You can buy just the 'lens' and transfer your current bulb, wiring, and the like from your old one. You aren't just replacing the colored plastic outer portion, if that's what you were thinking.