You can find everything you want to know about the 986 Cigarette Lighter
here.
The US Spec Lighter Part Numbers, that came standard on MY 02-04:
996.652.101.10.A05 Socket -- Sunset price $8.28 (as of 2008) A05 is Matte, A02 is Gloss finish.
996.652.102.10 Lighter Surround -- Sunset price $4.52 (as of 2008)
I can't seem to find the part number for the 97-01 lighter, Euro Spec, I am not sure you can buy them anymore. The socket comes with the lighter plug, if that is all you want. The non-smoker kit is also a different PN (996.652.103.00).