[Chboro]

First, thanks to those who answered my previous post on where to get part numbers. Being a new Boxster owner I am unfamiliar with the multiple part numbers for the same item. Can someone help me understand how this works? Lets use the Front Bumper cover (or as they call it 'lining' in the catalog) as an example. It is showing 4 part numbers; 986.505.311.03, 04, 05 & 06. Each one says G2X prime coated. I realize it is prime coated. That's not an issue. I have a 2001 Boxster S. Recently received a quote to repair a crack in the lower section of this cover and maybe thinking of just going with a new one and have the paint matched. Lastly, how do I find out what years use the same part?