For my 93 SSE they have 2 kits, one is called a partial kit retail is
$97.13 it includes air hose, gauge, and adapters for filling different items (balls, tires, etc.). The second is the complete kit, it contains: Unknown, no description given. It retails for $369.00.
These prices where from my local dealer. You can get the partial kit from http://www.gmotors.com/
they sell new parts for 15% over cost. Hope this helps. By the way it would help if you had the part number, they had no idea what I was talking about till I gave them the part number. The part number for the partial kit is: 08821/10433824 (Tool Kit)is the description.