Pnuematics in AutoCAD?

Hello fellow RoboNerds, I was wondering if there is the possibility to get the pneumatic kit for my AutoCAD library.

On the product page of each VEX product, there is a link to the STEP CAD file of each part at the bottom. This page has the pneumatics:
http://www.vexrobotics.com/275-0276.html

Also, you would probably rather use Autodesk Inventor (3D), as AutoCAD is mostly intended for 2D.

Thank you for the help, i needed it.