01-06 Silverado 2500/3500 Duramax fan/tcm cover, these are held on by rivets and are very easy to install and add a way better look to the engine bay of your truck. Made with 12ga steel. 
Radiator cover is sold separately, 3rd and 4th picture show what is included 
THESE COME RAW STEEL BUT CAN BE POWDER COATED FOR EXTRA