What is it ????????????
 

2006 Nissan Frontier 4.0 this is a picture of the driver side front valve cover with a shinny place in front of cover where something goes. Can anyone please tell me what hooks up here.Part is missing and i have no clue what it looks like or what it is. Did get truck to start without it.
https://cimg5.ibsrv.net/gimg/nissanf...d9ac326f58.jpg

I found out that the missing part is a Variable Valve Timing Solenoid and i can get both sides for about 50 bucks