Cam Sensor cap.

Heck I'll sell you a whole GOOD cam sensor with the cap but I don't have the two little screws that hold the cap down for $45 and $12 mailing. Mike
An alternate source is Tomco part number 22008 which is just the cap. MUCH cheaper than a new delco or standard complete assembly. Mine hasnt failed yet, 12 hours of open highway driving on it so far.