Hi

Im trying to figure out what the slightly smaller cap slightly left of the center of the valve cover, on an n12 engine. (On the side of the engine closest to Windshield, parallel to the larger spring loaded pcv valve and crankcase vent hose)

I need to find a replacement cap/whatever is under the cap

I'm only missing that little bit of my valve cover, and if someone can help me find where I can order just that part, rather than a whole new valve cover,

That would be much appreciated