isjigsaw

Was working on replacing the lifters in my 07 C230 this weekend... Shouldn't have tried myself...

Took off the driver side valve cover and missed one bolt. The bolt in question holds down a small tube on the back of the engine. The upper cam goes into it as you can see in the pictures Unfortunately the little stub where the bolt for the tie down broke off.

I'm now trying to identify the part in question so that I can get a new one. Anyone have an idea what this part is / part number?

Thanks in advance...

Jim