Question for ya guys, name that part!

shika805

Hey guys, recently installed some coilovers on my car and noticed something missing on my car. My car's suspension was switched out by the previous owner and it seems like they forgot to put back a piece. I don't what's it's called but seems like it is the top mount spacer for the front suspension? Here are some photos I took.

This is the driver side, triangular spacer inside the engine bay for the top mount.


Passenger side, missing triangular piece? I know that it was there before because of the left over silhouette of the part?


I know that it important if Nissan put it there, what the correct name of this part? I've searched but no luck? Currently I have heavy duty washers to replace it for now. Any help on this appreciated. Thanks!

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