I need a new lower engine mount in for my 2007 MCS, however I can't seem to find the exact replacement part.
The mount on my car is diamond shaped, like #5 here:



Or like the one on the left on this picture:



However, the only replacement parts that I can find are shaped like the one on the right side.
They seem to have the same part number (22116783094), but are they interchangeable?

 

Yes they no longer offer the triangular shaped one as that was only available on the 07 cars and they found the round ones to be better. So you just need to replace it with the round one. We keep them in stock
https://www.waymotorworks.com/oem-mi...7-r58-r59.html

We also recommend adding the powerflex torque arm bushing as it will reduce engine rock and help get the power to the ground better.
https://www.waymotorworks.com/powerf...unt-large.html

 

Strongly suggest you replace the engine and transmission mounts as well. They are no more reliable than the torque arm. Failed engine mounts can be rather difficult to diagnose.