That looks like one of the mounts you remove when you do the timing belt. You can put a piece of wood under the oil pan 2x6 to jack up the engine slightly. Just spray the nuts with penetrating oil for a few days before you tackle the repair to ensure the nuts come out without any issue. Some of the other bolts that are for the lower motor mounts have a tendency to snap when being removed.
http://www.toyotapartsoverstock.com/showAssembly.aspx?ukey_assembly=486128
Here is the image I was looking at for your part.
Regards, JC.