Um, doubt its the passenger side, since that is the engine side. The one below the battery supports the transmission and is up high compared to the other trans mount that is low and in back. Its a good 1 hr+ job for an owner doing it the first time. Requires removing the battery and plastic stuff, the ECU which piggybacks next to the battery, and some other stuff. Reassembling could have you scratching your head saying "why so I have this extra part - I know it came off the car!" The part is about $50 aftermarket, so TBT, I think $180 isn't half bad. They could have quoted $300 for the lower mount that seriously takes 15 min to change!
before you say yes, be sure it IS the one below the battery. The other 2 are a piece of cake to DIY. Like easier than changing spark plugs or flushing engine coolant.