I've developed a transmission fluid leak which my local garage tells me requires a new transmission oil cooler to fix. I've got a 2010 4.6L. I'm trying to save a few $$ by locating a used part to save the $600+ cost for them to install a new one. Used is okay for me since my car is 12 years old. After considerable searching, I can't even find the p/n on-line for this part and ensure it's for an '10 with 4.6L. Can someone help please?