3.6 Pentastar oil pressure sender woes.....

pishta said
That all aluminum replacement cooler assembly is ~$350.

not that much if you look around a bit.

Dorman 926-876
$166 at Summit
$200 at Oreily's
$238 at Advanced

But the water/oil Cooler block assembly changed in 2014 so it technically doesn't fit your 2012 without updating to the newer cooler.