I still have my original in my '04 Hemi AND my '02 Grand Cherokee (4.7 HO), haven't noticed the water pumps being a very common issue with Dodge. Now I had a Nissan about a dozen years ago (company car) that I put over 180,000 miles on, actually sold it with 320k on the clock when I sold the business and the thing ate water pumps every 30k miles like clockwork.
Now I do know that the o-ring seal around the thermostat on the 4.7s is a known issue and will leak when that fails. Tell-tale sign of the O-ring is it'll leak on cooler nights when the engine is off and the ring will usually swell and seal up when the engine comes up to temp...
2014 Ram 2500 Big Horn Cummins 6.7 4x4