ProLean,so the process has gone like this NHTSA Order NEF-150SM Campaign number 17V-562 notifed FCA to recall.FCA responded with a letter of intent to repair rather than contest.So FCA has stated to the NHTSA that it will notify service managers by Sept the 29th.And with a repair date to start around Nov. 9, 2017.Also since most dealership are carrying the current designed water pump it may or may not be the replacement pump Cummins will used.
England vendor Concentric INC produces the said pump for Cummins.Cummins may have decided to redesign based on previous pump failures submitted for warranty since 2013-2017.There could be a replacement design being approved by NTSHA because now that the goverment has gotten involved it will have to be approved by them as well.So all in stock may have to go bye-bye.
After talking with Cummins tech's they seem to be not to worried in that a pending failure will be a slight coolant leak noticed on the ground below the truck if it is a weep based design water pump,Concentric also made a no-weep hole design pumps as well. You have to locate this weep hole rather small located next to the base of the water pump located at the 6 oclock position so that when it starts to fail the design was to allow the water coolant to drip right off the front accessory drive plate (black in color) and run straight down to the ground.
Good luck with this method because it being so hot I doubt you will have seen it.The other failure sign would be you start your truck look parallel to the fan spining and watch the pulley of the pump it it looks just the slightest out of track.Take to dealership ASAP,because alot of damage could occur if this shaft and pulley fail,this seems to be the main reason for NTSHA to getting involved.
I have no data to support a water pump impeller shaft axle starts to deflect and destory. I suspect something that causing the bearings to no longer support the axle of the impeller at the spin speeds that the pump is being call to d

r the belt tension may be to high and this is causing the impeller axle and bearings to over heat and fail.A rather simple design,but yet there are so many dynamic loads being put on the bearings.
A self sealed bearing race pushing all of its grease into the coolant track of the pump and then showing up in the coolant reservoir coating the sides of the reservoir.This has been one theory out there among Cummins techs is that they notice a foreign substance in the reservoir and have been tracking these findings on a engineering network with- in Ram tech support.
One thing that was stated by FCA that if anyone has replaced their water pump's in the effected MY years,to keep all documents where it was a dealership or a on the spot repair by a automotive repair shop.That FCA will review and reimburse such owners.So trucks with a built date of 10/24/2012 (start of production for 2013) to 02/28/2017,will be repaired or reimburse.This document is what a district rep showed me at the Texas state Fair,because alot of Ram owners were asking show personnel about it in which they no nothing about and some of the Ram personnel from Aulburn Hills was present.
The said document was a Part 573 Safety Recall Report a 17V-562.One thing that was interesting was that out of 443,712 that could be effected only less than 1 percent were to be likely effected or defectective.You can also call RAM Customer service at 800-853-1403 for any more update to this information,because as we all know this is all subject to change based on what Cummins is going to do.And what FCA will agree to do as well through it dealer network.This recall is going on at the same time a S85 is being completed as well.
So with a limited amount of quailfied Cummins Tech at each dealership it will be by appointment most likely with well once the Service campaign number is issued only then will we see if a car rental is entitled and shop labor rate is claimed,and if most dealerships have enough water coolant avail to because this will require draining coolant as well,truck to cool off etc...Possible belt replacement at the time of inspection.