I have 2016 2500 and just did this service mid-August with 66.8K miles, and I disagree about doing only the CCV filter on post 2013 trucks. Cummins engineers statements don’t control Ram warranty determinations (I would and personally follow/comply with Ram service recommendations).
2009 Diesel supplement:
Perform Service
This vehicle will require emissions maintenance at a set
interval. To help remind you when this maintenance is
due, the Electronic Vehicle Information Center (EVIC)
will display “Perform Service.” When the “Perform Ser-
vice” message is displayed on the EVIC, it is necessary to
have the emissions maintenance performed. Emissions
maintenance includes replacing the Closed Crankcase
Ventilation (CCV) filter element,
cleaning of the
Cooler, and cleaning of the EGR Valve. The procedure for
clearing and resetting the “Perform Service” indicator
message is located in the appropriate service informa-
tion.
2018 Diesel supplement:
Perform Service — Your vehicle will require emissions
maintenance at a set interval. To help remind you when
this maintenance is due, the instrument cluster display
will display “Perform Service”. When the “Perform
Service” message is displayed in the instrument cluster
display it is necessary to have the emissions mainte-
nance performed. Emissions maintenance may include
replacing the Closed Crankcase Ventilation (CCV) filter
element. The procedure for clearing and resetting the
⬙Perform Service⬙ indicator message is located in the
appropriate Service Information.
No mention of EGR cooler or EGR valve in 2018 manual. In addition the 67.5K mile service in the 09 manual explicitly states EGR service is required but it isn't in the 2018 manual.
Where is your reference it is required for the later models?