10-12 DODGE RAM 2500 3500 Cummins 6.7L EGR COOLER OEM.  Used.  Cummins part number 4988884.  Cooler has been thoroughly cleaned of soot.  Can see daylight from end to end.  Good air flow.  I have any Dodge Cummins EGR part you need.  Just message me.  If you require expedited shipping and/or handling time, please message me prior to purchase, and I will address the request as possible.  The listing allows for 3 days of handling time, but in many cases, upon message request, I can ship same day or within one business day.