It started about a decade ago, but MB USA is selling all bigger parts as remanufactured, when in fact they are new parts.
I observed the same with friends buying alternator for his Dodge.
The coolant aka water pump that I got from the dealership appears to be new even though it is labeled remanufactured and has a core charge. The clincher on it being new for me is that the hole for the idler pulley trilobular thread fastener is not threaded. Had the casting been remanufactured that spot would be threaded.I found this 30 years ago, with Honda parts. The explanation I got was that taxes for importing "Reman" parts were significantly less, maybe zero. And Honda put a large core charge on the part being replaced, as a way of keeping parts from being rebuilt domestically.
I just ordered an engine coolant aka water pump at higher price than some other options from the local Mercedes dealership. When I picked it up it is a remanufactured unit. The parts person said that remanufactured parts are getting more and more common. It appears that the MB parts supply mode is changing. I assume that the 2 year parts warranty still applies even to reman parts. I didn't think to ask at the time.
View attachment 193992
When I ordered it over the phone they asked for the VIN last 8 digits of my 2006 Freightliner Sprinter. At first the numbers didn't get accepted. I offered to give my 2004 Dodge VIN. "Dodge numbers don't work at all." Eventually the 2006 VIN did work. During the conversation I gave him the full 2006 number string. I don't know if that helped or not.
Anyway. If a NAS aka NAFTA Dodge 2004 - 2006 OM647 owner wants to order a pump or other parts from a Mercedes dealership my 2006 Freightliner 2500 HC 140 Passenger VIN should work.
Had to replace my water pump again at 295K. It was a gates that I had put in at about 160K. So I got about 135K on the gates pump. I put in another gates pump and this time I put in a new Victor Reinz gasket, which is the metal/rubber combination.