Re: all diff. and pinion OEM part numbers
I used these diff output seals in my 04.
http://www.ebay.com/itm/Mercedes-R129-R171-W204-Set-of-2-Differential-Output-Seal-D-P-H-0259972647-/360681787644?pt=Motors_Car_Truck_Parts_Accessories&hash=item53fa4f50fc&vxp=mtr