( Used ) VOLVO, DIESEL PARTICULATE FILTER- ( Inlet Forward Direction, Outlet Forward Direction) DPF FILTER- Part Number: 21311951 DPF: 39892, 13W11 Serial Number: 12400002942890 For condition chk pictures For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921