Part Number BM11259HK. FORD 1774454, 1817578, 1842392, 1862337, 1865008, 1905515, 1934531, 1934532, 1934534, BK215H270AD, BK315H270CB, BK315H270CD, BK315H270DA, BK315H270DB. Exhaust gasses containing soot enter the DPF channels which are closed off at alternating ends.