This is a replacement fiber gasket by Skyline Emissions Inc. It is used on DPFs and DOCs on Navistar Maxxforce 7/DT/9/10 engines. This gasket is applicable with both Skyline and OEM part numbers. <BR<BR Applicable Skyline Part Numbers:<BR A-NVXH-MJ1206, A-NVXH-MJ1226, A-NVXH-MK1208, A-NVXH-MK1228, A-NVXH-MN1009, A-NVXH-MN1029<BR<BR Applicable OEM Part Numbers:<BR 2593981C91, 5010836R91, 2594356C91, 5010834R91, 2604870C91, 2605796C91, 2611630C91, 5010852R1