This is a replacement metallic gasket by Skyline Emissions Inc. It is used on DPFs and DOCs on Isuzu 6hk1/4HK1 engines. This gasket is applicable with both Skyline and OEM part numbers. <BR<BR Applicable Skyline Part Number:<BR A-SZXH-SG0801<BR<BR Applicable OEM Part Number:<BR 897608057