The DNJ Engine Components OP1163 Oil Pump is a new old stock (NOS) replacement part for Chrysler, Dodge, Jeep, and Ram Hemi 5.7L V8 engines. It includes a gasket and is made of aluminum with an unfinished finish. The manufacturer part number is 53021622 and the OE/OEM part number is 53021622BH. It is an interchange part number M452 and is not a performance part. It is made in China and is suitable for vintage cars.