YOU ARE BUYING A BRAND NEW NOS FACTORY OEM WATER PUMP. THIS IS GM PART NUMBER 94360200 AND AC DELCO PART NUMBER 251-587. THIS IS STILL IN THE FACTORY BOX. SHOULD FIT ANY 1990-1991 GEO STORM AND SOME OTHER MODELS AND SOME ISUZUS. THIS IS THE WATER PUMP ONLY, NO GASKETS. THANKS FOR LOOKING.