GXOAP-9091 is an overrunning alternator pulley for catalog-listed NISSAN applications. Catalog technical data includes OD1 54, OD2 50, W 40.5, R 6, ID 17, M M16, CLOCK CW. OEM/cross-reference numbers are listed for Hitachi, Ina, Nissan, Znp, Zen. Alternator references are listed for Nissan. Review the catalog fitment and reference numbers for compatibility before ordering.