GXOAP-9155 is an overrunning alternator pulley. Catalog technical data includes OD1 60, OD2 54.3, W 36, R 6, ID 17, M M16, CLOCK CW. OEM/cross-reference numbers are listed for Bosch, Cargo, Ruville, Skf. Alternator references are listed for Bosch, Denso, Fiat. Review the catalog fitment and reference numbers for compatibility before ordering.