GXOAP-9244 is an overrunning alternator pulley for catalog-listed BMW applications. Catalog technical data includes OD1 54, OD2 49, W 33.8, R 7, ID 17, M M16, CLOCK CW. OEM/cross-reference numbers are listed for Bosch, Cargo, Ina, Bmw, Wai, Znp. Alternator references are listed for Bmw. Review the catalog fitment and reference numbers for compatibility before ordering.