GXOAP-9200 is an overrunning alternator pulley for catalog-listed MercedesBenz applications. Catalog technical data includes OD1 55, OD2 49.5, W 43.5, R 8, ID 17, M M16, CLOCK CW. OEM/cross-reference numbers are listed for Bosch, Cargo, Wai, Db, Ina, Zen, Znp. Alternator references are listed for Bosch, Db. Review the catalog fitment and reference numbers for compatibility before ordering.