GXOAP-9159 is an overrunning alternator pulley for catalog-listed MercedesBenz applications. Catalog technical data includes OD1 52, OD2 52, W 39.3, R 5, ID 17, M M16, CLOCK CW. OEM/cross-reference numbers are listed for Valeo, Cargo, Db, Zen, Wai. Alternator references are listed for Db, Valeo. Review the catalog fitment and reference numbers for compatibility before ordering.