GXOAP-9113 is an overrunning alternator pulley. Catalog technical data includes OD1 56, OD2 51.8, W 39.4, R 6, ID 17, M M16, CLOCK CW. OEM/cross-reference numbers are listed for Ford, Volvo, Litens. Alternator references are listed for Ford, Volvo, Valeo. Review the catalog fitment and reference numbers for compatibility before ordering.