This is a A-640891 Belt, Alternator PN: 640891Main Description As Following : A-640891 Belt, Alternator P.N: 640891 Dim A (1): 3/8" x 42.5" Stocked As: A-3VX425 Found in Section & Models : Belts > Hay and Forage Belts, Ford / New Holland BALER, SQUARE: BB900, Ford / New Holland SWATHER/WINDROWER: 912 (w/ 250 CID Eng) Associated Items : New Also This is An Aftermarket Product And : Dim A (1): 3/8" x 42.5"