This is a A-7855331 Belt, Header Drive (Early Model) PN: 7855331Main Description As Following : A-7855331 Belt, Header Drive (Early Model) P.N: 7855331 Dim A (1): 7/8" x 111"Replaces: 7855331 Stocked As: A-C107 Found in Section & Models : Belts > Hay and Forage Belts, Case-IH SWATHER/WINDROWER: 8825, Hesston (UNDEFINED): SEVERAL, Hesston HEAD, CUTTING PLATFORM: 8100, Hesston SWATHER/WINDROWER: 6450, Hesston SWATHER/WINDROWER: 6455 (1979-1981, 645T-650>), Hesston SWATHER/WINDROWER: 8100, Hesston SWATHER/WINDROWER: 8110 (Rev. D), Hesston SWATHER/WINDROWER: 8110S (Rev. G) Associated Items : New Also A-CY-S-170225, A-HES-O-6450WIN, A-HES-S-HYDWIND, A-HES-O-6455WNR And : Dim A (1): 7/8" x 111" Replaces: 7855331