This is a A-E51728 Belt, Rotor Drive PN: E51728Main Description As Following : A-E51728 Belt, Rotor Drive PN: E51728 Found in Section & Models : Belts > Hay and Forage Belts, John Deere MOWER, FLAIL: 25 (540 RPM), John Deere MOWER, FLAIL: 25A (540 RPM), John Deere MOWER, FLAIL: 360, John Deere MOWER, FLAIL: 370 Associated Items : New Also This is An Aftermarket Product And : 7/8" x 58" Wrapped Poly Cord Depth: 17/32" Length: 58" Material: Polyester Cord OC Length: 7/8" X 58" Thickness: 0.875" Top Width: 7/8" Width: 7/8"