This is a A-BX48 Cogged Classical V-Belt ( 5/8" X 51") PN: BX48Main Description As Following : A-BX48 Cogged Classical V-Belt ( 5/8" X 51") P.N: BX48 5/8 X 51 B Section Cogged Polyester CordColor: BlackDepth: 13/32"Length: 51Material: Polyester CordOC Length: 5/8" X 51"Thickness: 0.381Top Width: 5/8"Type: B Section CoggedWidth: 5/8 Found in Section & Models : Industrial Belts > BX-Section Cogged Belt, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : 5/8" x 51" B Section Cogged Polyester Cord Color: Black Depth: 13/32" Length: 51" Material: Polyester Cord OC Length: 5/8" X 51" Thickness: 0.381" Top Width: 5/8" Type: B Section Cogged Width: 5/8"