This is a A-PLV2-12 Pulley PN: PLV2-12Main Description As Following : A-PLV2-12 Pulley P.N: PLV2-12 This pulley can be used with either A or B width belts due to its dual groove / taper configuration.Hub Required: VOutside Diameter: 2.5" Crossed From: WSP250V , , 21010025 , , 21010025 , , 2827-43727 JOHN DAY , 673-S85010100 , , 673S85010100 , Found in Section & Models : Chains/ Sprockets/ Pulleys/ Hubs > Pulleys, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : This pulley can be used with either A or B width belts due to its dual groove / taper configuration. Hub Required: V Outside Diameter: 2.5"