This is a A-PLW7 Pulley PN: PLW7Main Description As Following : A-PLW7 Pulley P.N: PLW7 This pulley can be used with either A or B width belts due to its dual groove / taper configuration.Hub Required: WOutside Diameter: 7" Crossed From: WSP700W , , 21020070 , , 21020070 , , 2827-44627 JOHN DAY , 673-S85011000 , , 673S85011000 , 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: W Outside Diameter: 7"