This is a A-MB27 Bushing, Machine 3" X 4 ?" 14 Ga. (Narrow Rim) PN: MB27Main Description As Following : A-MB27 Bushing, Machine 3" X 4 ???" 14 Ga. (Narrow Rim) P.N: MB27 Gauge: 14Inside Diameter: 3"Outside Diameter: 4 1/4" Found in Section & Models : Shop Supply > Machinery Bushings, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : Gauge: 14 Inside Diameter: 3" Outside Diameter: 4 1/4"