D150121 bushing dipper at boom pivot Fits Case 580SL, 580SL Series 2, 580SMOne New Aftermarket Replacement Dipper at Boom Pivot Bushing Fits Case (Fits Case IH) Backhoe Loaders This bushing seats at the dipper to boom pivot point on Fits Case 580 and 570 series backhoe loaders, controlling the connection between the dipper stick and the boom arm. It is a high wear structural bushing that must be replaced during dipper arm rebuilds to maintain proper alignment and minimize slop at the pivot. Compatible with both standard