159459A1 Pin Bucket to dipper arm Fits Case 9040, 9040B, 9045, 9045BOne New Aftermarket Replacement Bucket to Dipper Arm Pin for Case Excavators This bucket to dipper arm pin secures the bucket assembly to the dipper arm (stick) on Case 9040 series excavators. It is a critical structural connection point in the excavator's front linkage, subject to heavy cyclic loads during digging and lifting operations. Replacing a worn or damaged pin restores proper bucket articulation and prevents accelerated wear to surrounding