G33239 Backhoe Boom Dipper Swing Cylinder Seal Kit Fits Case 530 580 680 680BOne New Replacement Fits Case Backhoe Loader Dozer Boom, Dipper, Swing, Bucket, Stabilizer, Pipper, Ripper, Lift Tilt, 2pc Cylinder Seal Kit that fit the following Machines: Backhoe: Boom: 310E, (310F with Backhoe Models 31), 310G with Backhoe Models, 26, 26B, 26S, 32, 33, 420C, (450 with Backhoe Models 26, 26B, 26C, 26S, 32, 33, 35), 530 with Backhoe Models 31, 32, 32S, 580 with Backhoe Models 33, 33S, 750 with Backhoe Models 32, 33S, 34, 1150 with