PVPK1 New Pin Kit Fits Case-IH Fits International Backhoe Models 580B 580COne New Aftermarket Replacement Swing Tower to Boom Pin Kit Fits Case International Harvester Backhoe Loaders This aftermarket replacement pin kit (PVPK1) services the swing tower to boom connection on Fits Case and Fits International Harvester 580B and 580C backhoe loaders. It is a repair kit used when the swing tower pivot point is worn past the original bushings, restoring proper articulation to the backhoe boom assembly. The kit includes weld on