Excavator Komatsu PC2000-8 Hydraulic Swivel Joint Assembly Part No. 703-15-00131 Product Overview This hydraulic swivel joint assembly enables continuous hydraulic oil supply while allowing the upper structure to rotate freely, protecting hydraulic hoses from twisting damage. Design Features Spindle fixed to undercarriage with separate internal oil passages for left travel, right travel, and other circuits Housing rotates together with upper structure Each oil passage is