Hitachi 9062438 Rotary Center Joint Assembly

The rotary center joint, also known as a swivel joint, is a critical hydraulic component mounted in the center of the undercarriage. It enables continuous hydraulic fluid flow between the stationary upper structure and the rotating lower track frame to power the travel motors. This assembly is engineered to OEM specifications for high-pressure hydraulic systems. It features precision-machined ports and high-load bearing races to withstand the axial and radial loads generated during excavation cycles. The unit utilizes advanced sealing technology to prevent cross-contamination between hydraulic circuits and external leakage. Direct replacement for Hitachi OEM part numbers 9062438 and 9097153, compatible with model HCJ-080C center joint housing.