Kobelco YN55V00037F1 Hydraulic Swivel Joint Assembly

The YN55V00037F1 is a center swivel joint assembly designed for hydraulic excavators. It facilitates the transfer of hydraulic fluid between the stationary undercarriage and the rotating superstructure across multiple circuits. The unit is constructed from high-strength alloy steel with precision-machined sealing surfaces to withstand high-pressure hydraulic loads and continuous rotation. It serves as a direct replacement for OEM part numbers YN55V00037F1, YN55V00037F2, YN55V00053F1, and superseded number YN55V01115P1. Applications cover mid-size crawler excavators from Kobelco, New Holland, and Case Construction equipment lines.