2445Z1136 Bucket Linkage O-Ring For Kobelco Excavator SK200One New Aftermarket Replacement Bucket Linkage O Ring for Kobelco Excavators This aftermarket replacement o ring seals the bucket linkage connection point on Kobelco crawler excavators, helping prevent contamination ingress and maintaining proper lubrication at the bucket pin and linkage assembly. Keeping this seal in good condition reduces wear on linkage pins and bushings and helps extend the service life of the bucket attachment system. Compatible