Komatsu part 707-46-18050 is an OEM bushing used in the boom hydraulic cylinder assemblies of Komatsu PC2000 series excavators. Listed in Komatsu parts catalogs and regional Komatsu parts shops as a genuine Komatsu replacement, the item is marketed for PC2000 boom-cylinder applications (including PC2000-8 and PC2000-11) and appears in spherical-bearing / bushing product listings used for heavy-duty cylinder joints.