1, Komatsu Du Bushing 2, Boom/Arm/Bucket Du Bushing 3, High Quality and Good Price 4, ... Profressional excavator parts supplier Komatsu Excavator Boom/Arm/Bucket Du Bushing * SF-1/DU Oilless Wrapped Composite Bushing ... Adhesive must not contact the sliding surface. Komatsu Excavator Boom/Arm/Bucket Du Bushing