Engine Bearing, Gear, Piston manufacturer / supplier in China, offering Komatsu 6D105 Main Bearing 6136-21-8000 - Heavy-Duty for Mining Equipment, for Komatsu 4D95 Connecting Rod Bearing OEM Heavy-Duty Excavator Bearings, Komatsu 4D95 Crankshaft Main Bearing - Fit for Mining & Construction Engines and so on.