... Komatsu WA420 Our products include: Komatsu and Caterpillar Steering pumps, hydraulic pumps, gear pumps, work pumps, valves, crankshafts, frictions, PCBN, pistons, Shan ... service kits, superchargers and fuel injectors. Our products are used in bulldozers, loaders, excavators, Komatsu Machine Number : ... PumpD475A-1 17705-52-42170 Double PumpD475A-2 Gear pump is also called positive displacement device, ...