Product Overview The LVP370 main hydraulic piston pump assembly is engineered for Hitachi EX1800 and EX3500 excavators, delivering reliable hydraulic performance for demanding mining and heavy construction applications. This swashplate variable displacement pump provides constant power control under varying loads, ensuring efficient operation and extended service life. 4312387 4303630 4274549 4209358 4264706 Main Structure The pump features a swashplate variable piston design