Excavator Hydraulic Seal Kit for Hitachi 9186437 Excavator. Premium quality hydraulic seal repair kit for construction machinery, delivers excellent sealing performance, superior wear resistance, high pressure tolerance and long service life for Hitachi excavator hydraulic systems. Direct OEM replacement, 100% compatible with ZX200、ZX200LC、ZX210F、ZX210MF、ZX200、ZX200LC models.