The YNF12286 Radiator Upper Hose is designed for Hitachi EX75US-5 4JG1 excavators and serves as the primary coolant inlet hose from the engine to the radiator. It ensures consistent coolant circulation, efficient heat dissipation, and stable engine temperature during continuous operation.
Manufactured from premium reinforced rubber, this hose offers excellent resistance to high temperature, internal pressure, coolant chemicals, oil exposure, and engine vibration. Produced according to OEM specifications, YNF12286 provides precise fitment, reliable sealing, and long service life. It is ideal for cooling system repair, preventive maintenance, and engine overhaul.