3110625 Excavator Spare Parts Air Hose for EX1200-6

The Hitachi original excavator air hose (part number: 3110625) is a critical pipeline for the engine intake system, mainly used to connect the air filter with the turbocharger or engine intake manifold, ensuring stable delivery of clean air. According to the original parts supplier information, this part number is clearly applicable to the Hitachi EX1200-5 and EX1200-6 large excavator models. In some accessory markets, it is also labeled as applicable to EX1200-6. As an original component, its interface size, bending angle, and length are precisely matched with the intake system of the main engine.
 

This air hose is designed specifically for high flow, high pulse, and harsh engine compartment environments in construction machinery. Its typical structure is multi-layer composite: the inner layer is made of oil resistant and high-temperature resistant synthetic rubber (such as FKM fluororubber or HNBR hydrogenated nitrile rubber), ensuring compatibility with high-temperature air and small amounts of oil and gas; The reinforcement layer is woven with high-strength polyester fibers or aramid fibers, providing excellent tensile strength and resistance to pulse fatigue, preventing deformation or rupture under engine vibration and boost pressure fluctuations; The outer layer is made of special rubber or thermoplastic elastomer (TPE) that is resistant to ozone and ultraviolet radiation, and can resist external thermal radiation, dust, and physical scratches.

The maintenance core of this air hose lies in regular inspection of sealing, prevention of damage, and timely replacement. Regular inspection: It is recommended to visually inspect the hose for cracks, bulges, cuts, hardening, abnormal deformation, or loose or leaking joints every 250 working hours or during weekly maintenance. Use a flashlight to carefully inspect wrinkles and bends. Cleaning: Regularly use dry compressed air or a soft cloth to remove oil and dust from the surface of the hose, avoiding the use of highly corrosive cleaning agents to prevent accelerated rubber aging.