Hot sale HITACHI EX100 120-5 EX200-2-3 ZX120 BY PASS WATER HOSE PIPE (OEM IS 8972242040) | Tonkee®

Warm-Up Phase: During engine startup, the bypass hose helps the engine warm up more quickly by allowing coolant to circulate within the engine block without passing through the radiator.

This aids in reducing engine wear during the cold start phase.

Temperature Regulation: Once the engine reaches its operating temperature, the bypass hose allows a controlled flow of coolant to pass through the radiator, where it can be cooled before returning to the engine. This continuous circulation helps maintain a stable operating temperature.

Cooling System Integrity: The bypass hose also ensures that the cooling system remains functional even if there is a blockage or restriction in the main coolant pathway. This redundancy is crucial for preventing overheating and potential engine damage.

Pressure Control: The bypass hose contributes to regulating the pressure within the cooling system, preventing excessive pressure build-up that could lead to leaks or damage.

The proper functioning of the bypass water hose pipe is integral to the overall performance and longevity of Hitachi excavators like the EX100, EX120-5, EX200-2-3, and ZX120.

A malfunctioning or damaged bypass hose can lead to several issues:

Engine Overheating: Without proper coolant circulation, the engine can overheat, leading to reduced efficiency, increased fuel consumption, and potentially severe damage to engine components.

Reduced Lifespan: Overheating and improper temperature regulation can significantly shorten the lifespan of the engine and other cooling system components.

Downtime and Maintenance Costs: Hose failures can result in unplanned downtime, increased maintenance costs, and potential delays in construction projects.

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