Lower radiator tube hose for Volv o Downpipe Engine upper radiator coolant hose 30680915 Radiator hose

Product Description:

Auto lower radiator water hose
OE NO.:  30680915   30680911

Applicable vehicle type: For Vol vo

Radiator Outlet Hose (also known as Downpipe or Lower Radiator Hose) is a critical circulation component of the engine cooling system, responsible for conveying the low-temperature coolant (typically 60-80°C) cooled at the bottom of the radiator back to the inlet of the engine water pump. It forms a complete coolant circulation loop together with the upper hose.

Key Points of Daily Maintenance

• Liquid Level Monitoring: Check the expansion tank liquid level weekly, and perform immediate maintenance if there is an abnormal drop.
• Clamp Retightening: Inspect the clamp torque during seasonal maintenance to prevent loosening caused by thermal expansion and contraction.
• Coolant Quality: Use long-life coolant that meets the specifications of the original equipment manufacturer to avoid corrosion of the inner rubber layer by inferior liquids.
• Winter Protection: Ensure that the coolant freezing point is at least 10°C lower than the local minimum temperature.

• 20 years of specialized auto parts industry experience
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