Thermostat water outlets hose for Volv o Radiator hose pipe 31202742 Water tank downpipe

Product Description:

Auto radiator hose tube
OE NO.:   31202742   31261523

Applicable vehicle type: For Vol vo

The engine coolant recovery tank hose (also known as the expansion tank connecting tube or overflow tube) is an important connecting component of the automotive engine cooling system. Its core function is to connect the engine cooling system with the coolant reservoir/expansion tank, achieving dynamic balance of the coolant in a closed circulation system.

Common Fault Phenomena

• Leakage: Aging and cracking of hoses cause coolant leakage, leading to engine overheating.
• Overheating: Loss of coolant results in reduced cooling efficiency, triggering a water temperature warning on the dashboard.
• Fault Light Illumination: Abnormalities detected by the coolant temperature or level sensor trigger the Check Engine light.
• Hose Collapse: Rusting or absence of internal steel wires causes deformation of the hose under the suction force of the water pump.

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