Radiator hose pipe with part number 31410826 for Volv o Heater water hose lower Engine cooler pipe

Product Description:

Auto radiator hose tube
OE NO.:  31410826  31368257

Applicable vehicle type: For Vol vo

The working principle of the coolant hose is based on the circulation of the engine cooling system: when the engine is operating, the water pump draws coolant from the radiator and pressurizes it, then delivers it through the coolant hose to the water jackets in the engine block and cylinder head, where it absorbs heat generated by combustion. The heated coolant flows back to the radiator via the hose, where heat is dissipated into the air through the radiator fins. The cooled coolant is then pumped back to the engine by the water pump, and this cycle repeats continuously to maintain stable engine temperature. The coolant hose connects the engine and the radiator, ensuring that a continuous closed loop is formed between the engine and the radiator, thereby facilitating the transfer and dissipation of heat.

Depending on their structure and function, coolant hoses can be divided into the following categories:

• Radiator Hose: This is the most common type of coolant hose, primarily connecting the engine to the radiator, consisting of two parts: the upper hose and the lower hose.
• Heater Hose: The heater hose is used to connect the engine cooling system with the vehicle's heating system. It introduces a portion of hot coolant into the heater core inside the vehicle, providing heat to the passenger compartment.
• By-Pass Hose: A By-Pass Hose refers to a small-diameter hose that connects different components in the cooling system, used to bypass part of the cooling circuit under specific operating conditions.
• Air conditioning system water pipes: Although they do not belong to traditional engine cooling water pipes, in some vehicles, the cooling water pipes of the air conditioning system (such as the air conditioning compressor cooling water pipe) also use similar hose materials.

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