Cooling system water hose OE LR135340 Cooling Hose for Land Rover Cooling water pipe

Product Description:

Cooling water hose

OE NO.: LR135340 LR135347

Applicable vehicle type: For Land Rover

The automotive cooling water hose is a rubber hose used in the engine cooling system to transport coolant. Also known as a radiator hose or cooling water hose, it connects components such as the engine block, radiator, and water pump to form a closed coolant circulation loop. This loop transfers heat generated by the engine to the radiator for cooling.

Cooling water hoses play a critical role in the automotive cooling system, performing the following primary functions:

• Coolant Circulation: The cooling water hose directs heat-absorbed coolant from the engine block via the water pump to the radiator. It then returns the cooled coolant back to the engine, forming a closed-loop circulation. This continuous cycle removes excess heat generated during engine operation, maintaining the engine within its optimal operating temperature range.
• Connecting Key Components: Radiator hoses link multiple critical components within the cooling system, including the engine block's water jacket, radiator, water pump, and thermostat housing. These flexible hoses enable smooth coolant flow between different parts, ensuring the entire cooling system functions as an integrated unit. For example, one hose connects the water pump to the engine block's inlet port, another links the engine block's outlet port to the radiator, and yet another connects the radiator to the engine's intake manifold (for cooling the intake air). Each hose serves its specific function, working in concert with the others.
• Absorbing Vibration and Movement: As engines generate vibrations and thermal expansion/contraction during operation, cooling hoses—acting as flexible components—absorb and cushion these movements. This prevents pipe rupture or loosening that could occur with rigid connections. The elastic properties of hoses ensure cooling fluid lines remain intact during engine shuddering or thermal expansion, safeguarding the system's sealing integrity and overall functionality.
• Auxiliary Cooling and Heating: In certain vehicles, specific coolant hoses also serve auxiliary cooling or heating functions. For example, some engines connect their intake manifolds to the radiator via a coolant hose, introducing cooled liquid to chill incoming air. This enhances air intake efficiency and combustion effectiveness. Additionally, during winter, coolant hoses assist in engine preheating. For instance, certain vehicle models utilize coolant flowing through a heater core to warm the passenger compartment, which is also part of the coolant hose's operational function.

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