LR135257 Displacement Water Pipe Water Hose for Land Rover Cooling System Radiator Water Pipe Coolant Radiator Hose Tube Pipe

Product Description:

Radiator tube hose

OE NO.:  LR135283 LR135257

Applicable vehicle type: For Land Rover

Automotive Radiator Tube Water Hose (also commonly referred to as coolant hose) is a flexible pipe used in the automotive cooling system for transporting coolant. It is primarily made of rubber or composite materials and connects core cooling components such as the radiator, engine block, water pump, and thermostat, serving as a critical component of the coolant circulation path.

I. Core Functions

• Coolant Transport: Acting as the "transport channel" for coolant, it delivers the low-temperature coolant cooled by the radiator to the engine block, while simultaneously returning the high-temperature coolant generated by engine operation back to the radiator for cooling, forming a complete cooling cycle to maintain the engine at an optimal operating temperature of 80°C-90°C.
• Adaptation to Component Displacement: During engine operation, vibrations are generated, and different components exhibit displacement differences due to thermal expansion and contraction. The flexible material of the radiator hose can buffer vibrations and compensate for displacement, preventing the piping from breaking or loosening due to rigid connections.
• Sealing and Leak Prevention: The fittings at both ends of the hose (typically with clamps) achieve a tight seal, preventing coolant leakage. This ensures stable pressure within the cooling system and avoids engine overheating caused by insufficient coolant.

II. Common Types

Based on installation location and function, it is mainly divided into two categories:

• Upper Hose: Connects the radiator's upper water chamber to the engine's outlet, transporting high-temperature coolant into the radiator. It operates in a relatively high-temperature environment.
• Lower Hose: Connects the radiator's lower water chamber to the water pump's inlet, transporting the cooled coolant back to the engine, serving as the "return channel" for the coolant circulation.
• In addition, there are small circulation hoses connecting the heater and expansion tank, responsible for transporting coolant for the engine's small circulation and the vehicle's heating system.

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