Throttle body heater coolant outlet hose part number LR045239 Throttle body heater return hose for Land Rover 

Product Description:

Thermostat tube hose

OE number:  LR045238 LR045239
Applicable vehicle type: For Land Rover

Throttle body heater return hose primary function is to utilize the heat of the coolant during engine cold start to prevent icing at the throttle body location, and to assist the engine in warming up quickly, thereby improving idle stability and emission performance during cold start. After the engine reaches normal operating temperature, the system continues to operate to maintain temperature stability.

This water pipe is one of the vulnerable components, as it has been long-term exposed to a high-temperature coolant environment and vibrations within the engine compartment.

Common issues include:

• Aging and cracking of the pipe body or coolant leakage at the connection interfaces;
• Material hardening and loss of elasticity, leading to loosening of the connection with the interface;
• Scaling or corrosion caused by the use of inferior coolant inside, resulting in poor flow.

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