Coolant hose Y-tube LR018275 Water pump outlet to block for Land Rover Thermostat coolant outlet tube

Product Description:

Thermostat tube hose

OE number: LR018275 LR090630
Applicable vehicle type: For Land Rover

Thermostat tube hose is a coolant pipe connecting the engine thermostat housing to the cylinder block, radiator, or water pump. It is responsible for conveying high-temperature antifreeze and must adapt to the confined space in the engine compartment and continuous vibrations, serving as a critical sealing component in the cooling system.

Throttle Body Heater Outlet Hose Core Functions and Roles:

1. Temperature Regulation: Ensuring Air-Fuel Mixture Quality

Serving as the ‘return channel’ for the throttle body heating system, this hose achieves dual temperature management through coolant circulation:

• Anti-Icing Protection: In cold conditions, engine coolant flowing through the throttle body heats the valve assembly, preventing frost formation on the butterfly valve caused by cold air intake. This avoids throttle sticking that could lead to unstable idling or power interruption.
• Air-Fuel Optimisation: After engine warm-up, maintaining throttle body temperature (typically 40-60°C) pre-warms incoming cold air. This ensures fuel and air mix at the optimum ratio, reducing idle shuddering and exhaust emissions.

2. System Circulation: Maintaining Cooling Equilibrium

Forming a closed-loop circuit with the intake hose, the outlet hose returns heat-exchanged coolant to the thermostat housing. This reintegrates it into the engine's primary cooling circuit, preventing localised overheating or coolant stagnation.

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