Peugeot 3008 Thermostat Housing: YL00957280

Genuine Peugeot Thermostat for Optimal Engine Cooling

This Peugeot 3008 thermostat housing (YL00957280) is a genuine, high-quality part manufactured by Peugeot in Taiwan. It guarantees optimal performance and reliability, ensuring your engine runs at its peak efficiency. We offer the best price for this brand-new, 100% authentic component.

Thermostat Function in the Cooling System

The thermostat is a crucial component in your vehicle’s cooling system. Its primary function is to regulate engine temperature, preventing overheating and ensuring optimal operating conditions. The thermostat’s internal spring mechanism controls the flow of coolant between the engine block and the radiator.

This regulation is achieved by the thermostat automatically opening and closing. When closed, coolant circulation is restricted, allowing the engine to reach its optimal operating temperature. Conversely, when open, coolant flows to the radiator, effectively cooling the engine.

Thermostat Components and Their Functions

The thermostat comprises several key components, each performing a specific role:

• Main Valve: This valve controls the coolant flow. As the cooling system temperature rises, the main valve gradually opens, allowing more coolant to flow to the radiator.
• Secondary Valve: Once the main valve opens, coolant circulates through the radiator in a closed loop. If the coolant temperature rises further, the secondary valve may also regulate the flow to the radiator. Inadequate coolant flow to the radiator can quickly lead to engine overheating.
• Wax Cylinder: This cylinder contains a special wax that expands as it melts when the engine heats up. This expansion forces the main valve to open, directing coolant to the radiator. Conversely, when coolant is cool, the wax solidifies, closing the valve.
• Seal: The seal prevents unwanted coolant leakage. Maintaining a clean and well-maintained seal is crucial for its proper function.
• Spring: When the coolant temperature drops below a certain threshold (approximately 87°C), the spring pushes the main valve closed, restricting coolant flow to the radiator.

Importance of the Thermostat in Engine Performance

While small, the thermostat significantly impacts engine temperature stability. A properly functioning thermostat contributes to fuel efficiency and extends engine lifespan. It’s typically located on the coolant pipe between the engine and the radiator, precisely controlling coolant flow to maintain a stable operating temperature.

How the Thermostat Works

The thermostat operates based on coolant temperature changes. When the engine is cold, the thermostat remains closed, preventing coolant circulation. As the engine warms, the thermostat opens to allow coolant to flow to the radiator for cooling. Specifically:

• Cold Engine: The thermostat is closed, restricting coolant flow.
• Optimal Temperature (87-95°C): The spring and wax cylinder mechanisms allow the thermostat to open, enabling coolant flow to the radiator, effectively cooling the engine.

Compatible Vehicles:

• Peugeot 3008
• Peugeot 5008

SONHAI Auto Warranty & Customer Service

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• 100% Genuine parts with clear origin
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• 7-day return policy (original condition, packaging intact, and not installed)

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