Coolant Thermostat: Ensure Optimal Engine Performance and Longevity Upgrade your vehicles cooling system with our Coolant Thermostat, designed for precise temperature control and enhanced engine protection. This essential component ensures your engine operates efficiently and safely under all conditions. Applicable Model: This coolant thermostat is a direct replacement for CITROEN C5 and PEUGEOT 406, 607 models. Verify compatibility with your specific vehicle model to ensure a perfect fit and hassle-free installation. OE Number: The reference part number for this thermostat is 1336Q4. Confirm this number with your existing part to avoid unnecessary returns and ensure compatibility with your vehicle's cooling system. Precise Control: Featuring a high precision and high sensitivity control system, the outlet thermostat quickly and accurately responds to changes in water temperature. This enhances driving safety and comfort by maintaining optimal engine temperatures. Engine Protection: By keeping the water temperature constant within a specified range, this coolant thermostat effectively protects your engine from damage due to overheating or undercooling. It helps prevent failures and prolongs engine life. Durable Material: Made from premium metal materials, the cooling water thermostat is resistant to high temperatures and pressure. Its robust construction ensures long service life, excellent reliability, and prevention of leaks and plugging. Choose our Coolant Thermostat to enhance your vehicle's cooling efficiency and engine protection. Order now to experience improved performance and reliability with this durable, high-quality component.