- OEM Compatibility: This coolant expansion tank with cap is meticulously crafted to meet factory specifications, ensuring an exact fit for your vehicle. Compatible with models including C3 Aircross, DS3, 308 Mk2, and more, it eliminates compatibility concerns for a safe and reliable replacement. - Easy Installation: Designed for straightforward installation, this expansion tank requires no tools or specialized skills. Simply swap out your old tank for a hassle-free experience, making it perfect for both DIY enthusiasts and professional mechanics. Save time and reduce labor costs with this user-friendly solution. - Durable Construction: Made from high-quality plastic in sleek white and black, this expansion tank is engineered for longevity. Its robust design ensures consistent coolant management and optimal engine performance, helping to prevent overheating and prolonging the lifespan of your vehicle's cooling system. - Comprehensive Fit: This brand-new product includes essential OEM part numbers such as 1323T9, 003637681, 9800777280, and SU001-A3738. Verify compatibility with your vehicle by referencing the listed models and part numbers to guarantee a perfect fit and maximum efficiency in your car's cooling system. - Use Scenarios: Ideal for replacing a damaged or leaking expansion tank, this product is perfect for routine maintenance or during engine repairs. Whether you are restoring an older model or keeping a newer vehicle in top shape, this expansion tank ensures reliability and performance.