The 9670816380 coolant return pipe features an advanced air removal design using ABS, effectively for optimal engine temperature during long drives and frequent use pipe structure improves coolant circulation efficiency, engine overheating caused by airlocks—ideal for vehicles operating in high temperature environments Designed for straightforward DIYer installation without special tools, making it ideal for not professional users seeking a quick and secure replacement solution Made from ABS with excellent heat resistance and impacts strength, this pipe outperforms traditional rubber hoses with durability properties for long term reliability Specifically engineered for 308, 408, 4008, 5008, and C4 models, ensuring seamless compatibility with OEM parts for easy installation without modifications, Manufacturer: EXQIOUR