Genuine OEM SEAT Coolant Hose with Coupling, part number 2Q0121049AJ. This critical component is responsible for transporting coolant throughout the engine cooling system, effectively regulating engine temperature to prevent overheating and ensure optimal performance. It is positioned within the engine cooling system, connecting various components such as the radiator and engine block. Weighing approximately 1.155 kg and measuring 0.51m in length, this hose is designed with integrated couplings for a secure and leak-free connection. Genuine OEM hoses are manufactured to withstand extreme temperatures and pressures, providing precise routing geometry and material composition for reliable, long-term operation.