Genuine OEM Volkswagen Coolant Hose, part number 4M0122449AP. This hose transports coolant through the engine and cooling system to regulate engine temperature. It is located at position 19 in the cooling system assembly. Manufactured to strict OEM standards, this hose ensures proper coolant circulation and helps maintain optimal engine performance. Genuine OEM coolant hoses are designed for precise fitment and durability, resisting degradation from heat and chemicals for reliable operation.