Genuine OEM Volkswagen Coolant Hose, part number 06K121051P. This hose is a critical component within the engine cooling system, facilitating the flow of coolant. It is positioned within the cooling circuit, as indicated in the diagram. Key specifications include a length of 0.1m, width of 0.045m, and height of 0.035m. Genuine OEM coolant hoses are manufactured to precise tolerances, ensuring they withstand engine temperatures and pressures without premature failure, unlike aftermarket alternatives.