Genuine OEM Volkswagen Coolant Pipe, part number 06E121045BB. This pipe is a crucial part of the engine's cooling system, directing the flow of coolant between the engine block, radiator, and other cooling components. It is typically made of durable material designed to withstand high temperatures and pressures. The pipe's precise geometry ensures proper coolant circulation, preventing engine overheating. Genuine OEM coolant pipes are manufactured to resist corrosion and material degradation, ensuring a long service life and reliable engine temperature management.