This FEBI BILSTEIN auxiliary water pump (part code 36770) is designed to maintain optimal coolant circulation within your vehicle's engine. It plays a crucial role in the cooling system, ensuring that the engine operates within its ideal temperature range, preventing overheating and potential damage. Proper functioning of the auxiliary water pump is essential for both performance and longevity of your engine. It works in conjunction with the main water pump to manage the flow of coolant, especially during periods when the main pump's output might be insufficient, such as at idle or during low-speed driving. FEBI BILSTEIN is known for producing high-quality automotive components. This auxiliary water pump is manufactured to meet stringent standards, ensuring reliable performance and durability. Installation of this part will help restore or maintain the efficiency of your vehicle's cooling system.