Part number: MER-6398350064 is a new, unused Genuine Mercedes engine auxiliary water pump. The Auxiliary Water Pump has a primary function of circulating warm coolant to the heater core. If a small amount of coolant is circulated the blower fan will pull heat out of the coolant causing the heater core to get cold.

Genuine Mercedes parts are the finest replacement parts that you can purchase for your Mercedes. These parts contain the same material quality, and workmanship as the part that was originally installed on the factory line.

FCP Euro carries a wide range of precision-manufactured OEM (original equipment manufacturer) and aftermarket replacement parts for your vehicle. It's almost certain we will be able to satisfy your auto parts needs, no matter how complicated. If you need an uncommon part that isn't currently in stock, we will try to find it for you.

FCP Euro provides one of the most accurate online automotive parts and accessory catalogs on the web backed with a lifetime warranty on all products, free shipping, hassle free 365 day returns, and a call center available to help you through any repair or replacement parts purchase.