Mercedes Auxiliary Water Pump - Sun Nation C6003

Product Information

An engine auxiliary water pump is a component in a vehicle's cooling system that helps circulate coolant to the engine, heater core, and supporting systems leveraging coolant like the turbocharger. It is particularly useful in systems where additional coolant flow is needed to maintain optimal operating temperatures, especially during low-speed driving or when the engine is idling.

• Overheating Engine: If the auxiliary water pump fails, it can lead to inadequate coolant circulation, causing the engine to overheat, especially in stop-and-go traffic or under heavy loads
• Coolant Leaks: A malfunctioning pump may develop leaks due to damaged seals or housing, resulting in visible coolant pooling under the vehicle
• Inconsistent Cabin Heating: If the pump is not circulating coolant properly, the heater may produce inconsistent or insufficient heat, leading to cold air blowing from the vents

About Sun Nation

Established in 1994, founder and current owner, Cary Chen began designing automotive solution parts with offshore partners for domestic distribution. Since those early beginnings, they have branched into multiple brands, various online stores, as well as brick and mortar store locations. Many of the Sun Nation products are solution-based improving upon an original design.