Mercedes W204 W212 W176 W246 Auxiliary Coolant Water Pump A2048350364

Mercedes W204 W212 W176 W246 Auxiliary Coolant Pump is an original cooling system component designed for precise fluid circulation in auxiliary engine circuits. Thanks to its factory Mercedes design and OEM number compliance, the pump ensures stable operating parameters, supporting even heat dissipation and proper engine operation. This solution is particularly beneficial during intensive use when the cooling system needs to maintain high efficiency.

Specifications and technical data

• SKU: A2048350364-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2048350364
• Substitutable numbers: A2048350364, A 204 835 03 64, KD
• Category: Water Pumps

Purpose and Function in the Cooling System

The auxiliary coolant water pump used in Mercedes C-Class, E-Class, and selected compact models is responsible for stable support of the main cooling circuit. It maintains fluid flow in additional circuits, which limits local overheating of engine components and accessories.

In practice, this translates to:

• more even temperature distribution within the engine unit,
• better operating conditions for engine accessories across various load ranges,
• maintenance of proper thermal parameters even during extended city driving.

OEM Construction and Mercedes Fitment

The pump belongs to the Water Pumps category and is designed according to vehicle manufacturer standards, facilitating installation at factory mounting points and connection to the existing system. OEM construction means maintaining the original geometry of the connectors and compatibility with the standard cooling hose system.

Thanks to this:

• you reduce the risk of leaks resulting from ill-fitting aftermarket parts,
• you maintain flow parameters consistent with Mercedes engineers' specifications,
• you minimize the time required for component installation and removal.

Performance Characteristics of a Used Part

The offered pump is a used part, allowing for economical repair of the cooling system while maintaining the original manufacturer's specifications. This type of component is particularly attractive for servicing older vehicles where a reasonable cost of vehicle maintenance while ensuring proper functionality is a priority.

By choosing an original, used auxiliary pump, you gain:

• factory fitment for a specific Mercedes platform,
• maintenance of standard cooling system operating parameters,
• the possibility of quick replacement without the need for system modifications.

Integration with Other System Components and Part Selection

The auxiliary coolant water pump works in conjunction with the main coolant pump, radiator, and coolant hoses, forming a cohesive system responsible for heat dissipation from the engine. When planning maintenance, it is advisable to check the condition of hoses, clamps, and the coolant itself to fully utilize the potential of the replaced component.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as auxiliary pumps, flow control modules, or housings related to fluid circulation, check the available parts in the Mercedes Water Pumps category.

Technical Support and Vehicle System Knowledge

When selecting vehicle system components, including pumps, injectors, or other sub-assemblies, understanding how individual systems work is helpful. In the context of servicing and diagnostics, it is worth familiarizing yourself with materials concerning the operation of fuel systems and their interaction with other components – this is described in more detail in the article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which organizes knowledge about diagnostics, selection by part number, and operation.

If you are considering using aftermarket parts in your car and want to consciously compare the differences between new and used parts in terms of durability and cost-effectiveness, the guide Car Parts – New or Used? Comparing Costs, Quality, and Durability will also be helpful, discussing practical aspects of selecting components for various service applications.