Mercedes W206 Engine Water Coolant Pump M254 A2542002600

Mercedes W206 M254 Engine Coolant Pump is an original cooling system component from the Water Pumps category, designed for gasoline engines. It ensures stable coolant circulation, which translates to safe engine operating temperatures and predictable operating conditions.

Specifications and technical data

• SKU: A2542002600
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2542002600
• Substitutable numbers: A2542002600, A 254 200 26 00, A2542002500, A 254 200 25 00, A2542003000, A 254 200 30 00
• Fuel type: Petrol
• Part type: Engine Water Pump
• Category: Water Pumps

Intended Use and Role in the Cooling System

The presented coolant pump is dedicated to the M254 engine in the Mercedes W206 model powered by gasoline. It is responsible for the forced circulation of coolant through the block and head, as well as through the heat exchanger, which allows for maintaining a stable operating temperature across a wide range of loads.

An efficient pump in the cooling system ensures, among other things:

• maintaining optimal engine operating temperature during city and highway driving,
• reducing the risk of overheating during high engine load,
• stable operating conditions for accessories cooperating with the cooling system.

Technical Characteristics and Compatibility

The pump belongs to the Water Pumps category and is an original Mercedes part, meaning it retains factory flow parameters and mounting fit. The design is prepared for cooperation with the M254 engine cooling system, taking into account the requirements of gasoline units in terms of coolant pressure and flow rate.

For ease of selection, interchangeable numbers are provided, allowing for precise matching of the pump to a specific vehicle configuration within the same parts family. In practice, this means that with correct identification by OEM number or VIN, a part compliant with factory specifications can be selected.

Condition, Origin, and Benefits of Choosing a Used Pump

The offered coolant pump is a used part, sourced from disassembly, which allows for combining original manufacturing with an attractive purchase price. Compared to low-budget aftermarket alternatives, an OEM component ensures proper fit with the housing, connections, and accessories, as well as operating parameters consistent with the manufacturer's design.

Choosing a used Mercedes water pump can bring significant service cost savings while maintaining:

• factory impeller and housing geometry,
• correct fit to the cooling system of a specific engine,
• compatibility with original mountings and coolant hoses.

If you want to better understand when it is worthwhile to opt for used OEM parts and how to do it consciously, the article will be helpful: rising repair costs and the boom in used parts – how to save on car servicing.

Selection by OEM Number and the Importance of Correct Identification

Selecting a coolant pump for modern units like the M254 requires precise identification by OEM number and reference numbers. This helps avoid problems with installation, incorrect fluid flow, or incompatibility with the cooling system's control electronics.

For components related to coolant or fuel circulation, correct selection by catalog numbers is crucial. You can read more about diagnostics, VIN/OEM identification, and the operating principles of pump systems in the guide: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair.

Alternative Mercedes Water Pumps

If you are looking for other solutions within the same parts group, for example, for a different model or engine variant, check out available Mercedes Water Pumps. This will allow you to compare different references within the same category and choose the part best suited to your specific vehicle.