Mercedes W213 Coolant Water Pump Water Cooling Unit A2742000256

The Mercedes W213 Water Pump Hose is an original cooling system component from the Water Pumps group, designed for Mercedes E-Class W213 models. The precisely fitted geometry of the hose ensures stable coolant flow between the water pump and other engine components, contributing to predictable engine operation. A used OEM part is a sensible choice for professional repairs when you prioritize factory fit and maintaining cooling system performance.

Specifications and technical data

• SKU: A2742000256
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2742000256
• Substitutable numbers: A2742000256, A 274 200 02 56
• Category: Water Pumps

Purpose and Function in the Cooling System

The water pump hose in the Mercedes W213 is responsible for the controlled flow of coolant between the pump and selected engine cooling channels. A correctly chosen part:

• maintains the sealing of the cooling circuit in the critical section near the water pump,
• ensures stable coolant flow under various engine loads,
• reduces the risk of engine overheating caused by leaks or hose deformation.

Thanks to its factory design, the hose works with the original water pump and other system components, facilitating installation and reducing the risk of operational issues after repair.

Original Origin and OEM Fitment

The presented Mercedes W213 Water Pump Hose is an OEM part, designed specifically for the engine geometry used in this generation. This means:

• retention of factory mounting points and hose routing,
• compatibility with original seals and connectors,
• no need for modifications or adjustments during installation.

This solution is particularly beneficial for servicing Mercedes vehicles, where maintaining compliance with the manufacturer's technical documentation and predictable cooling system behavior over the long term are crucial.

Characteristics of a Used Part

The offered water pump hose is a used part, which helps reduce repair costs while maintaining the original design specifications. In practice, this means:

• retention of the factory shape and bore diameters,
• possibility of installation as a replacement for a damaged or leaking hose,
• a sensible compromise between price and compliance with the factory solution.

Before installation, a standard inspection of the sealing surfaces is recommended, and the potential use of new seals according to the manufacturer's service procedure.

Support for Selection and Integration with Other Systems

The water pump hose operates in close proximity to other engine components, including fuel system elements and accessories. For comprehensive engine unit servicing, it is advisable to pay attention to the correct selection of parts based on manufacturer markings and service documentation. A helpful guide for diagnosing and selecting engine supply components can be found in the article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which describes, among other things, the operating principles of components that contribute to the engine's operating environment.

Expanding the Mercedes Cooling System

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other parts from the same group, such as additional hoses, connectors, or housings that work with the pump, check the available parts in the Mercedes Water Pumps category.

Why Use an Original Water Pump Hose

Using an original water pump hose in the Mercedes W213 maintains the consistency of the entire cooling system with the factory design. This solution is particularly recommended when you prioritize:

• stable engine operating temperature in city and highway driving,
• reducing the risk of failures due to leaks or improper hose fitment,
• easier future diagnostics – the mechanic works with parts that comply with service documentation.

By choosing this component, you are investing in a consistent and predictable cooling system, which translates to a longer lifespan for the engine and greater confidence during daily vehicle operation.