Mercedes W213 M274 Water Hose Cooling Coolant Pipe Line Tube A2742002551

Mercedes W213 M274 Water Hose Cooling Coolant Pipe Line Tube is an original cooling system component designed for petrol engines, specifically engineered for W213 series models with the M274 engine. Thanks to its factory geometry and fitment, the hose ensures stable coolant flow and proper cooperation with other system components. It is a practical solution for users who want to maintain engine performance parameters in accordance with the manufacturer's specifications.

Specifications and technical data

• SKU: A2742002551-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2742002551
• Substitutable numbers: A2742002551, A 274 200 25 51
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and function in the cooling system

The water pipe hose in the Mercedes W213 with the M274 engine is responsible for directing coolant between key system components. A correctly selected component:

• maintains the tightness of the coolant circuit under typical operating loads,
• ensures the appropriate flow cross-section, which supports stable operating temperatures for the petrol unit,
• reduces the risk of localized overheating and loss of cooling efficiency.

Thanks to a design consistent with factory solutions, the hose works with the stock coolant pump, radiator, and other cooling system hoses, which facilitates seamless integration with the existing installation.

Benefits of using the original hose in the Mercedes W213 M274

Using a water pipe hose dedicated to a specific engine and body configuration provides measurable technical benefits:

• Factory geometric fitment – proper positioning relative to the engine block and accessories minimizes stress and the risk of abrasion.
• Optimal coolant path – maintaining the manufacturer-designed flow direction promotes even heat dissipation.
• Compatibility with the petrol system – the hose is adapted to the operating conditions typical for petrol-powered engines, including characteristic temperature ranges.
• Suitability for repair services – the part is suitable both for replacing a damaged component and for comprehensive cooling system maintenance.

Characteristics of the used component

The offered hose comes from a group of used parts, which allows for economical repair while maintaining the original design specifications. This type of component is particularly useful when the priority is:

• maintaining compliance with the factory cooling system design,
• reducing service costs while utilizing a component manufactured for the Mercedes brand,
• replacing a missing or damaged hose in an existing installation without interfering with its overall architecture.

Choosing an original, used water pipe hose is a reasonable compromise between costs and maintaining the proper operating parameters of the cooling system.

The importance of the correct hose for a petrol engine

In petrol engines, such as the M274 unit in the Mercedes W213, a stable operating temperature has a direct impact on component durability and engine refinement. A functional water pipe hose:

• supports the maintenance of the proper temperature for the cylinder head and block,
• reduces the risk of overheating in urban conditions and under higher loads,
• allows for the maintenance of proper conditions for auxiliary systems, such as lubrication or engine management.

For users who want to better understand the impact of the cooling system on engine durability, the article Engine cooling system – overheating, repair, and used radiators, which discusses practical aspects of diagnostics and service, will be helpful.

Expanding cooling system service and part selection

When working on the cooling system, it is worth treating it as a coherent system in which pipes, hoses, the radiator, and other elements work together. If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional pipes, return hoses, or connecting sections, check the available parts in the Mercedes cooling system pipes and hoses category.

If you want to plan your purchases more efficiently and complete a larger set of original used parts in one place, the guide Comprehensive procurement – how to complete used car parts in one place, which describes a practical approach to selecting service components, may be helpful.