Mercedes W204 X253 M274 Water Pipe Engine Cooling Coolant Hose Line A2742001751

Mercedes W204 X253 M274 Water Pipe Engine Cooling Coolant Hose Line is an original cooling system component designed for gasoline engines, specifically engineered for Mercedes vehicles. The precise geometry of the hose ensures stable coolant flow, which supports safe engine operation under a wide range of loads.

Specifications and technical data

• SKU: A2742001751-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2742001751
• Substitutable numbers: A2742001751, A 274 200 17 51, A 274 200 44 00, A2742004400
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and function in the cooling system

The described hose belongs to the Cooling system hoses and pipes group and is responsible for directing coolant flow between engine components and other parts of the system. In M274 series gasoline engines, proper fluid circulation is crucial for maintaining a stable operating temperature, reducing the risk of overheating, and preserving appropriate thermal efficiency. The original design of the hose ensures:

• precise fitment to mounting points in the engine bay,
• properly selected inner diameter for correct flow,
• stable operation within typical temperature and pressure ranges of the cooling system.

Benefits of using an original Mercedes hose

Using a factory cooling hose in an M274 gasoline engine allows you to maintain the parameters specified by the vehicle manufacturer. Original geometry and material minimize the risk of leaks, incorrect positioning in the engine bay, or interference with other components. The most important advantages include:

• secure fit with cooling system ports and connectors,
• preservation of the factory hose routing, which facilitates service and diagnostics,
• compatibility with gasoline engine accessories without the need for modifications.

Performance characteristics of the used component

The cooling hose is offered as a used part, which allows for cost-effective repair while maintaining an OEM component. This type of solution is particularly beneficial for vehicles where it is important to maintain the original cooling system configuration without resorting to budget replacements with uncertain parameters. In practice, this means the ability to restore proper coolant circulation in a gasoline engine without interfering with the system's design, while maintaining compliance with the manufacturer's factory specifications.

Technical support and component selection

When selecting a cooling hose for a specific body and engine version, it is important to verify compatibility with the engine designation and cooling system configuration. If in doubt, it is worth comparing the shape and mounting points with the currently installed part to ensure trouble-free installation and proper positioning in the engine bay. If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as additional pipes, hoses, or cooling system connectors, check the available parts in the Mercedes cooling system hoses and pipes category.

Cooling system safety and expert knowledge

A functional cooling hose has a direct impact on the stability of the engine's operating temperature, and thus on the durability of the engine unit and its accessories. In case of cooling system problems, it is worth expanding your knowledge about the impact of component quality on engine safety – you can find practical information in the article Cooling system failure: why is an original used radiator a safer choice than a cheap replacement?, which discusses the consequences of using random replacements in critical cooling system components. Additionally, if you are considering a choice between a used OEM component and a budget replacement, the material Cheap car part replacements – hidden defects and costs that workshops rarely talk about, describing the technical and operational differences between these solutions, may be helpful.