Mercedes W204 Coolant Pipe M274 Petrol Coolant Water Pump Line A2742000751

The Mercedes W204 M274 Coolant Hose Water Pump Pipe M274 is an original cooling system component designed for gasoline engines, ensuring a stable flow of coolant between the water pump and other components. Thanks to its factory geometry and precise fit for the M274 unit, the hose maintains the engine's proper thermal operating parameters, contributing to its safe and predictable operation. This is a practical solution for users seeking a tested, used part with preserved functionality.

Specifications and technical data

• SKU: A2742000751
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2742000751
• Substitutable numbers: A2742000751, A 274 200 07 51
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The presented water pump pipe operates within the gasoline engine cooling system, responsible for the directional transport of coolant. A correctly selected hose in this area minimizes the risk of localized overheating, supports uniform heat dissipation from the engine block, and stabilizes the operating temperature of the M274 unit under both urban and highway conditions.

This element belongs to the Cooling System Hoses and Pipes group, meaning it works in conjunction with the radiator, thermostat, heater core, and other fluid pipes. The proper routing and rigidity of the pipe minimize stress on the water pump outlets and are crucial for the long-term operation of the vehicle.

Benefits of Using an Original Mercedes Hose

Using an original hose in the cooling system of the W204 with an M274 engine offers several technical advantages:

• maintaining the factory coolant flow path,
• appropriate diameter matching for the pump outlets and other components,
• reducing the risk of leaks at connections,
• stable cooperation with gasoline engine accessories.

As a result, the cooling system maintains proper operating pressure, and the engine operates within the manufacturer's specified temperature range, contributing to the longevity of the powertrain and its accessories.

Characteristics of the Used Component

The offered hose is a used part, sourced from disassembly, allowing for a combination of reasonable cost with the preservation of original manufacturer specifications. This type of solution is particularly attractive for maintenance repairs where geometric and material compatibility with the specific engine is crucial, while also considering service economy.

Choosing a used cooling system hose is also significant for workshops specializing in the Mercedes brand, where the ability to quickly replace a component with a part of known construction and operating parameters is important.

Application in M274 Gasoline Engines

The water pump pipe is designed to work with M274 gasoline engines used in the Mercedes W204. Its specific shape, length, and routing are adapted to the particular layout of accessories in the engine bay, facilitating installation and reducing the need for additional modifications.

Correctly selecting the hose for the fuel type is important for the thermal stability of the unit, as the operating characteristics of a gasoline engine differ from a diesel engine in terms of generated temperature and thermal load on individual components.

Cooling System Expansion and Additional Information

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and require other components from the same group, such as additional fluid pipes, flexible hoses, or connecting sections to the radiator, check the available parts in the Mercedes Cooling System Hoses and Pipes category.

To better understand how the condition of hoses, radiators, and fans affects the thermal safety of the powertrain in high temperatures, it is worth reading the guide “Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings”, which discusses practical aspects of operating and selecting cooling system components.