Heater Pipe Mercedes W177 W247 OM654 Water Hose Coolant Pipe Line A1775011301

Heater Pipe Mercedes W177 W247 OM654 Water Hose Coolant Pipe Line is a cooling system component responsible for the efficient flow of fluid between the engine and the heater core. This used water hose ensures a factory-fit for OM654 units, which facilitates maintenance and reduces the risk of compatibility issues. It is a practical solution for users who want to restore the proper operation of the cooling system without investing in more expensive replacements.

Specifications and technical data

• SKU: A1775011301
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1775011301
• Substitutable numbers: A1775011301, A 177 501 13 01
• Fuel type: Diesel
• Category: Coolant Hoses

Purpose and function in the cooling system

The described pipe belongs to the Cooling system pipes and hoses group and works with the diesel engine, ensuring the circulation of coolant between the block and the heater core. A correctly selected component in this section has a direct impact on:

• stable operating temperature of the diesel power unit,
• efficient heating of the vehicle interior,
• dissipation of excess heat from the engine area,
• reducing the risk of overheating under heavy load.

Thanks to a design tailored to the specific W177 and W247 body generations, the pipe maintains the correct routing in the engine bay, which facilitates installation and minimizes stress during operation.

Compatibility with diesel units

The pipe has been designed to work with the OM654 diesel engine, which means it is compatible with the operating temperatures and pressures in the cooling system characteristic of this unit. In practice, this translates into:

• stable coolant flow under various engine loads,
• proper cooperation with the factory water pump and heater core,
• maintaining the original geometry of the pipe routing in the engine bay.

For the user, this means the possibility of recreating the factory cooling system configuration without the need for modifications or the use of universal hoses.

Characteristics of the used component

The offered pipe is a used component, sourced from disassembly, which allows for combining reasonable cost with maintaining the manufacturer's original specifications. This type of part is particularly attractive in situations where:

• the existing pipe has cracked, delaminated, or developed a leak,
• a quick repair of the cooling system is necessary on a limited budget,
• components with factory shape and mounting points are preferred.

Choosing an original pipe from disassembly reduces the risk of problems with matching diameters, lengths, or mounting points, which are typical for some aftermarket replacements.

Importance for cooling system reliability

A functional heater pipe is crucial for the safety of diesel engine operation. Leaks in this area can lead to:

• loss of coolant and overheating of the power unit,
• insufficient cabin heating,
• air locks in the cooling system and a drop in its efficiency.

Replacing a worn component with an original pipe with the correct routing and diameter allows for restoring proper fluid circulation, which promotes stable engine operating temperature and comfort of vehicle use in both winter and summer seasons.

Technical support and additional materials

To better understand how operating conditions affect the entire cooling system, it is worth checking out a guide describing the impact of high temperatures on cooling efficiency and the cost-effectiveness of using parts from disassembly, such as radiators or fans – details can be found in the article Summer heat vs. cooling system – used radiators and fans.

If you are planning a comprehensive repair or upgrade of the cooling system area in your Mercedes and need other components from the same group, such as water pipes, heater hoses, or fluid return lines, check the available parts in the Mercedes cooling system pipes and hoses category.