Ford Focus ST Mk2 Engine Coolant Pipe Hose Tube 2.5 Petrol 1405169 6G9N-8274-JA

Ford Focus ST Mk2 Engine Coolant Pipe Hose Tube 2.5 Petrol is a component from the Cooling system hoses and pipes group, designed to operate in the demanding, high-load cooling system of a petrol engine. It is responsible for the stable flow of coolant in the water manifold, which has a direct impact on the operating temperature of the power unit and its durability. This is a practical solution for users looking for a proven, original component for their Ford with a 2.5 petrol engine.

Specifications and technical data

• SKU: 1405169
• Mark: Ford
• Condition: Used
• OEM Part Number: 1405169
• Substitutable numbers: 1405169, 6G9N-8274-JA, 6G9N8274JA
• Fuel type: Petrol
• Part type: Hose
• Category: Coolant Hoses

Purpose and function in the cooling system

The water manifold pipe in the Ford Focus ST Mk2 operates in a key area of the cooling system, connecting individual elements of the coolant circuit. Its task is to ensure the smoothest, unobstructed flow of the cooling medium, which helps maintain a stable temperature of the 2.5 petrol engine during city driving and dynamic operation. A properly selected water hose reduces the risk of local overheating, leaks, and pressure drops in the system. In the case of turbocharged units, such as the sports versions of the Focus, this is of particular importance for the longevity of the engine and its accessories.

Benefits of using an original Ford hose

Using an original Ford water hose instead of a worn-out component allows you to maintain the factory geometry of the coolant flow and the proper fit to the ports and mounts in the engine bay. Thanks to this:

• the risk of stress and cracks resulting from improper hose positioning is reduced,
• it is easier to maintain the tightness of connections at clamps and joints,
• installation is more efficient, without the need for modifications or adjustments to the shape. A used original component is a reasonable compromise between cost and quality – especially in cars operated intensively, where reliable cooling system operation and predictable behavior at high operating temperatures are essential.

Compatibility with the 2.5 petrol engine

The presented hose has been designed to work with a power unit powered by petrol, which means it is matched to the thermal characteristics of this type of engine. High operating temperature, rapid heating, and frequent load changes require the hose to be resistant to:

• continuous heating and cooling cycles,
• contact with coolant of specific chemical parameters,
• conditions prevailing in the engine bay, including vibrations and pressure fluctuations. Thanks to this, the water manifold pipe helps maintain the stability of the cooling system in typical and more demanding operating conditions, characteristic of the ST version.

Product condition and service application

The item comes from the used parts group, which makes it an attractive alternative for repairs where functionality and compliance with factory specifications are important. This type of hose will work well both for standard replacement of a worn-out element and for larger service work related to the cooling system – e.g., after a failure, engine overheating, or engine overhaul. Before installation, it is recommended to perform a standard check of tightness, connection surfaces, and external condition, followed by the use of new clamps and proper bleeding of the cooling system after filling it with fresh coolant.

Expanding knowledge about the cooling system

To better understand the impact of efficient hoses and water manifolds on engine durability, it is worth reading practical tips on diagnostics and repair of cooling systems – you will find them in the article Engine cooling system – overheating, repair, and used radiators, which discusses typical symptoms of overheating and the importance of proper coolant circulation. If you are planning a comprehensive repair or upgrade of the cooling system area in your Ford and need other elements from the same group, such as return hoses, radiator hoses, or sections connecting to the heater core, check the available parts in the Ford cooling system hoses and pipes category.