BMW F87 M2 F20 F30 Coolant Hose Pipe Line Tube Radiator N55 7604542

BMW F87 M2 F20 F30 Coolant Hose Pipe Line Tube Radiator is an original cooling system component designed for precise coolant routing in N55 engines. Thanks to its factory geometry and fitment tailored to the specific engine bay architecture, it ensures stable coolant flow and proper integration with other system components.

Specifications and technical data

• SKU: 7604542
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7604542
• Substitutable numbers: 17127604542, 7604542
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented hose belongs to the Cooling system hoses and pipes category, responsible for transporting coolant between key engine and radiator components. For N55 units in BMW F87 M2, F20, and F30 models, a correctly selected hose minimizes the risk of localized overheating, leaks, and pressure drops in the circuit.

A properly shaped coolant pipe:

• maintains the fluid flow path designed by the manufacturer,
• ensures compatibility with ports and connectors in the specific engine variant,
• reduces stress resulting from engine operation and chassis vibrations.

Benefits of using an original BMW hose

Using an original coolant hose in an N55 engine translates into a number of practical operational benefits. A component designed by the vehicle manufacturer guarantees:

• precise fitment to the cooling system without the need for modifications or adapters,
• proper cooperation with factory clamps and mounting brackets,
• preservation of the fluid flow characteristics intended by the engineers.

As a result, you reduce the risk of uncontrolled leaks, bleeding issues, and a drop in cooling efficiency under high engine load, which is particularly important in more dynamic models such as the BMW M2.

Installation and operational characteristics

The coolant hose dedicated to the N55 unit in F87, F20, and F30 bodies is structurally prepared for installation at factory mounting points. The appropriate length, connection diameters, and bend shapes facilitate quick replacement by technicians in workshop conditions.

When replacing the hose, it is recommended to:

• check the condition of other hoses and connectors in the cooling system,
• replace or top up the coolant according to the vehicle manufacturer's recommendations,
• thoroughly bleed the system after installation is complete.

This approach helps maintain a stable engine operating temperature and reduces the risk of failures resulting from engine overheating.

Component condition and use in service practice

The offered hose comes from a group of used parts, making it an attractive cost-effective alternative while maintaining factory design specifications. Such components are frequently used in professional workshops specializing in the BMW brand, especially for repairs where maintaining the original cooling system geometry is crucial without investing in brand-new subassemblies.

By choosing this component, you gain the ability to restore full functionality to the coolant circuit in the N55 engine, which has a direct impact on the durability of the engine and the comfort of daily vehicle operation.

Cooling system expansion and additional information

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as additional lines, hoses, or coolant pipes, check out the available parts in the BMW cooling system hoses and pipes category.

To better understand the impact of a functional coolant circuit on engine longevity and the symptoms of overheating, it is worth checking out the guide on our blog: Engine cooling system – overheating, repair, and used radiators. You will find practical tips there that will help you assess the condition of the cooling system in your car and plan further service actions.