BMW E90 E91 E92 LCI E93 M57N2 Oil Cooling Pipe Inlet Outlet Tube

BMW E90 E91 E92 LCI E93 M57N2 Oil Cooling Pipe Inlet Outlet Tube is an original oil cooling system component designed for use in popular 3 Series models. Thanks to its factory geometry and precise fitment to the oil system, it ensures stable routing of the working medium and helps maintain the correct engine operating temperature. This is a practical solution for users looking for a proven oil pipe with a design that meets manufacturer standards.

Specifications and technical data

• SKU: 7804147-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7804147
• Substitutable numbers: 17227804147, 7804147, 17228509708, 8509708, 17227800494, 7800494, 17227789598, 7789598, 17228509709, 8509709, 17227789599, 7789599, 17227804148, 7804148, 17227800495, 7800495
• Category: Hoses, Lines & Pipes

Purpose and function of the oil cooling pipe

The oil cooling pipe in the BMW E90, E91, and E92 series is responsible for the safe delivery and return of oil between the lubrication system components and the heat exchanger or oil cooler. A properly selected pipe:

• maintains the integrity of the oil system under varying operating pressures,
• ensures stable oil flow under high-temperature conditions,
• minimizes the risk of leaks and pressure drops,
• supports the maintenance of optimal oil temperature, which translates into engine durability.

Thanks to a design consistent with factory solutions, the pipe maintains the proper rigidity and flexibility in mounting areas, which facilitates installation in the engine bay.

Construction and fitment for the BMW 3 Series

This item belongs to the Pipes, hoses, and tubes category, meaning it has been designed to operate in an environment of engine oil and high temperatures. The shape and connection points are adapted to the factory oil cooling system in the BMW 3 Series E90, E91, and E92 generations, allowing the pipe to:

• fit original brackets and mounts on the body and engine,
• maintain the standard routing of the oil system,
• reduce stress on connections due to its appropriately selected length and profile.

Such fitment promotes trouble-free replacement during standard service procedures, without the need to modify other components.

Characteristics of the used part

The offered oil cooling pipe is a used component, sourced from dismantling. This type of part allows for a significant reduction in repair costs compared to purchasing a new component, while maintaining the original design and compatibility with the factory system. In practice, this means:

• retaining standard oil flow parameters,
• no need for system adaptation,
• the possibility of an economical repair of the oil cooling system in daily-driven vehicles.

For many BMW 3 Series users, this is a reasonable compromise between cost and functionality, especially during comprehensive engine service work.

Benefits of using an original oil cooling pipe

Using an oil cooling pipe dedicated to specific BMW models translates into a number of practical operational benefits:

• Stable lubrication system operation – proper oil flow supports the protection of moving engine parts.
• Better oil temperature control – a properly functioning pipe helps maintain thermal parameters within the range specified by the manufacturer.
• Reduced risk of leaks – matched connectors and proper geometry reduce stress on joints.
• Easier service installation – compatibility with factory mounting points shortens replacement time.

For workshops and individual users, this means a more predictable repair process and the ability to maintain the standard configuration of the oil system.

Related BMW oil cooling system components

If you are planning a comprehensive repair or upgrade of your BMW's engine area and need other components from the same group, such as additional oil lines, flexible hoses, or rigid tubes for the working medium, check out the available parts in the BMW pipes, hoses, and tubes category.

How to make informed choices when buying used parts

When selecting a used oil cooling pipe, it is worth paying attention to compatibility with the specific engine version and cooling system of your vehicle. Information about the OEM part number, interchangeable numbers, and manufacturer markings, which you can find in the technical specifications section, may be helpful.

If you want to better understand how to safely and reasonably purchase components from the secondary market, check out our guide: Used parts – Your guide to the best deals in our automotive store. This will make it easier for you to assess when choosing a used part is the optimal solution for your BMW.