Fuel Feed Pipe BMW E90 E91 LCI F10 F20 N47N Hose Overflow Oil Line Hose 7823408

Fuel Feed Pipe BMW E90 E91 LCI F10 F20 N47N Hose Overflow Oil Line Hose is an original oil system component, designed specifically for BMW N47N series diesel engines in E90, E91 LCI, F20, and F30 models. Thanks to its precise fit to factory mounts and connectors, it ensures stable oil flow and proper operation of the power unit. This is a solution for users who are looking for a proven, OEM-compliant design instead of universal replacements.

Specifications and technical data

• SKU: 7823408
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7823408
• Substitutable numbers: 7823408, 13537823408
• Category: Hoses, Lines & Pipes

Purpose and function of the oil overflow hose

The oil overflow hose in a diesel engine is responsible for the controlled drainage of oil from selected lubrication system components, which helps maintain proper pressure and reduces the risk of local overheating. In N47N units, this is particularly important due to the compact engine design and high thermal loads typical of modern BMW diesels.

The original geometry of the hose allows for maintaining the correct oil line routing, minimizing stress, twisting, and potential leak points. This is especially important during long-term operation, when the lubrication system must work under repeatable, predictable conditions.

Benefits of using an original BMW hose

Using a factory oil overflow hose in an N47N engine brings a number of practical operational benefits:

• secure fit to standard mounts and connectors in E90, E91 LCI, F20, and F30 models,
• preservation of the factory oil routing, which reduces the risk of abrasion and leaks,
• compatibility with the lubrication system parameters specified by the manufacturer,
• easier diagnostics and future service thanks to compliance with BMW documentation.

For users who want to keep their BMW in a configuration close to the factory state, choosing an original hose from the Lines, Hoses, and Pipes category is a more predictable solution than installing universal components.

Component condition and installation aspects

The offered hose is a used part, sourced from dismantling, which allows for maintaining the original specification while reducing costs. Such components are frequently chosen by workshops specializing in the BMW brand, as they enable economical repair while maintaining compliance with factory solutions.

Due to the design intended by the manufacturer, installation in compatible models usually proceeds in a plug-and-play manner, without the need for system modifications. It is recommended that the replacement be performed by a mechanic familiar with the specifics of N47N engines, which facilitates proper hose positioning and leak testing after installation.

Application in service and oil system maintenance

Replacing the oil overflow hose is particularly recommended during:

• work related to the regeneration or replacement of engine auxiliary components,
• detected oil leaks in the area of lines and connectors,
• preventive maintenance of high-mileage N47N units, when flexible lubrication system elements are already significantly worn.

Selecting parts by OEM number or VIN allows you to avoid mistakes and ensures compatibility with a specific engine version. You can find more about the safe selection of original components and how used parts can support the longevity of BMW units in the article: BMW – sports performance and precision with original used parts.

Why it is worth choosing original BMW hoses

Original BMW oil hoses are designed for specific power units, which translates into stable lubrication system operating parameters and predictable engine behavior over the long term. In the case of N47N units, where lubrication precision has a direct impact on the durability of key components, using the correct overflow hose is an essential element of preventive maintenance.

If you are planning comprehensive oil system maintenance or are looking for other items of this type for your BMW, it is worth checking out the other products in the Lines, Hoses, and Pipes category to select a set of parts corresponding to the scope of planned work.

More practical tips on selecting and operating original BMW components can be found in our guide: how to safely select used BMW parts by OEM number and VIN, which will facilitate informed planning of repairs and upgrades for your car.