BMW E81 E82 E87 E90 E91 Exhaust Manifold Engine Oil Hose Pipe 7797405

Visual condition of the part 

The product shows signs of use visible in the photos. 

BMW E81 E82 E87 E90 E91 Exhaust Manifold Engine Oil Hose Pipe is an original component from the Lines, hoses and pipes group, designed for the precise delivery of oil to the turbocharger in selected BMW 1 and 3 Series models. Thanks to its factory geometry and fitment to the lubrication system, it ensures stable turbine operating conditions and reduces the risk of leaks in this critical area of the engine.

Specifications and technical data

• SKU: 7797405
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7797405
• Substitutable numbers: 11427797405, 7797405
• Category: Hoses, Lines & Pipes

Purpose and function in the lubrication system

The turbocharger oil supply hose in BMW E81, E82, E87, E90 and E91 models is responsible for the controlled delivery of engine oil to the turbine bearings. A correctly selected hose:

• maintains proper oil pressure within the turbocharger,
• minimizes the risk of overheating of the rotor components,
• limits the possibility of leaks at the connections with the engine block and the turbine housing,
• supports stable operation of the power unit under load.

Thanks to a design consistent with factory solutions, this hose is the right choice for turbocharger system repairs, especially where maintaining the original oil flow characteristics is essential.

Advantages of using an original BMW hose

Using an original BMW oil hose instead of a worn-out component allows you to maintain the factory operating parameters of the turbocharger. Key benefits include:

• Precise fit to the lubrication system – the appropriate length, shape, and diameter of the hose facilitate installation in the tight space of the engine bay.
• Turbine operating stability – the hose is designed for specific power units to ensure predictable oil flow.
• Reduction of failure risk – proper oil supply reduces bearing load and lowers the risk of turbocharger seizure.

By choosing this component, you benefit from a solution compliant with BMW factory specifications, which is particularly important in vehicles driven dynamically or with mileage that already requires intervention in the turbocharger system.

Product characteristics and installation

The turbocharger oil supply hose belongs to a group of components that operate under high temperature and pressure, which is why its condition has a direct impact on engine safety. The offered item, as a part from the Lines, hoses and pipes category, has been designed to work with factory mounts and connections in BMW E8x and E9x series units.

When replacing the hose, it is recommended to:

• check the cleanliness of the oil channels in the engine and turbocharger,
• verify the condition of the seals at the hose connections,
• carefully route the hose according to the factory path to avoid chafing and excessive stress.

This installation method allows you to fully utilize the advantages of the original design and reduce the risk of repeated interventions in the lubrication system.

Why choose an original used component

An original BMW oil hose, even as a used part, retains the geometry and manufacturing standard intended by the vehicle manufacturer. In practice, this means:

• better compatibility with factory mounting points than many aftermarket replacements,
• consistency with other elements of the lubrication and turbocharging system,
• a favorable cost-to-quality ratio compared to random non-factory solutions.

This approach is consistent with the philosophy of repairs based on OEM parts, described in more detail in the article on the advantage of used OEM components over unreliable replacements, where the role of original components in the durability of the powertrain is emphasized.

Complementary items from the same group

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other items from the same group, such as additional oil lines, oil return hoses, or lubrication system pipes, check the available parts in the BMW Lines, hoses and pipes category.