Description
BMW X3M F97 X4M F98 S58 Turbocharger Oil Return Hose Cylinder 1-3 is an original equipment turbocharger and parts component designed for the S58 engine in the sporty BMW X3M and X4M models. This hose provides factory-installed oil return from the turbocharger for the first cylinder bank, which is important for stable lubrication system operation and turbocharger durability.
Specifications and technical data
- SKU: 8054871
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 8054871
- Substitutable numbers: 8054871, 11428054871
- Category: Turbos & Parts
Purpose and function in the supercharging system
This cyl. 1-3 turbocharger oil return line operates in the turbocharger lubrication system of the S58 engine, used in the BMW X3M F97 and BMW X4M F98. It is responsible for returning oil from the turbocharger housing to the rest of the lubrication system, reducing the risk of overheating, excessive bearing wear, and leaks.
Selecting a component that complies with the original BMW specification allows for maintaining the correct oil flow parameters and therefore stable operation of the turbocharger under high loads typical of the S58 engine.
Construction, fitting and assembly
This hose belongs to the Turbocharger and Parts group, meaning it’s designed for specific mounting points and routing within the BMW X3M and X4M engine compartment. The hose’s original geometry facilitates installation in the factory brackets and ensures proper routing relative to hot exhaust system components.
In practice, this translates into:
- reliable fit with the turbocharger and S58 engine block,
- maintaining the oil return route provided by the manufacturer,
- reducing stresses and vibrations acting on the cable during operation of the drive unit.
The component is used, which in the case of original BMW components often allows for a favorable cost-to-quality ratio while maintaining the factory design and fit.
Condition, verification and service application
The hose is offered in used condition, which is important when planning a repair or upgrade to the supercharger system. This type of component is most often used for:
- regeneration or replacement of the turbocharger in the S58 engine,
- removing leaks in the oil circuit in the turbocharger area,
- restoring the factory configuration after previous modifications.
Choosing an original equipment oil return line reduces the risk of fitment issues that can occur with parts of questionable origin. This is especially important in highly loaded engines like the S58 in the BMW X3M and X4M.
Benefits of using the original BMW cable
The use of the original turbocharger oil return line in the BMW X3M F97 and X4M F98 brings a number of practical service benefits:
- factory fit for the S58 engine and turbocharger system,
- maintaining the oil flow parameters specified by the manufacturer,
- reducing the risk of leaks and turbocharger overheating,
- easier installation thanks to compatibility with original mounting points.
For workshops specializing in the BMW brand and users who care about the technical correctness of repairs, choosing an original component from the turbocharger and parts category is a safe and predictable solution in terms of operation.
OEM parts selection and substantive support
When selecting a turbocharger oil return line for the BMW X3M and X4M, it’s crucial to use the manufacturer’s designations and interchangeable numbers. This helps avoid confusion between different engine variants and trim levels. For a better understanding of how to safely buy used turbocharger components online, check out Global Parts’ guide: Safely Buying Used Car Parts Online – A Step-by-Step Guide .
If you are also looking for other turbochargers and supercharger components dedicated to this brand, check out our offer for turbochargers and parts for BMW , where you will find a wide selection of components adapted to the X3M, X4M and other series models.
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