BMW 1 3 5 Series F10 F20 F21 LCI F30 F31 Transmission Oil Cooler Line 8570449

BMW F20 F30 LCI Oil Cooler Hose is an original lubrication system component designed for facelifted BMW 1 and 3 Series models. As part of the Oil Coolers and Hoses category, it ensures stable oil flow to the cooler, supporting safe engine operating conditions. A used OEM component is a sensible choice for drivers seeking a technically matched solution at an attractive price.

Specifications and technical data

• SKU: 8570449
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8570449
• Substitutable numbers: 8570449, 17228570449EM, 51177270761, 7270761
• Location on the vehicle: Left
• Category: Oil Coolers & Lines

Intended Use and Fitment for BMW F20 / F30 LCI

The BMW F20 F30 LCI Oil Cooler Hose has been specifically designed for the lubrication system in facelifted compact and mid-size BMW models. The hose's construction is adapted to the factory routing of the installation, which facilitates assembly and allows for the preservation of the original oil line path within the engine bay.

The component is intended for installation on the left side of the vehicle, in accordance with the factory hose layout. This allows a mechanic to easily replicate the original hose routing, minimizing the risk of interference with other components and ensuring adequate protection against heat and vibrations.

Construction and Role in the Oil Cooling System

The hose is part of the group of components responsible for transporting oil between the engine and the oil cooler. Its functions include:

• maintaining stable oil flow under pressure,
• ensuring the sealing of the lubrication system,
• resistance to high operating temperatures in the engine bay,
• correct positioning relative to the oil cooler and engine block.

Thanks to its factory design, the hose works with original mountings and brackets, which reduces stress and lowers the risk of mechanical damage during operation. This is particularly important in cars used for dynamic driving, where the lubrication system is under significant load.

Benefits of Using an Original Oil Cooler Hose

Choosing an original hose from the Oil Coolers and Hoses category for your BMW offers a range of practical advantages:

• Factory Fitment – maintaining the original hose geometry simplifies installation and reduces service time.
• Compatibility with the Oil Cooling System – the hose works with the stock oil cooler and other system components.
• Stable Operating Parameters – appropriately selected hose diameters and cross-sections help maintain proper oil flow.
• Operational Safety – a correctly chosen hose reduces the risk of oil leaks, which could lead to engine overheating or damage.

Condition, Origin, and Service Application

The offered hose is a used component, sourced from the disassembly of an original BMW vehicle. Such parts are often chosen by workshops and individual users as an economical alternative to new OEM components, while maintaining factory fitment and construction.

The hose is suitable for both standard replacement of a damaged part and for post-accident repairs where the complete oil cooling system needs to be restored. By adhering to the original specifications, installation is predictable, and the risk of compatibility issues is minimized.

Technical Support and Additional Materials

When working with the oil cooling system, it's important to consider the overall condition of the entire engine cooling system. High temperatures, especially in summer, put a significant strain on both the coolant radiator and the oil cooler. If you want to better understand how to care for these components and when to consider replacing parts with used ones, check out our guide: Summer Heat vs. Cooling System – Used Radiators and Fans as a Way to Save.

If you are looking for other BMW Oil Coolers and Hoses compatible with your model, explore our dedicated offer: BMW Oil Coolers and Hoses. This is a convenient way to select compatible oil lubrication and cooling system components in one place.

For drivers who want to combine servicing with environmental and budget consciousness, we also recommend our article on the benefits of salvaged parts: Eco-Friendly Driving and the Benefits of Used Car Parts. You'll find practical arguments there for choosing proven used components, such as oil cooler hoses.