BMW F10 F11 LCI B47 Radiator Hose Pipe Transmission Oil Cooler 8571804

BMW F10 F11 LCI B47 Radiator Hose Pipe Transmission Oil Cooler is an original transmission oil cooling system component, designed for BMW 5 Series F10/F11 LCI (facelift) models with the B47 engine. The precisely shaped pipe ensures stable flow of the cooling medium between the radiator and the transmission, supporting safe drivetrain operation. Thanks to its design compliant with the manufacturer's standards, it is a solution perfectly matched to the factory installation.

Specifications and technical data

• SKU: 8571804
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8571804
• Substitutable numbers: 17128571804, 8571804
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

The presented hose-pipe operates within the transmission oil cooling circuit, responsible for transporting fluid between individual system components. The correctly selected cross-section and shape of the conduit help maintain proper pressure and cooling efficiency, which translates into stable transmission oil temperature during both city and highway driving.

This component is particularly important in vehicles operated in variable thermal conditions, where the transmission cooling system must work in a repeatable and predictable manner. The appropriate geometry of the conduit limits the risk of local stress, kinks, and leaks in connection zones.

Construction and fitment for BMW F10/F11 LCI B47

The pipe has been designed for specific routing in the engine bay of the BMW 5 Series F10/F11 LCI with the B47 unit. This means:

• factory fitment to mounting points and brackets in the body,
• proper profiling for standard conduit routing,
• compatibility with original transmission oil cooling system connectors.

As a result, installation is orderly, without the need for modifications or makeshift workarounds. Replicating the factory geometry of the conduit promotes maintaining the correct alignment relative to other components in the engine bay.

Benefits of using an original BMW conduit

Choosing an original conduit from the Conduits, hoses and pipes group provides a range of practical benefits in daily operation:

• maintaining transmission oil cooling system performance parameters in accordance with the manufacturer's specifications,
• reduced risk of leaks resulting from poor fitment of aftermarket replacements,
• easier diagnostics and service due to compliance with BMW technical documentation.

For workshops and private users, this means more predictable installation and the possibility of seamless integration with other drivetrain components. Consistency with the factory design is particularly valuable for vehicles serviced according to the manufacturer's guidelines.

Service application and best installation practices

Replacing the transmission oil cooling conduit is recommended, among other things, in the event of detected leaks, signs of corrosion, mechanical damage, or during major drivetrain work. During installation, it is worth paying attention to:

• correct placement of the conduit in factory guides,
• checking the condition of connectors and seals of mating components,
• proper system bleeding after completing the work.

Such an approach allows for maintaining safe transmission operating conditions and limiting the risk of repeated service interventions in the short term.

Integration with other system elements and additional information

The conduit works with other oil cooling system components, creating a coherent flow system. In the case of planned broader modernization or repair, it is worth considering an inspection of other conduits and pipes in the vehicle. You can find a full range of similar items in the Conduits, hoses and pipes category, which makes it easier to select a set of parts for a specific scope of work.

For those interested in a broader context of technical solutions used in premium class cars, an article discussing the development of advanced systems in luxury vehicles may also be helpful – check the analysis of the evolution of the Mercedes S-Class and spare parts selection to better understand how manufacturers design modern drivetrain and cooling systems.

The product comes from the BMW range, which for many users confirms compliance with factory design and assembly standards. For workshops specializing in the BMW brand, this is a practical solution that allows for service based on components consistent with the manufacturer's documentation.