BMW F10 F11 LCI B47 Diesel Hose Cylinder Head Radiator Pipe Line 8571801

Visual condition of the part

The product shows signs of use visible in the photos.

BMW F10 F11 LCI B47 Diesel Hose Cylinder Head Radiator Pipe Line is an original cooling system component designed specifically for B47 engines. Thanks to its factory-spec geometry and fitment, it ensures stable coolant flow between the cylinder head and the radiator, which translates into reliable engine operation under full load conditions. This used OEM part is a sensible choice for drivers looking for a proven and compatible solution without the need for any installation modifications.

Specifications and technical data

• SKU: 8571801-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8571801
• Substitutable numbers: 17128571801, 8571801, EM
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

The presented hose is part of the Hoses, pipes and lines group and is responsible for the controlled flow of coolant between the cylinder head and the radiator in post-facelift BMW 5 Series F10 / F11 models equipped with the B47 diesel engine. A correctly selected hose in this area is crucial for:

• maintaining a stable operating temperature of the power unit,
• preventing local overheating in the cylinder head area,
• preserving the factory performance parameters of the cooling system.

Thanks to a design consistent with the manufacturer's specifications, the hose works with standard connectors and mounts, which facilitates installation and reduces the risk of leaks.

Benefits of using an original BMW hose

Using an original hose in the B47 diesel engine cooling system allows you to maintain the factory coolant flow characteristics. In practice, this means:

• precise fit to the engine bay geometry – no need for bending or shortening the component,
• compatibility with standard clamps and brackets,
• preservation of the stiffness and flexibility intended by the manufacturer.

Compared to random aftermarket replacements, the used OEM part minimizes the risk of installation issues and unwanted stresses that could lead to premature wear or leaks.

Dedicated to the B47 diesel engine

The hose has been designed with the specifics of the B47 diesel unit in mind, where the cooling system must cope with high thermal loads and prolonged operation under heavy load. The hose design takes into account:

• the layout of accessories in the diesel engine bay,
• the coolant flow path from the cylinder head to the radiator,
• temperature conditions typical for modern diesel units.

As a result, the hose acts as a coherent element of the entire system, supporting the engine's thermal stability and the proper operation of other cooling components.

Condition, installation and service application

The item is offered as a used part, which allows for an economical repair of the cooling system while maintaining the manufacturer's original specifications. This type of hose is particularly suitable in situations where:

• it is necessary to replace a damaged or leaking section between the cylinder head and the radiator,
• mechanical damage to the hose has occurred after a collision or service intervention,
• you want to restore the cooling system to a configuration consistent with the factory BMW design.

The original shape and ends of the hose facilitate plug-and-play installation, without the need to modify the existing installation in the car.

Support with selection and additional information

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as return lines, supply hoses, or connecting pipes, check out the available parts in the BMW Hoses, pipes and lines category.

To better assess when it is worth choosing a used OEM part instead of a replacement, you can use our practical guide: 5 reasons why a used OEM part is a better choice than a replacement. This is a helpful source of knowledge when planning repairs for the cooling system and other components in your BMW.