BMW F20 F21 F30 F31 F32 LCI Diesel B47 Coolant Hose Pipe Cylinder Head 8514050

BMW F20 F21 F30 F31 F32 LCI Diesel B47 Coolant Hose Pipe Cylinder Head is an original cooling system component designed for modern BMW diesel units. Thanks to its precise fitment to the diesel engine architecture, it ensures stable coolant flow and supports the safe thermal operation of the powertrain. This is a practical solution for users who want to maintain the factory engine performance characteristics and cooling system reliability.

Specifications and technical data

• SKU: 8514050
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6832804
• Substitutable numbers: 17128514050, 8514050, 17122795673, 2795673
• Fuel type: Diesel
• Category: Clamps & Hardware

Purpose and function in the cooling system

The presented coolant hose pipe works with the B47 engine in BMW 1 Series F20/F21 and 3 Series F30/F31 LCI (facelift) models. The component is responsible for the controlled transport of coolant between key sub-assemblies, which directly impacts the maintenance of the proper operating temperature of the diesel powertrain. A correctly selected water hose reduces the risk of overheating, leaks, and cooling system performance drops.

Construction and fitment for BMW F-series

The water pipe has been designed as a BMW part, maintaining factory diameters, shape, and mounting points. As a result:

• it ensures secure coolant routing within the B47 engine,
• it fits factory brackets and mounting clamps,
• it maintains proper alignment with other hoses and auxiliary components.

Such fitment facilitates installation and allows for the preservation of the original cooling system geometry, which is essential for both durability and future maintenance.

Benefits of using an original water hose

Using an original water hose in a BMW diesel engine provides measurable operational benefits:

• Stable engine operating temperature – proper coolant flow promotes even heat dissipation, which is significant for the durability of the B47 unit.
• Better system tightness – factory fitment of the ends and hose diameters reduces the risk of leaks at the connections.
• Consistency with other mounting elements – the hose works with original clamps and brackets, which simplifies service and potential future repairs.
• Seamless integration with diesel engine accessories – no need for modifications or fitting aftermarket replacements.

Application in service practice

Replacing the water hose in a B47 engine is particularly recommended in case of:

• detected leaks or micro-cracks in the old hose,
• cooling system modernization after a failure,
• preventive maintenance at higher mileages of the diesel unit.

Selecting a component from the Clamps and mounting parts group that complies with factory specifications allows for shorter repair times and reduces the risk of repeated interventions in the cooling system. This solution is particularly beneficial for workshops specializing in servicing BMW F-series models with diesel engines.

If you are planning a comprehensive repair or modernization of the cooling system area in your BMW and need other elements from the same group, such as clamps, brackets, or additional hose mounts, check the available parts in the BMW Clamps and mounting parts category.

Integration with electronics and control systems

An efficient cooling system has a direct impact on the engine control unit's operation and the temperature management strategy in modern BMW units. In 3 and 5 Series models, where extensive electronic systems work with the engine, maintaining proper thermal parameters is crucial for the stability of iDrive modules, controllers, and other onboard systems. You can read more about the impact of proper component maintenance on BMW electronics in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models using salvaged parts?.

Why choose a used OEM component

Choosing a used, original water hose is a reasonable compromise between costs and maintaining factory parameters. A salvaged component:

• maintains compliance with BMW technical documentation,
• allows for cost savings compared to a new part,
• provides better fitment than many low-budget replacements.

For workshops and individual users, this means faster repair completion and a lower risk of installation issues. You can read about how the availability of used OEM parts affects vehicle downtime in the guide Availability of car parts off-the-shelf vs. repair time – how do used OEM parts shorten workshop stays?.