BMW 3 F30 LCI B48X Coolant Hose Pipe Electric Pump Coolant Feed Line 8644286

BMW 3 F30 LCI B48X Coolant Hose Pipe Electric Pump Coolant Feed Line is an original cooling system component, designed specifically for this facelifted 3 Series generation. Thanks to its factory-spec geometry and diameter, it ensures stable coolant flow between the electric pump and other components, supporting the safe operation of the engine. This solution is intended for users who expect precise fitment and predictable cooling system performance.

Specifications and technical data

• SKU: 8644286
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8644286
• Substitutable numbers: 8644286, 17128644286
• Category: Coolant Hoses

Purpose and function in the cooling system

This hose belongs to the Cooling system hoses and pipes category and is responsible for transporting coolant from the electric pump in the B48X engine of the BMW 3 F30 LCI. A correctly selected hose section is crucial for:

• maintaining proper coolant flow under various engine loads,
• stabilizing the engine's operating temperature,
• reducing the risk of overheating in both city and highway driving conditions,
• maintaining system integrity during pressure and temperature fluctuations.

The original design of the hose ensures compatibility with the factory routing in the engine bay, which facilitates installation and reduces stress on the pump ports and other components.

Construction and fitment for BMW 3 F30 LCI B48X

The coolant hose was developed by BMW with the specific architecture of the B48X engine and the cooling system of the 3 F30 LCI model in mind. This means that:

• the shape and length of the hose are adapted to the factory routing in the engine bay,
• the internal diameter is matched to the efficiency of the electric coolant pump,
• the used ends are compatible with original BMW ports and connectors,
• the hose material is adapted to work with coolants used in modern BMW gasoline engines.

As a result, this component can be used as a direct replacement for a worn or leaking hose without the need for any system modifications.

Benefits of using an original coolant hose

Using an original hose in the BMW 3 F30 LCI B48X cooling system provides a number of practical operational benefits:

• Factory fitment – no need for modifications, proper positioning relative to other components and covers.
• Stable cooling system operation – the hose is designed for the specific performance of the electric pump and engine characteristics.
• Reduced risk of leaks – properly selected ends and geometry minimize stress on connections.
• Better service predictability – the mechanic works with a component of known design and parameters.

This solution is particularly beneficial when replacing components after a pump failure, engine overheating, or during preventive cooling system maintenance.

Characteristics of the used component

The offered coolant hose is a second-hand component, sourced from dismantling. In practice, this means the ability to obtain factory BMW fitment at a lower cost compared to a new component. This type of part is a good choice in situations where:

• a quick and economical repair of the cooling system is necessary,
• compliance with the original installation is a priority,
• the car is used intensively and the cost-to-effect ratio is important.

Before installation, it is recommended to perform a standard check of the condition of the working surfaces, material flexibility, and connection tightness after installation in the vehicle.

Technical support and guide materials

When planning work on the cooling system, it is worth considering the impact of high temperatures on the efficiency of the entire system. Practical tips on operation and component selection can be found in the guide "Summer heat vs. cooling system: used radiators and fans as a guarantee of savings", which discusses, among other things, the importance of efficient coolant flow elements in protecting the engine.

If you are planning a comprehensive repair or upgrade of the cooling system area in your BMW and need other components from the same group, such as lines, hoses, or additional feed sections, check the available parts in the BMW cooling system hoses and pipes category.