BMW F20 F21 F30 F31 LCI Refrigerant Pressure Line Double Pipe Hose 9337124

BMW F20 F21 F30 F31 LCI Refrigerant Pressure Line Double Pipe Hose is an original, double air conditioning line designed for the factory cabin cooling system in facelifted 1 and 3 Series models. Thanks to its double pipe hose construction, it ensures stable refrigerant routing and a leak-proof connection between system components, which translates into predictable air conditioning performance.

Specifications and technical data

• SKU: 9337124
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9337124
• Substitutable numbers: 9337124, 64539337124
• Category: A/C Hoses & Fittings

Purpose and function in the air conditioning system

This double pressure line is part of the Air conditioning lines, hoses and connectors group, responsible for transporting refrigerant at the appropriate pressure between key system components. A properly selected line allows for maintaining the correct operating parameters of the compressor, condenser, and other elements, reducing the risk of performance drops and leaks.

Original BMW manufacturing guarantees compatibility with the factory routing geometry in the engine bay, which facilitates installation and minimizes stress on connections and seals.

Construction and advantages of the original BMW line

The double construction of the pressure line ensures organized routing of two refrigerant lines in one assembly, which improves system clarity and facilitates service. The used ends and connectors are matched to the factory sockets in BMW F20, F21, F30, and F31 LCI models, allowing the component to work in the system without the need for modifications.

The main benefits of using this component include:

• factory fitment for facelifted BMW F-series air conditioning systems,
• stable refrigerant routing in two lines within a single assembly,
• preservation of flow and pressure parameters designed by the manufacturer,
• reduced risk of leaks at connections due to the correct geometry of the line.

Condition, origin, and installation aspects

The component comes from BMW as an original part, which means full compatibility with the factory air conditioning system design. As a used part, it is intended for users looking for a cost-effective solution while maintaining the original manufacturer's specifications, without the need to adapt aftermarket replacements.

The line is ready for installation in place of the factory component, using original mounting points and connectors. When replacing, it is recommended to use new seals and perform a leak test and proper system refrigerant charging to fully utilize the air conditioning system's capabilities.

Air conditioning system safety and diagnostics

A functional pressure line has a direct impact on the service life of the air conditioning compressor and the stability of operating pressures. Leaks, micro-cracks, or deformations of the lines can lead to refrigerant loss, dry compressor operation, and consequently, costly failures. Therefore, whenever working on the system, it is worth verifying the condition of the lines, connectors, and mounts.

To better understand the relationship between the condition of the lines and compressor durability, it is worth reading the guide: Air conditioning compressor – symptoms of failure, causes, and safe replacement. This will allow you to choose the right service strategy and avoid recurring faults.

OEM part selection and additional information

Choosing an original pressure line for the BMW F-series allows you to maintain the consistency of the entire air conditioning system with the manufacturer's design. As a result, operating parameters such as pressure, flow, and routing remain in line with factory assumptions, which translates into predictable air conditioning operation under various operating conditions.

If you are considering whether a used original part or a replacement is a better solution, the following practical guide may be helpful: 5 reasons why a used OEM part is a better choice than a replacement. You will find specific criteria there that will make it easier to make a decision when planning an air conditioning system repair.

If you are planning a comprehensive repair or upgrade of the air conditioning zone in your BMW and need other elements from the same group, such as low-pressure lines, flexible hoses, or service connectors, check the available parts in the BMW air conditioning lines, hoses and connectors category.