BMW 1 3 Series F20 F21 F30 F31 LCI Pressure Hose Compressor Condenser 9337128

BMW 1 Series F20/F21 and 3 Series F30/F31 LCI (facelift) Compressor-to-Condenser Pressure Hose is an original component of the air conditioning system, belonging to the category Air Conditioning Hoses, Pipes, and Connectors. Designed by BMW, it ensures proper refrigerant flow between the compressor and the condenser, contributing to stable air conditioning operation and correct pressure distribution within the system. A used OEM component is a sensible choice for drivers seeking a proven, factory-standard solution at an attractive price.

Specifications and technical data

• SKU: 9337128
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9337128
• Substitutable numbers: 64539337128, 9337128, AS
• Category: A/C Hoses & Fittings

Purpose and Model Fitment for BMW Models

The offered pressure hose is designed for air conditioning systems in BMW 1 Series F20/F21 and 3 Series F30/F31 LCI (facelift) models. This means that the connection geometry, hose length, and routing have been factory-adjusted for the engine bays of these generations, facilitating installation and reducing the risk of leaks due to improper fitment.

Thanks to the use of original BMW design, the hose maintains appropriate stiffness and flexibility at critical points, which is essential for operation under high refrigerant pressure and for vibrations transmitted from the engine.

Construction and Role in the Air Conditioning System

The pressure hose connecting the air conditioning compressor to the condenser operates in the most stressed part of the refrigerant circuit. It is responsible for safely conveying the compressed, hot refrigerant from the compressor to the condenser, where it is cooled. The proper construction of this component is crucial for:

• maintaining the correct operating pressure in the system,
• reducing compression energy losses,
• stable operation of the expansion valve and evaporator,
• maintaining seal integrity under varying temperatures and loads.

Original BMW manufacturing promotes the preservation of proper flow cross-section and resistance to corrosion and material fatigue, which is particularly important in areas exposed to road salt, moisture, and temperature fluctuations.

Benefits of Using an Original BMW Hose

Using a factory pressure hose in a BMW air conditioning system offers a range of practical service and operational benefits:

• Full Compatibility with the Air Conditioning System – precisely matched connections, correct hose routing, and compatibility with factory mounting points.
• Stable Operating Parameters – the hose is designed for the specific operating pressures and temperatures used in BMW systems.
• Reduced Risk of Leaks – no need for modifications, cutting, or custom end fabrication, which minimizes the risk of refrigerant leaks.
• Economical Repair – a used OEM part allows for restoring air conditioning functionality without the cost of a new component.

Condition, Verification, and Installation

This component is from a disassembly and is offered as a used BMW air conditioning pressure hose. Such parts should be inspected for leaks, the condition of the spigots and threads, and any signs of corrosion on the metal sections before reinstallation. Installation is recommended at a specialized air conditioning service center or a workshop familiar with BMW systems, following these procedures:

• correct tightening torque for connections,
• replacement of O-ring seals with new ones,
• vacuuming and refilling the system with the appropriate refrigerant.

Used Air Conditioning Components and Savings

Choosing original, used air conditioning components is a proven method to reduce service costs while maintaining factory-quality manufacturing. A similar approach is discussed in more detail in our guide on premium disassembled parts, where we use Mercedes as an example to discuss air conditioning compressors and other comfort equipment – you can find more information in the article Used Mercedes Parts – Original Disassembled Components.

Other BMW Air Conditioning Hoses, Pipes, and Connectors

If you are also looking for other BMW Air Conditioning Hoses, Pipes, and Connectors, check out our dedicated offer: BMW Air Conditioning Hoses, Pipes, and Connectors. This will allow you to easily assemble a complete set of components necessary for comprehensive servicing of the air conditioning system in your BMW.