Suction Pipe BMW F90 M5 F91 M8 Evaporator Compressor Line Hose R1234yf 7854429

Suction Pipe BMW F90 M5 F91 M8 Evaporator Compressor Line Hose R1234yf is an original air conditioning system component from the Cooling system pipes and hoses group, designed for the F90 generation BMW 5 Series sports sedan. This used pipe allows for a technically sound and cost-effective repair of the section connecting the compressor to the evaporator, while maintaining the factory refrigerant routing geometry. It is a solution for users who expect solid quality and compliance with the manufacturer's design.

Specifications and technical data

• SKU: 7854429
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7854429
• Substitutable numbers: 7854429, 64537854429, KZ
• Category: Coolant Hoses

The role of the evaporator compressor pipe in the cooling and air conditioning system

The evaporator compressor pipe in the BMW F90 M5 is responsible for the safe transport of refrigerant between key system components. A properly selected part from this group ensures:

• stable refrigerant pressure in the circuit,
• proper connection tightness,
• routing of the pipe in the engine bay that complies with the manufacturer's design.

Thanks to this, the air conditioning and cooling system operates in a predictable manner, which translates into thermal comfort in the interior and protection of components against overheating.

Why choose an original BMW pipe

The original evaporator compressor pipe for BMW has been designed specifically for the engine bay geometry of the M5 F90 version, taking into account high thermal and pressure loads. In practice, this means:

• precise fit to factory brackets and mounts,
• maintaining the correct bending radius, which reduces the risk of material stress,
• compatibility with original connectors and seals.

Choosing a part from the same design family as the factory component minimizes the risk of installation problems and leaks after repair.

Used condition – an informed service choice

The presented pipe belongs to the group of used parts, which allows for a significant reduction in repair costs while maintaining a design consistent with the BMW project. This solution is particularly beneficial when:

• only a section of the pipe has been damaged, while the remaining system components are functional,
• quick availability of factory-origin parts is important,
• the priority is to maintain the original installation routing in the vehicle.

A used evaporator compressor pipe allows for restoring proper refrigerant circulation without the need to invest in a full set of new components.

Compatibility, identification, and part group

The element belongs to the Cooling system pipes and hoses category, which facilitates its identification in the context of the vehicle's entire thermal system. In practice, this means that the pipe works with other components responsible for transporting refrigerant within the air conditioning and engine cooling system. Thanks to the presence of the OEM part number and interchangeable numbers (visible in the technical specification), precise verification of compatibility with a specific BMW F90 M5 configuration is possible.

Expanding knowledge and selecting other elements

During periods of high temperatures, it is particularly important to maintain the efficiency of the entire cooling and air conditioning system. If you want to better understand how summer conditions affect the operation of these components and how to reasonably use used parts, such as pipes, radiators, or fans, read the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.

If you are planning a comprehensive repair or upgrade of the cooling and air conditioning area in your BMW and need other elements from the same group, such as fluid pipes, return hoses, or sections connecting to the radiator, check the available parts in the BMW cooling system pipes and hoses category.