Volkswagen Polo Mk5 6R Air Conditioning Compressor A/C Unit Pump 1K0820859T

Visual condition of the part

The product shows signs of use visible in the photos.

The Volkswagen Polo Mk5 6R Air Conditioning Compressor is an original cabin cooling system component designed for vehicles with petrol engines. It ensures stable refrigerant compression, which translates to predictable air conditioning operation and thermal comfort during daily use.

Specifications and technical data

• SKU: 1K0820859T-1
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 1K0820859T
• Substitutable numbers: 1K0820859T, 1K0 820 859 T
• Fuel type: Petrol
• Category: A/C Compressors & Clutches

Purpose and Technical Characteristics

The air conditioning compressor for Volkswagen Polo Mk5 6R belongs to the category of air conditioning compressors and clutches, meaning it is responsible for generating the correct pressure in the A/C system and cooperating with the engine's accessory drive. The design is adapted for petrol-powered engines, ensuring that its operating parameters are matched to the rotational characteristics of such engines.

As an OEM-class component, the compressor is designed for factory mounting points and original pipe geometry, which facilitates installation and reduces the risk of fitment issues. After correct installation, the air conditioning system will maintain its factory-like operational quality, and the compressor will work with the vehicle's existing control system.

Construction and Operation in the Air Conditioning System

The air conditioning compressor in the Polo Mk5 6R is responsible for circulating the refrigerant throughout the entire circuit. Together with the condenser, evaporator, expansion valve, and receiver-drier, it forms a complete, closed system that maintains a stable temperature inside the vehicle.

• Stable Refrigerant Compression – ensures proper operating pressure under various engine load conditions.
• Cooperation with Compressor Clutch – enables engaging and disengaging the drive based on cooling demand.
• Adaptation to Petrol Systems – its operating characteristics are tuned to the typical rotational speeds of petrol engines.

This combination allows for consistent cabin cooling, minimizes power loss felt by the driver, and ensures proper interaction with the air conditioning control electronics.

Benefits of Using an Original Compressor

Choosing an original air conditioning compressor for the Polo Mk5 6R is a solution that technically and functionally surpasses random aftermarket replacements of unknown origin. This component has been specifically designed for the Volkswagen platform, which translates into a number of practical advantages:

• Factory Fitment – compatibility with original brackets, hoses, and engine accessories.
• Predictable Operating Parameters – the air conditioning system will maintain characteristics close to the factory configuration.
• Optimal Electronic Integration – correct operation of air conditioning controls without the need for system modifications.
• Powertrain Compatibility – the compressor is adapted to the loads generated by a petrol engine.

As a result, restoring air conditioning functionality after compressor replacement is a predictable process, and the risk of compatibility issues remains limited.

Condition, Application, and Part Selection

The offered compressor is part of the used components group, allowing for an economical repair of the air conditioning system while maintaining the original manufacturer's specifications. This solution is particularly beneficial for older Polo Mk5 6R models, where an optimal cost-to-functionality ratio is crucial.

Before installation, standard servicing procedures are recommended, such as checking system tightness, replacing the receiver-drier, and refilling with refrigerant according to the vehicle manufacturer's recommendations. Properly conducted installation and servicing will allow for full utilization of the compressor's potential and reduce the risk of premature wear.

Alternative Air Conditioning Compressors and Technical Knowledge

If you are looking for other air conditioning compressors and clutches for Volkswagen, check out the Volkswagen air conditioning compressors and clutches available in our store to select the part best suited to your specific engine version and year.

The choice of used, original components is also a common practice in the premium segment. More on the advantages of using such solutions – using another brand as an example – can be found in the article used parts for Mercedes – original dismantled parts, which discusses cost-effectiveness, selection, and operational safety.