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Compressors
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 928 1987-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810211804
The product you are viewing cross references to these numbers
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Air Conditioning Compressor
Restore factory air conditioning performance and driving
comfort with this OE Match Air Conditioning Compressor for the
Porsche 928 model range from 1980 to 1992. As the central component of the
vehicle's climate control system, the compressor is responsible for circulating
and compressing refrigerant, enabling the system to produce cold air and
maintain comfortable cabin temperatures.
Fits:
- Porsche 928 4.5L 1980-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
The Porsche 928 was designed as a high-performance grand touring car capable of covering long distances in comfort. A properly functioning air conditioning system is an essential part of that experience, particularly during summer driving and long-distance touring.
Manufactured to OE Match specifications, this compressor provides dependable performance, direct-fit installation and reliable operation for both maintenance and restoration projects.
What Does the Air Conditioning Compressor Do?
The air conditioning compressor is often described as the heart of the AC system.
Its primary functions include:
- Compressing refrigerant gas
- Circulating refrigerant through the AC system
- Creating the pressure differential required for cooling
- Supporting efficient cabin temperature control
- Enabling cold air production
- Assisting dehumidification of cabin air
- Maintaining climate control performance
Without a functioning compressor, the air conditioning system cannot effectively cool the vehicle interior.
Why Do Air Conditioning Compressors Fail?
Air conditioning compressors contain moving internal components that are subjected to heat, pressure and continuous operation.
Common causes of failure include:
- Internal bearing wear
- Compressor clutch failure
- Refrigerant loss Lack of lubrication
- Seal deterioration Internal contamination
- Corrosion from prolonged inactivity
- General age-related wear
On older vehicles such as the Porsche 928, years of service and periods of inactivity can accelerate compressor deterioration.
Symptoms of a Failing Air Conditioning Compressor
Common warning signs include:
- Air conditioning blowing warm air
- Reduced cooling performance
- Compressor clutch failing to engage
- Grinding, squealing or rattling noises
- Refrigerant leaks
- Intermittent AC operation
- Excessive vibration
- Unusual engine bay noises when AC is activated
These symptoms should be investigated promptly to prevent further damage to the air conditioning system.
When Should the Compressor Be Replaced?
Replacement is recommended when:
- The compressor has seized
- Internal compressor damage is identified
- The clutch assembly has failed
- Cooling performance cannot be restored through servicing
- Significant refrigerant leaks are present
- Performing a complete AC system overhaul
- Restoring a long-term stored vehicle
- Contamination has entered the system
Many Porsche specialists recommend replacing the receiver dryer and inspecting system seals whenever a compressor is replaced.
Why Replacement Matters
A worn or failing compressor can affect every component within the air conditioning system.
Benefits of replacement include:
- Restored cooling performance
- Improved cabin comfort
- Reduced compressor noise
- Better climate control efficiency
- Improved refrigerant circulation
- Increased system reliability
- Reduced strain on supporting components
- Restoration of factory AC performance
A properly functioning AC system enhances both comfort and the value of your Porsche 928.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92812601071
The product you are viewing cross references to these numbers
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 928 GTS 1993-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92812611301
The product you are viewing cross references to these numbers
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 928 GTS 1993-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92812611301
The product you are viewing cross references to these numbers
Porsche Air Conditioning Compressors | Reliable Cooling Power & System Performance
The air conditioning compressor is the heart of your Porsche’s A/C system, responsible for circulating refrigerant and maintaining pressure to deliver cold air efficiently. It compresses the refrigerant gas and sends it through the condenser, ensuring consistent cooling performance and comfort in all driving conditions.
At Design911, we supply high-quality air conditioning compressors engineered to match or exceed original standards. Manufactured from premium materials with precision-balanced internals, our compressors provide smooth, quiet operation and long-term reliability.
Whether you’re replacing a failed unit or restoring your Porsche’s climate system, our compressors ensure efficient cooling, consistent pressure regulation, and dependable operation for years to come.
What Does an Air Conditioning Compressor Do?
The compressor is a key component that maintains the flow of refrigerant through your Porsche’s A/C system.
Core Functions:
- Compresses and circulates refrigerant gas through the condenser and evaporator.
- Maintains correct pressure levels for efficient cooling.
- Ensures steady refrigerant flow for consistent cabin temperature.
- Supports climate control functions and defrost systems.
- Provides smooth, quiet operation under all driving conditions.
Without a functioning compressor, the air conditioning system cannot cool effectively, leading to warm air output and reduced performance.
Why Do Air Conditioning Compressors Fail or Wear Out?
Over time, compressors are subject to extreme pressure, heat, and mechanical wear, which can lead to internal or external failures.
Common Causes of Failure Include:
- Loss of lubrication due to refrigerant leaks.
- Contamination or moisture in the A/C system.
- Seized bearings or worn clutch assemblies.
- Electrical faults in the compressor clutch or relay.
- Excessive pressure from blocked condensers or expansion valves.
When a compressor fails, symptoms may include warm air from vents, unusual noises, oil or refrigerant leaks, or the A/C system failing to engage.
Why Replace Your Porsche Air Conditioning Compressor?
Replacing a worn or faulty compressor restores proper cooling efficiency, prevents further system damage, and ensures reliable temperature control.
Key Benefits:
- Restores efficient and consistent air conditioning performance.
- Prevents system contamination and costly compressor failure.
- Reduces noise, vibration, and harshness (NVH).
- Improves refrigerant circulation and cooling response.
- Compatible with Porsche 911, Cayman, Boxster, Panamera, Macan, and Cayenne models.
- Ideal for A/C rebuilds, maintenance, or climate control restorations.
When replacing the compressor, it’s recommended to also replace the receiver-drier and flush the system to remove contaminants for optimal performance.
Highlights
- Precision-engineered Porsche air conditioning compressors.
- High-efficiency performance with smooth, quiet operation.
- Designed for reliability under high-pressure conditions.
- Suitable for both R134a and R1234yf refrigerants (depending on model).
- Perfect for Porsche A/C servicing, repairs, or full system restoration.
- Direct-fit replacements for Porsche road and performance vehicles.
