Compressors
- 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
Fits:
Porsche 928 1978-91
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Diagram ref no 12
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Related, superseded, cross reference or alternative numbers for comparison.
92812612303
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- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 928 1987-95
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Diagram ref no 18
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Related, superseded, cross reference or alternative numbers for comparison.
92810211804
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- 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
Fits as the main air conditioning compressor in the heating & A/C system, typically mounted on the front of the engine with belt drive. Built to original equipment standards, this compressor delivers the correct displacement and operating pressure for the Porsche 928 climate system, ensuring reliable refrigerant circulation, stable pressures and consistent cabin cooling even in demanding conditions.
Fits:
Porsche 928 1980 - 1992*
* Will not fit 4.5L 928 years 1978-79
This compressor draws refrigerant from the evaporator, compresses it, and pumps it through the condenser so the system can expel heat and deliver cool, conditioned air to the interior. By maintaining the correct refrigerant flow and pressure, it ensures the A/C system can cool the cabin quickly and keep temperatures stable, supporting both comfort and demisting/defrost functions.
A worn or failing A/C compressor can cause poor or no cooling, excessive noise, seized internals, and contamination of the entire A/C system. Left unchecked, failure can damage other components like the condenser, expansion valve or receiver-drier. Replacing the compressor with an OE-match unit restores proper refrigerant circulation, protects the rest of the climate system, and brings back the comfort and refinement expected from a Porsche GT car - especially important on long trips and in warm climates.
When to replace
Consider replacing compressor if:
• The A/C no longer blows cold air or cooling is very weak.
• You hear grinding, rattling or squealing noises from the compressor area.
• There are visible oil/refrigerant leaks from the compressor body or shaft seal.
• The compressor clutch fails to engage, or cycles abnormally.
• The system has suffered an internal compressor failure (metal contamination).
• You’re performing a full A/C system restoration on a classic 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 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
Fits:
Porsche 928 1987-92
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92812611300
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- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
Restore smooth, reliable cooling in your Porsche with this OE Match air-conditioning compressor. Designed to meet original Porsche specifications, this high-quality replacement delivers factory-level performance, efficiency, and durability for your classic Porsche 928. Manufactured to the same form, fit, and function as the genuine part, this compressor ensures consistent refrigerant flow, quiet operation, and excellent long-term reliability. It installs directly with no modifications required, making it the ideal solution for restoring your air-conditioning system to original condition.
Fits:
Porsche 928 1987 - 1992
Diagram ref no 1
Why & When to Replace:
• A/C not cooling properly or blowing warm air
• Compressor clutch not engaging or producing noise
• Refrigerant leaks or visible oil traces on the compressor
• During A/C system overhaul or refrigerant conversion service
Replacing your worn compressor with an OE Match unit ensures reliable cooling, improved efficiency, and extended system life — preserving comfort and performance in your Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92812611300
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.
