Air con evaporators & expansion valves
Fits:
Vehicles With Air-Conditioning
Porsche 928 1993-95
Porsche 964 1993-94
Porsche 968 1993-95
Porsche 993 1994-98
Diagram ref. 37.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92857331100
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928GTS 5.4L 1992-95
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12 Month Warranty
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Fits:
For cars with Air con
Porsche 944 1985-91
Porsche 968 >>1992
Click 'Zoom in' for large parts diagram.
Diagram Ref No 19
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94457321101
The product you are viewing cross references to these numbers
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 944 1985-91
Porsche 968 >>1992
Click 'Zoom in' for large parts diagram
Diagram ref no 20
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94457320100
The product you are viewing cross references to these numbers
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
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12 Month Warranty
Worldwide Delivery
Porsche Air Conditioning Evaporators & Expansion Valves | Efficient Climate Control & Cooling Precision
The air conditioning evaporator and expansion valve work hand-in-hand to regulate your Porsche’s cabin temperature and cooling performance. The evaporator absorbs heat from the interior air, while the expansion valve controls refrigerant flow and pressure — ensuring optimal cooling efficiency and consistent climate control in all conditions.
At Design911, we supply premium-grade air conditioning evaporators and expansion valves engineered to match or surpass original performance standards. Each component is built from corrosion-resistant aluminium and precision-calibrated materials for maximum reliability, refrigerant control, and long-lasting performance.
Whether you’re restoring your Porsche’s A/C system or repairing poor cooling output, our evaporators and expansion valves guarantee dependable operation and comfort on every drive.
What Do Air Con Evaporators & Expansion Valves Do?
These two critical components form the heart of your Porsche’s A/C cooling system.
Core Functions:
- Evaporator: Cools the cabin by absorbing heat as the refrigerant evaporates.
- Expansion Valve:
Regulates the refrigerant entering the evaporator, maintaining correct
pressure and temperature.
- Ensures steady, efficient cooling in all operating conditions.
- Prevents compressor overload and system freezing.
- Maintains optimal refrigerant balance for comfort and performance.
Why Do Air Con Evaporators & Expansion Valves Fail or Degrade?
These parts operate under constant temperature and pressure fluctuations, making them vulnerable to wear, corrosion, and contamination over time.
Common Causes of Failure Include:
- Corrosion or cracking of the evaporator core.
- Blockage or sticking in the expansion valve from debris.
- Moisture contamination leading to ice build-up inside the system.
- Refrigerant leaks reducing cooling efficiency.
- Age-related deterioration of seals, fins, or fittings.
When these components fail, you may notice weak cooling, fluctuating cabin temperatures, hissing noises, or A/C system fault codes.
Why Replace Your Porsche Air Con Evaporator & Expansion Valve?
Replacing a worn or leaking evaporator and expansion valve restores the A/C system’s ability to maintain stable, efficient cooling. It also prevents costly compressor damage and protects the system from moisture and pressure-related failures.
Key Benefits:
- Restores cold, consistent cabin air flow.
- Prevents refrigerant loss and internal contamination.
- Improves system efficiency and compressor protection.
- Maintains correct refrigerant pressure and flow rate.
- Designed for Porsche 911, Cayman, Boxster, Panamera, Macan, and classic models.
- Ideal for A/C servicing, rebuilds, or performance restoration.
Regular A/C servicing and replacement of worn components ensure long-term comfort, reliability, and system protection.
Highlights
- High-efficiency Porsche A/C evaporators and expansion valves.
- Corrosion-resistant aluminium cores for long-term reliability.
- Precision-engineered for accurate refrigerant flow control.
- Direct-fit designs for Porsche road and performance models.
- Perfect for repairs, restorations, or preventative maintenance.
- Improves cooling performance and system longevity.
