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Your Vehicle
Porsche // 996 (911) (1997-2005) // 996 C2 3.4L 1997-08/01
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Air conditioning (Air Con) evaporator and blower motor set. Porsche 964 / 993 - AIRCONKIT18.1
AIRCONKIT18.1
Vehicle Group
- 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
Information
Air conditioning (Air Con) evaporator and blower motor set
incl. Expansion valve and o-ring seals.
This comprehensive air conditioning (A/C) system service kit bundles key HVAC components required to restore or upgrade the A/C performance in classic Porsche 911 (964 / 993) models. It includes the OE Match evaporator core, blower motors, expansion valve, and genuine O-ring seals necessary for correct installation and leak-free refrigerant performance.
Fits:
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram Ref No 5, 34, 35, 37 and 38.
This A/C service set is a combination of essential climate control components engineered to ensure your Porsche’s air conditioning system delivers reliable, cold airflow and maintains proper refrigerant flow throughout the system. The kit is ideal for A/C system rebuilds, evaporator replacement jobs, or when multiple HVAC components show wear due to age, moisture exposure, or refrigerant system fatigue.
Kit Includes:
• OE Match A/C Evaporator – OE ref no 96457390100
• OE Match A/C Blower Motor – OE ref no 96457201501
• OE Match A/C Blower Motor – OE ref no 96457201601
• OE Match A/C Expansion Valve – OE ref no 92857312305
• O-Ring Seals – OE ref no 99970743441 and 99970725141
This kit is intended for use within the air conditioning system - specifically the evaporator chamber, refrigerant metering, and blower airflow portions of the HVAC assembly.
The A/C evaporator (Part No. 96457390100) cools the cabin air by absorbing heat from incoming air passing through the HVAC system into the A/C refrigerant circuit. As refrigerant enters the evaporator, it expands and removes heat - providing cold, conditioned air for the cabin.
The blower motors (96457201501 & 96457201601) circulate air across the evaporator core and into the cabin through the ventilation ducts. Reliable blower operation is essential for efficient A/C performance and passenger comfort.
The expansion valve (92857312305) precisely meters refrigerant flow into the evaporator, ensuring the correct pressure and temperature for optimal cooling. An effective expansion valve prevents evaporator freeze-up and reduces strain on the A/C compressor.
High-quality O-ring seals (99970743441 and 99970725141) guarantee leak-free connections between A/C components, maintaining proper refrigerant pressure and system integrity.
Over time, A/C evaporators can develop internal corrosion, refrigerant leaks, or blockages. Age-worn blower motors fail to deliver sufficient airflow, and expansion valves can become clogged or lose metering precision. Faulty O-rings degrade and allow refrigerant to escape. This leads to:
• Weak cabin cooling
• Unstable A/C pressure
• Blower noise or failure
• Higher compressor load
• Reduced HVAC efficiency
Replacing these components with OE Match quality parts and genuine Porsche O-rings ensures correct fit, proper refrigerant sealing, and long-lasting air-conditioning performance.
Recommended replacements if you notice:
• Diminished cooling capacity or warm air from vents
• Weak or inconsistent blower airflow
• Refrigerant leaks or low system pressure
• Excessive blower noise
• System not reaching cold set temperature
• During A/C system overhaul or major service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
AIRCONKIT18.1
The product you are viewing cross references to these numbers
incl. Expansion valve and o-ring seals.
This comprehensive air conditioning (A/C) system service kit bundles key HVAC components required to restore or upgrade the A/C performance in classic Porsche 911 (964 / 993) models. It includes the OE Match evaporator core, blower motors, expansion valve, and genuine O-ring seals necessary for correct installation and leak-free refrigerant performance.
Fits:
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram Ref No 5, 34, 35, 37 and 38.
This A/C service set is a combination of essential climate control components engineered to ensure your Porsche’s air conditioning system delivers reliable, cold airflow and maintains proper refrigerant flow throughout the system. The kit is ideal for A/C system rebuilds, evaporator replacement jobs, or when multiple HVAC components show wear due to age, moisture exposure, or refrigerant system fatigue.
Kit Includes:
• OE Match A/C Evaporator – OE ref no 96457390100
• OE Match A/C Blower Motor – OE ref no 96457201501
• OE Match A/C Blower Motor – OE ref no 96457201601
• OE Match A/C Expansion Valve – OE ref no 92857312305
• O-Ring Seals – OE ref no 99970743441 and 99970725141
This kit is intended for use within the air conditioning system - specifically the evaporator chamber, refrigerant metering, and blower airflow portions of the HVAC assembly.
The A/C evaporator (Part No. 96457390100) cools the cabin air by absorbing heat from incoming air passing through the HVAC system into the A/C refrigerant circuit. As refrigerant enters the evaporator, it expands and removes heat - providing cold, conditioned air for the cabin.
The blower motors (96457201501 & 96457201601) circulate air across the evaporator core and into the cabin through the ventilation ducts. Reliable blower operation is essential for efficient A/C performance and passenger comfort.
The expansion valve (92857312305) precisely meters refrigerant flow into the evaporator, ensuring the correct pressure and temperature for optimal cooling. An effective expansion valve prevents evaporator freeze-up and reduces strain on the A/C compressor.
High-quality O-ring seals (99970743441 and 99970725141) guarantee leak-free connections between A/C components, maintaining proper refrigerant pressure and system integrity.
Over time, A/C evaporators can develop internal corrosion, refrigerant leaks, or blockages. Age-worn blower motors fail to deliver sufficient airflow, and expansion valves can become clogged or lose metering precision. Faulty O-rings degrade and allow refrigerant to escape. This leads to:
• Weak cabin cooling
• Unstable A/C pressure
• Blower noise or failure
• Higher compressor load
• Reduced HVAC efficiency
Replacing these components with OE Match quality parts and genuine Porsche O-rings ensures correct fit, proper refrigerant sealing, and long-lasting air-conditioning performance.
Recommended replacements if you notice:
• Diminished cooling capacity or warm air from vents
• Weak or inconsistent blower airflow
• Refrigerant leaks or low system pressure
• Excessive blower noise
• System not reaching cold set temperature
• During A/C system overhaul or major service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
AIRCONKIT18.1
96457390100
96457201501
96457201601
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
1 x Air conditioning evaporator. Porsche 964 / 993 (96457390100/2)
Unit Price: £110.00
InStock
1 x Heater / aircon blower motor. Porsche 964 / 993 (96457201501/1)
Unit Price: £188.00
InStock
1 x Heater / aircon blower motor. Porsche 964 / 993 (96457201601/1)
Unit Price: £188.00
InStock
1 x Air con expansion valve. Porsche 928 1985-92 / 964 / 993 (92857312305/1)
Unit Price: £29.00
InStock
1 x Radiator air conditioning (air con) O-ring seal. Porsche 986 / 996 (99970743441/1)
Unit Price: £4.95
InStock
1 x O-Ring For Air Conditioning. Porsche Various Models (99970725141)
Unit Price: £3.50
InStock
Price: £523.45
In stock
Related products
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Air conditioning expansion valve
This precision valve regulates the flow of refrigerant into the evaporator, ensuring efficient cooling and stable climate control inside the vehicle. Manufactured to Porsche’s original equipment standards, the expansion valve provides the correct pressure control and refrigerant flow required for reliable air conditioning performance and optimal cabin comfort.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 987 Boxster 2005 - 2008
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2013
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Diagram ref no 4
The expansion valve meters and controls the amount of refrigerant entering the air conditioning evaporator. It reduces the pressure of the refrigerant as it enters the evaporator, allowing it to expand and cool rapidly. This process absorbs heat from the cabin air and produces the cold air delivered through the ventilation system.
The expansion valve works together with the compressor, condenser, and evaporator to maintain efficient cooling performance and balanced refrigerant pressure throughout the system.
Functions & Technical Role
• Refrigerant regulation: Controls the flow of refrigerant into the evaporator
• Pressure reduction: Converts high-pressure liquid refrigerant into a low-pressure mixture for cooling
• Temperature control: Maintains consistent cooling performance in the HVAC system
• System protection: Prevents excess refrigerant from entering the evaporator
• OEM precision: Designed to Porsche specifications for correct installation and reliable operation
Fitment / Position on Car
• Fitting position: Air conditioning system
• Location: Mounted next to the evaporator within the HVAC housing
• System: Climate control / refrigerant distribution system
The expansion valve operates under constant temperature changes and refrigerant pressure, and can wear or become blocked over time. A faulty valve may lead to:
• Weak or inconsistent air conditioning performance
• Evaporator icing or insufficient cooling
• Increased system pressure or compressor strain
• Noisy or inefficient HVAC operation
Replacing a worn valve with a genuine Porsche OE component restores proper refrigerant control and ensures the air conditioning system performs as designed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99657392901
The product you are viewing cross references to these numbers
This precision valve regulates the flow of refrigerant into the evaporator, ensuring efficient cooling and stable climate control inside the vehicle. Manufactured to Porsche’s original equipment standards, the expansion valve provides the correct pressure control and refrigerant flow required for reliable air conditioning performance and optimal cabin comfort.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 987 Boxster 2005 - 2008
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2013
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Diagram ref no 4
The expansion valve meters and controls the amount of refrigerant entering the air conditioning evaporator. It reduces the pressure of the refrigerant as it enters the evaporator, allowing it to expand and cool rapidly. This process absorbs heat from the cabin air and produces the cold air delivered through the ventilation system.
The expansion valve works together with the compressor, condenser, and evaporator to maintain efficient cooling performance and balanced refrigerant pressure throughout the system.
Functions & Technical Role
• Refrigerant regulation: Controls the flow of refrigerant into the evaporator
• Pressure reduction: Converts high-pressure liquid refrigerant into a low-pressure mixture for cooling
• Temperature control: Maintains consistent cooling performance in the HVAC system
• System protection: Prevents excess refrigerant from entering the evaporator
• OEM precision: Designed to Porsche specifications for correct installation and reliable operation
Fitment / Position on Car
• Fitting position: Air conditioning system
• Location: Mounted next to the evaporator within the HVAC housing
• System: Climate control / refrigerant distribution system
The expansion valve operates under constant temperature changes and refrigerant pressure, and can wear or become blocked over time. A faulty valve may lead to:
• Weak or inconsistent air conditioning performance
• Evaporator icing or insufficient cooling
• Increased system pressure or compressor strain
• Noisy or inefficient HVAC operation
Replacing a worn valve with a genuine Porsche OE component restores proper refrigerant control and ensures the air conditioning system performs as designed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99657392901
99657392900
99657392901
The product you are viewing cross references to these numbers
Price: £198.83
Orderable
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Air conditioning expansion valve
The expansion valve is located within the air conditioning evaporator housing and acts as a precision regulator for refrigerant flow. It reduces the pressure of the refrigerant before it enters the evaporator and controls the amount of refrigerant that passes through the system.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 987 Boxster 2005 - 2008
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2013
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Diagram ref no 4
This OE Match version matches the original Porsche specifications for size, mounting configuration and flow characteristics. This ensures correct refrigerant pressure regulation and compatibility with the A/C systems used in Porsche 986, 987, 996 and early 997 vehicles.
A properly functioning expansion valve is essential for maintaining consistent cooling performance and preventing irregular cabin temperatures.
The expansion valve controls refrigerant flow into the evaporator by adjusting pressure and volume according to system demand. This allows the refrigerant to expand and cool effectively, enabling the evaporator to remove heat from the cabin air.
If the valve fails or becomes restricted, the air conditioning system may lose cooling efficiency or produce inconsistent temperatures.
Function
• Refrigerant Flow Control: Regulates refrigerant entering the evaporator
• Pressure Regulation: Reduces refrigerant pressure for effective cooling
• Temperature Stability: Helps maintain consistent cabin temperature
• A/C Efficiency: Supports optimal operation of the air conditioning system
Expansion valves can wear or become clogged with debris over time. When the valve fails, refrigerant pressure may not be regulated correctly, leading to poor cooling performance or fluctuating cabin temperatures. Replacing a faulty expansion valve restores proper refrigerant flow and helps maintain efficient air conditioning operation.
When to Replace. Consider replacing the expansion valve if you notice:
• Weak or inconsistent air conditioning cooling
• Refrigerant pressure imbalance in the system
• A/C system repair requiring evaporator removal
• During air conditioning system overhaul or service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99657392901
The product you are viewing cross references to these numbers
The expansion valve is located within the air conditioning evaporator housing and acts as a precision regulator for refrigerant flow. It reduces the pressure of the refrigerant before it enters the evaporator and controls the amount of refrigerant that passes through the system.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 987 Boxster 2005 - 2008
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2013
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Diagram ref no 4
This OE Match version matches the original Porsche specifications for size, mounting configuration and flow characteristics. This ensures correct refrigerant pressure regulation and compatibility with the A/C systems used in Porsche 986, 987, 996 and early 997 vehicles.
A properly functioning expansion valve is essential for maintaining consistent cooling performance and preventing irregular cabin temperatures.
The expansion valve controls refrigerant flow into the evaporator by adjusting pressure and volume according to system demand. This allows the refrigerant to expand and cool effectively, enabling the evaporator to remove heat from the cabin air.
If the valve fails or becomes restricted, the air conditioning system may lose cooling efficiency or produce inconsistent temperatures.
Function
• Refrigerant Flow Control: Regulates refrigerant entering the evaporator
• Pressure Regulation: Reduces refrigerant pressure for effective cooling
• Temperature Stability: Helps maintain consistent cabin temperature
• A/C Efficiency: Supports optimal operation of the air conditioning system
Expansion valves can wear or become clogged with debris over time. When the valve fails, refrigerant pressure may not be regulated correctly, leading to poor cooling performance or fluctuating cabin temperatures. Replacing a faulty expansion valve restores proper refrigerant flow and helps maintain efficient air conditioning operation.
When to Replace. Consider replacing the expansion valve if you notice:
• Weak or inconsistent air conditioning cooling
• Refrigerant pressure imbalance in the system
• A/C system repair requiring evaporator removal
• During air conditioning system overhaul or service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99657392901
99657392900
99657392901
The product you are viewing cross references to these numbers
Price: £39.00
In stock