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Porsche Air Conditioning Retrofit
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
The Electrocooler 'half system' allows existing AC cars to use our electric compressor and modern condenser with the existing evaporator blower mounted in the smuggler's box.
Fits Porsche 911 models 1965 to 1989 with factory/dealer fitted AC.
If your factory or dealer fitted evaporator / blower is in good condition but your compressor and hoses are tired, this is the kit for you. The kit contains compressor and mounts for fitment ahead of the fuel tank. The new condenser can be fitted in place of the washer bottle on 74 onwards cars. Early cars can mount the condenser in the rear wheel well. Complete new set of hoses and all wiring are included.
This is a 'half system' AC system to be used with the factory evaporator/blower.
- All Electric. All modern components
- Weighs around 22lbs (10 kg)
- Retains factory evaporator / blower
- Fits in front luggage bay
- Lightweight narrow hose set weighing under 4lbs (1.5kg)
- Easy Install. Non-damaging bolt-in installation
- Clutter Free. Uses existing air vents to deliver cool air
- Simple to Use. Controlled by a single ‘smart button’
- Energy Efficient. Uses less than 1 HP of engine power
- Kits available to fit 911s from 1965 to 1989 (please check for fitment before purchase)
For Installation Guide CLICK HERE
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Electric Air Conditioning Kit with Dual Condensers
Transform the comfort and usability of your classic air-cooled Porsche 911 with this advanced Electric Air Conditioning Kit featuring a Dual Condenser System. Designed specifically for Porsche 911 models from 1974 to 1989, this revolutionary Electrocooler system completely re-engineers the factory air conditioning and ventilation setup using modern electric technology, significantly improving cooling performance, reliability and energy efficiency.
Unlike traditional belt-driven systems, the Electrocooler uses a compact electric compressor and modern HVAC components to deliver powerful cooling while dramatically reducing engine load. The result is a more comfortable cabin, improved performance and a significantly enhanced driving experience, even in extreme climates.
This dual condenser version is specifically designed for owners operating their vehicles in high-temperature and high-humidity environments, making it ideal for regions such as Florida, Singapore, the Middle East, Southern Europe and Australia.
A Complete Redesign of the Porsche 911 Air Conditioning
System
The original air conditioning system fitted to many classic
Porsche 911 models is often considered one of the weakest aspects of the car.
Limited cooling performance, ageing components and inefficient airflow can make
driving uncomfortable in warmer conditions.
The Electrocooler system addresses these shortcomings by
delivering:
- Modern electric air conditioning technology
- Enhanced cooling performance
- Improved fresh air ventilation
- Upgraded heating air distribution
- Simplified operation
- Reduced engine load
- Improved cabin comfor
- Greater reliability
The result is a climate control system worthy of a modern sports car while maintaining the character of your classic Porsche.
Why Upgrade to Electric Air Conditioning?
Traditional engine-driven compressors consume significant
engine power and add complexity to the engine bay.
The Electrocooler system offers numerous advantages:
Reduced Engine Load
The system typically uses less than 1 horsepower, helping
preserve engine performance while improving fuel efficiency.
Lightweight Design
The complete system weighs approximately
- 35 lbs (16kg) complete system weight
- Lightweight narrow-wall hoses weighing under 4 lbs (1.5kg)
Modern Components
Every major component has been redesigned using modern
technology for improved performance and reliability.
Cleaner Installation
The system fits within the front luggage compartment and
utilises the factory fresh air vents to distribute cooled air, maintaining a
clean and uncluttered cabin appearance.
Simple Operation
Control is managed through a single intelligent control
button, providing straightforward operation and a factory-style user
experience.
Dual Condenser System for Extreme Climates
This version incorporates a second condenser to maximise
cooling performance in demanding environments.
Benefits include:
- Increased cooling capacity
- Improved refrigerant efficiency
- Better performance in high humidity
- Enhanced cooling during heavy traffic
- Superior cabin comfort in temperatures exceeding 35°C
- Reduced system workload
The additional condenser can be mounted within the left rear wing area, either ahead of or behind the rear wheel depending on installation requirements.
For vehicles operating in particularly hot climates, the dual condenser configuration is strongly recommended.
Installation Configuration
The system has been engineered specifically for Porsche 911
models and adapts to both left and right-hand drive vehicles.
Left-Hand Drive Vehicles
Compressor
mounted within the smugglers box
Right-Hand Drive Vehicles
Compressor
mounted ahead of the fuel tank
This approach ensures efficient packaging while maintaining practicality and serviceability.
Included Components
The kit contains:
- Electric A/C compressor and control ECU.
- Condenser, fan and shroud assembly.
- Replacement blower unit, housing modern fan and evaporator.
- Lightweight narrow wall hose set with custom fittings.
- ECU wiring loom and sundries.
We don’t provide:
- 60mm / 40mm air ducting (we recommend genuine Webasto aluminium/paper hose)
- Duct clips. A selection of 60mm and 40mm is advisable. We like the Porsche ones
- Rubber grommets (for routing hoses and wiring)
- ‘Oetiker’ crimp pliers / pincers
- Replacement washer bottle but we do have a kit available for the Boxster/996 bottle.
Tools and sundries needed:
- Good quality set of allen keys
- Standard wrenches and socket set.
- Side cutters
- Small selection of male and female spade terminals (6.8mm)
- Crimp tool for above
- Selection of cable ties ( 300mm) for general use
- Hose cutters
- Sharp knife (for cutting duct)
More information found in the attached PDF and YouTube video
Generation 2 Blower System
All kits now include the latest Generation 2 blower assembly
featuring:
- Modern double-cage blower design
- Increased airflow capacity
- Improved efficiency
- Reduced noise levels
- Enhanced cooling distribution
The upgraded blower also improves fresh air circulation and heating performance.
Important Installation Information
Although the physical installation can be completed by
competent enthusiasts, final commissioning should always be undertaken by a
qualified air conditioning engineer.
Professional installation is recommended for:
- Hose crimping
- Pressure testing
- Refrigerant filling Leak testing
- System commissioning
For safety and reliability reasons, refrigerant charging using consumer R134a refill cans is not recommended.
Additional Recommendations
Because the electric compressor requires a healthy
electrical supply, upgrading the original alternator is recommended for the
majority of installations.
This helps ensure:
- Reliable system operation
- Stable voltage supply
- Improved electrical performance
- Long-term system reliability
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Electric Air Conditioning Kit with Single Condenser
Transform the comfort and usability of your classic air-cooled Porsche 911 with this advanced Electric Air Conditioning Kit featuring a Single Condenser System. Designed specifically for Porsche 911 models from 1974 to 1989, this revolutionary Electrocooler system completely re-engineers the factory air conditioning and ventilation setup using modern electric technology, significantly improving cooling performance, reliability and energy efficiency.
Unlike traditional belt-driven systems, the Electrocooler uses a compact electric compressor and modern HVAC components to deliver powerful cooling while dramatically reducing engine load. The result is a more comfortable cabin, improved performance and a significantly enhanced driving experience, even in extreme climates.
This dual condenser version is specifically designed for owners operating their vehicles in high-temperature and high-humidity environments, making it ideal for regions such as Florida, Singapore, the Middle East, Southern Europe and Australia.
A Complete Redesign of the Porsche 911 Air Conditioning System
The original air conditioning system fitted to many classic Porsche 911 models is often considered one of the weakest aspects of the car. Limited cooling performance, ageing components and inefficient airflow can make driving uncomfortable in warmer conditions.
The Electrocooler system addresses these shortcomings by delivering:
- Modern electric air conditioning technology
- Enhanced cooling performance
- Improved fresh air ventilation
- Upgraded heating air distribution
- Simplified operation
- Reduced engine load
- Improved cabin comfor
- Greater reliability
The result is a climate control system worthy of a modern sports car while maintaining the character of your classic Porsche.
Why Upgrade to Electric Air Conditioning?
Traditional engine-driven compressors consume significant engine power and add complexity to the engine bay.
The Electrocooler system offers numerous advantages:
Reduced Engine Load
The system typically uses less than 1 horsepower, helping preserve engine performance while improving fuel efficiency.
Lightweight Design
The complete system weighs approximately
- 35lbs (16kg) complete system weight
- Lightweight narrow-wall hoses weighing under 4lbs (1.5kg)
Modern Components
Every major component has been redesigned using modern technology for improved performance and reliability.
Cleaner Installation
The system fits within the front luggage compartment and utilises the factory fresh air vents to distribute cooled air, maintaining a clean and uncluttered cabin appearance.
Simple Operation
Control is managed through a single intelligent control button, providing straightforward operation and a factory-style user experience.
Dual Condenser System for Extreme Climates
This version incorporates a second condenser to maximise cooling performance in demanding environments.
Benefits include:
- Increased cooling capacity
- Improved refrigerant efficiency
- Better performance in high humidity
- Enhanced cooling during heavy traffic
- Superior cabin comfort in temperatures exceeding 35°C
- Reduced system workload
The additional condenser can be mounted within the left rear wing area, either ahead of or behind the rear wheel depending on installation requirements.
For vehicles operating in particularly hot climates, the dual condenser configuration is strongly recommended.
Installation Configuration
The system has been engineered specifically for Porsche 911 models and adapts to both left and right-hand drive vehicles.
Left-Hand Drive Vehicles
Compressor mounted within the smugglers box
Right-Hand Drive Vehicles
Compressor mounted ahead of the fuel tank
This approach ensures efficient packaging while maintaining practicality and serviceability.
Included Components
The kit contains:
- Electric A/C compressor and control ECU.
- Condenser, fan and shroud assembly.
- Replacement blower unit, housing modern fan and evaporator.
- Lightweight narrow wall hose set with custom fittings.
- ECU wiring loom and sundries.
We don’t provide:
- 60mm / 40mm air ducting (we recommend genuine Webasto aluminium/paper hose)
- Duct clips. A selection of 60mm and 40mm is advisable. We like the Porsche ones
- Rubber grommets (for routing hoses and wiring)
- ‘Oetiker’ crimp pliers / pincers
- Replacement washer bottle but we do have a kit available for the Boxster/996 bottle.
Tools and sundries needed:
- Good quality set of allen keys
- Standard wrenches and socket set.
- Side cutters
- Small selection of male and female spade terminals (6.8mm)Crimp tool for above
- Selection of cable ties ( 300mm) for general use
- Hose cutters
- Sharp knife (for cutting duct)
More information found in the attached PDF and YouTube video
Generation 2 Blower System
All kits now include the latest Generation 2 blower assembly featuring:
- Modern double-cage blower design
- Increased airflow capacity
- Improved efficiency
- Reduced noise levels
- Enhanced cooling distribution
The upgraded blower also improves fresh air circulation and heating performance.
Important Installation Information
Although the physical installation can be completed by competent enthusiasts, final commissioning should always be undertaken by a qualified air conditioning engineer.
Professional installation is recommended for:
- Hose crimping
- Pressure testing
- Refrigerant filling
- Leak testing
- System commissioning
For safety and reliability reasons, refrigerant charging using consumer R134a refill cans is not recommended.
Additional Recommendations
Because the electric compressor requires a healthy electrical supply, upgrading the original alternator is recommended for the majority of installations.
This helps ensure:
- Reliable system operation
- Stable voltage supply
- Improved electrical performance
- Long-term system reliability
For Installation Guide CLICK HERE
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits:
Porsche 911 F-Series - late 1969–1973
Porsche 911 G-Series - 1974–1989
Our new, Gen 2 fresh air blower assembly for Porsche 911 models is designed to replace the ancient and noisy original fresh air blower.
As with all Classic Retrofit products, it fits straight into the car without modification, using the original electrical plug and Bowden cable work.
It is true plug and play.
Internally, the blower unit uses a modern double-cage fan which can move more air than the original. The real game changer is that it incorporates a modern parallel flow evaporator.
This allows a 911 with our A/C to get rid of the clunky separate A/C blower in the smuggler's box (LHD) or behind the passenger footboard (RHD). Two blowers are integrated into one modern unit, saving weight and space.
You can pair this blower with a traditional A/C system or if you want to join the electric A/C revolution, try our complete electric kit.
- Replaces original fresh air blower
- Double cage fan
- Parallel flow evaporator
- Recirculation function
- Plug and play electrical connector and Bowden cable
- Weighs 5.0 kg
For Installation Guide CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90157302100
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
-
air conditioner, evaporator housing, single parts 911 1978-83 813-05
-
air conditioner evaporator housing complete with air duct not for (USA) 911 1970-73 813-50
-
Air conditioner, evaporator, evaporator housing, accessories 911 1974-77 813-30
-
evaporator housing, air conditioner - complete with air duct - for 911 E/S/T 1969 onwards 813-75
-
air conditioner, evaporator, evaporator housing, accessories 911 TURBO 1975-77 813-30
Porsche Air Conditioning Retrofit
Air conditioning retrofit options for Porsche models bring cabin comfort into focus without losing the character of an air-cooled classic. Explore electric systems, blower upgrades and supporting components for suitable classic 911, 964 and 993 applications. Design911's Porsche specialists can help you assess the right approach for your model and installation.
Why does Porsche air conditioning retrofit matter?
A retrofit can add cooling where none was fitted or update an existing installation. Electric systems replace the belt-driven compressor with an electrically powered unit, while compatible blower and evaporator upgrades address cabin airflow. The appropriate condenser arrangement and a healthy electrical supply are important considerations; an alternator upgrade is recommended for many earlier 911 installations.
- Make warm-weather journeys more comfortable in your classic Porsche.
- Choose a complete conversion or individual components to suit the project.
- Consider integrated blower and evaporator designs where space is limited.
- Match condenser capacity and electrical requirements to the intended installation.
Common retrofit options and components
Single-condenser electric systems
Model-specific classic 911 kits combine an electric compressor with a blower and evaporator assembly, delivering cooled air through the standard fresh-air vents. Single-condenser configurations suit less demanding heat and humidity conditions.
- Check model year and compressor mounting requirements.
- Review alternator capacity before installation.
Dual-condenser electric systems
A second condenser provides additional heat-rejection capacity for hotter, more humid conditions. Its mounting position and hose routing need to suit the particular Porsche and any existing oil-cooler installation.
- Consider climate and intended use.
- Check space for both condensers and fans.
964 and 993 conversion systems
Dedicated 964 and 993 conversions retain the original blower unit and fans while using an electric compressor. Check evaporator requirements separately, as the referenced system excludes the factory evaporator.
- Confirm existing air conditioning equipment.
- Check integration with the original climate controls.
Integrated blower and evaporator upgrades
A replacement fresh-air blower can combine a double-cage fan, parallel-flow evaporator and recirculation function in one assembly. Compatible installations can replace the separate air conditioning blower, helping simplify the layout.
- Check electrical connector and cable compatibility.
- Confirm suitability for electric or conventional air conditioning.
Electric compressor and ECU modules
A 12V electric scroll compressor and ECU provide the basis for a bespoke installation, not a complete air conditioning system. A compatible evaporator, condenser, drier and plumbing must be specified separately.
- Suitable for carefully planned custom projects.
- Check control setup and electrical supply requirements.
Condenser and fan assemblies
A condenser and fan assembly supports refrigerant heat rejection and can form part of a second-condenser upgrade. Additional hose and fittings are needed to complete the refrigerant circuit.
- Confirm mounting clearance and airflow.
- Check the required connecting hardware.
Choosing original-specification or retrofit parts
Genuine Porsche parts provide the factory reference for original equipment. OE Match parts follow original-equipment specification, often from manufacturers supplying Porsche, while quality aftermarket options include replacement components and purpose-designed retrofit systems. Choose according to whether you are maintaining the original arrangement, restoring it or planning a conversion; these approaches are not automatically interchangeable.
When should you consider an air conditioning retrofit?
Consider a retrofit when cabin comfort no longer suits how you use your Porsche, or when a restoration provides an opportunity to rethink the cooling installation. Start by defining the scope of the project rather than assuming every component needs replacing.
- You want to add cabin cooling to a Porsche without air conditioning.
- You are reviewing an existing system that no longer meets your warm-weather needs.
- You are planning regular use in hotter or more humid conditions.
- You want to assess an integrated blower arrangement during a restoration.
- Your bespoke build requires an alternative to an engine-driven compressor.
Before choosing parts, confirm model compatibility, kit contents, mounting space, electrical capacity and control integration. Plan refrigerant-system assembly and commissioning with a suitably qualified specialist.
Explore Porsche air conditioning retrofit with Design911
Compare complete conversion systems with individual retrofit components, keeping your Porsche's existing equipment and intended use in mind. For help defining the project, speak to Design911's team for advice from people who know these models.