do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Fans & cowlings
- Porsche 928 4.5L 1978-82
Air Conditioning Condenser Fan Bonded Rubber Buffer
Sold each - 2 required per car
High-quality bonded rubber-metal buffer designed for
mounting the air conditioning condenser fan blower guard grille on Porsche 928
models, including early 1978–1979 variants.
Fits:
Porsche 928 4.5L 1978-79
This OEM-style rubber-metal mounting bush provides secure attachment of the condenser fan assembly while effectively absorbing vibration and reducing operational noise. It ensures the blower guard grille and fan components remain correctly aligned during operation.
Manufactured using a durable rubber-metal bonded construction, this component is engineered to withstand engine bay temperatures, vibration, and long-term mechanical stress while maintaining flexibility and structural integrity.
A direct replacement part, this condenser fan mounting buffer is essential for maintaining stable AC system operation and preventing component wear.
Key Features
• Direct replacement bonded rubber-metal buffer
• Suitable for Porsche 928 (including 1978–1979 models)
• Designed for AC condenser fan blower grille mounting
• Reduces vibration and operational noise
• Durable rubber-metal bonded construction
• OEM-style fit and function
Function and Purpose
This rubber buffer acts as a mounting support and vibration isolator for the air conditioning condenser fan assembly.
It helps to:
• Secure the condenser fan and blower grille assembly
• Reduce vibration transfer within the AC system
• Minimise noise during fan operation
• Protect surrounding components from stress and wear
Why Replace Your AC Condenser Fan Buffer
Over time, rubber-metal mounts degrade due to heat, vibration, and age.
Common issues include:
• Cracked or hardened rubber
• Reduced vibration damping performance
• Loose or unstable fan assembly
• Increased noise during AC operation
Replacing the buffer restores proper mounting stability and ensures efficient AC system performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970330500
The product you are viewing cross references to these numbers
Porsche Cooling Fans & Cowlings | Efficient Airflow & Reliable Thermal Management
Cooling fans and cowlings are vital to maintaining optimal engine and air conditioning system temperatures in your Porsche. The fan ensures steady airflow through the radiator and condenser, while the cowling (or shroud) directs that air efficiently to maximise cooling performance and prevent heat build-up. Together, they ensure stable engine operation and consistent climate control efficiency.
At Design911, we supply high-quality fans and cowlings engineered to meet or exceed original performance standards. Manufactured from durable, heat-resistant materials and designed for perfect fitment, our components deliver reliable airflow, improved cooling balance, and long-term durability under demanding conditions.
Whether you’re repairing a damaged shroud, upgrading your cooling system, or replacing a worn fan motor, our Porsche fans and cowlings guarantee the performance, efficiency, and dependability your vehicle deserves.
What Do Fans & Cowlings Do?
Fans and cowlings play a key role in both engine cooling and air conditioning efficiency.
Core Functions:
- The fan circulates air across the radiator and A/C condenser to regulate temperature.
- The cowling channels airflow for maximum cooling efficiency.
- Prevents overheating during low-speed or idle conditions.
- Maintains stable A/C performance by cooling refrigerant circuits.
- Supports balanced airflow for efficient heat exchange and comfort.
Without a properly functioning fan or cowling, heat builds up rapidly, leading to reduced A/C performance, engine overheating, or component damage.
Why Do Fans & Cowlings Fail or Degrade?
Fans and cowlings are constantly exposed to vibration, moisture, heat cycles, and debris — all of which can cause wear or mechanical failure over time.
Common Causes of Failure Include:
- Cracked cowling or shroud reducing airflow efficiency.
- Electric fan motor burnout or seized bearings.
- Damaged fan blades from debris impact.
- Corrosion or wear on connectors and wiring.
- Cooling inefficiency from blocked or bent fins.
When these components fail, symptoms include overheating, reduced A/C cooling, excessive fan noise, or warning lights triggered by rising temperature levels.
Why Replace or Upgrade
Your Porsche Fans & Cowlings?
Replacing worn or damaged cooling fans and cowlings ensures
efficient airflow and protects critical engine and A/C components. High-quality
replacements also improve cooling response, reliability, and noise reduction.
Key Benefits:
- Restores efficient airflow and temperature control.
- Prevents overheating and improves A/C cooling efficiency.
- Reduces noise and vibration for smoother operation.
- Enhances performance during high-load or low-speed conditions.
- Compatible with Porsche 911, Cayman, Boxster, Panamera, Macan, and Cayenne models.
- Ideal for preventative maintenance, restorations, or performance upgrades.
It’s recommended to replace both the fan and cowling together to ensure correct alignment and airflow performance.
Highlights
- Precision-engineered Porsche cooling fans and cowlings.
- Heat-resistant, durable construction for long service life.
- Direct-fit replacements for road and performance models.
- Optimised airflow for maximum cooling and A/C efficiency.
- Reduces overheating risk and improves thermal stability.
- Suitable for maintenance, repair, or system upgrades.
