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Air cooling parts

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DISPLAYING 1 to 16 (of 52 products)
1 2 3 4
99311071250/1KITA
Product Information
Product Information
Intake manifolds & rubber sleeves Set of 6 . 


oematch

Fits:
Porsche 993 C2 / C4 1994-98
Porsche 993 Turbo

Click 'Zoom in' for large parts diagram.
Diagram ref no 9 & 12.



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99311071250
99311071250
96411068703
99311068300
99311068782
99311071201
96411068701
99311068751

The product you are viewing cross references to these numbers
99311071250/1KIT
Product Information
Product Information
Intake manifolds Set of 6 

oematch

Fits:
Porsche 993 C2 / C4 1994-98
Porsche 993 Turbo

Click 'Zoom in' for large parts diagram.
Diagram ref no 12.

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99311071250
99311071250

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96411068604/1KIT
Product Information
Product Information
Manifold rubber seal. SET OF 2.
Replacement  rubber intake sleeve / connecting hose manufactured to original Porsche specifications. This direct-fit replacement restores airtight sealing between the air flow meter and intake manifold, preventing leaks and ensuring precise fuel metering for smooth, powerful performance.

Fits:
Porsche 964 C2 / C4 1989 - 1994
Porsche 964 Carrera RS
Porsche 993 C2 / C4 1994 - 1995
Porsche 993 Turbo 1994 - 1998

This product supersedes Porsche's old part numbers:
- 96411068601
- 96411068603

Diagram ref no 5.

Material: Heat- and oil-resistant rubber compound
Function: Seals air distributor to intake runners; prevents vacuum leaks
Position: Between intake plenum and cylinder head manifolds
Replacement Interval: During intake removal, rebuild, or when cracks are visible
Benefits: Restores proper airflow, stable idle, and factory performance consistency

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96411068604
96411068604
96411068603
96411068601

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99310640202
Product Information
Product Information
Air duct.

porsche

Fits:
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 4

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99310640202
99310640202

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96410605131
Product Information
Product Information
Alternator bearing fan blade

Fits:
Porsche 964 C2 / C4 / Turbo 1989-94
Porsche 993 C2 / C4 / C2S / C4S / Turbo 1995-98

Diagram ref no 25

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96410605131
96410605130
96410605131

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Special Order item
99310650950
Product Information
Product Information
Alternator belt pulley half - inner. 

Fits:
Porsche 993 Turbo 3.6L 1995-98
Porsche 993 Turbo S 3.6L 1997-98

Diagram ref. 10. 

NOTE: Unlike Carrera models, Turbo models do not use two identical pulley halves. Instead, they require an inner half—this product—and a separate outer half. When you add this item to your basket, you’ll be prompted to add the outer half as well.

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99310650950
99310650950

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99310651052
Product Information
Product Information
Alternator belt pulley half - outer. 

Fits:
Porsche 993 Turbo 3.6L 1995-98
Porsche 993 Turbo S 3.6L 1997-98

Diagram ref. 10. 

NOTE: Unlike Carrera models, Turbo models do not use two identical pulley halves. Instead, they require an outer half—this product—and a separate inner half. When you add this item to your basket, you’ll be prompted to add the inner half as well.

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99310651052
99310651050
99310651052

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Special Order item
99310625150
Product Information
Product Information
Alternator fan / impeller housing strap.
Genuine Porsche alternator fan / impeller housing strap for 911 (993). Ensures secure fit, proper alignment, and reliable cooling performance.

Fit:
Porsche 993 Turbo 1994 - 1997

Diagram ref no 6

Location: Engine bay, securing the alternator fan / impeller housing  

What this product does:
•  Holds the alternator fan and impeller housing firmly in place
•  Ensures proper cooling airflow through the engine
•  Maintains alignment of the fan assembly to avoid vibration or damage

Over time, the original strap may stretch, corrode, or lose strength, reducing its ability to hold the housing firmly in place. A failing strap can cause the fan assembly to loosen, resulting in noise, vibration, or poor cooling performance. Replacing it restores secure fitment and proper tension, ensuring your Porsche’s cooling system continues to operate efficiently.

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99310625150
99310625150

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99310625150/1
Product Information
Product Information
Alternator fan / impeller housing strap.
Direct replacement alternator fan and impeller housing strap for Porsche 911 (993) models. This strap secures the alternator fan and housing assembly in place, ensuring proper alignment and reliable cooling performance. Built to OE specifications, it matches the fit and strength of the original part while offering excellent durability.

Fit:
Porsche 993 turbo - 1994 to 1997

Diagram ref no 6

Location: Engine bay, securing the alternator fan / impeller housing  

What this product does:
•  Holds the alternator fan and impeller housing firmly in place
•  Ensures proper cooling airflow through the engine
•  Maintains alignment of the fan assembly to avoid vibration or damage

With age, the original strap can weaken, stretch, or corrode, making it less effective at securing the housing. If it fails, the fan assembly may loosen, leading to unwanted noise, vibration, or reduced cooling efficiency. Replacing the strap ensures a secure fit and proper tension, keeping your Porsche’s cooling system performing as intended.

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99310625150
99310625150

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96410601522
Product Information
Product Information
Alternator Fan / Impeller.

Fits:
Porsche 964 Turbo 1989-94
Porsche 993 Turbo 1994-98

Old Porsche part number:
- 96410601521

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96410601522
96410601521
96410601522

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96410601531
Product Information
Product Information
Alternator Fan / Impeller.

Fits:
Porsche 964 C2 / C4 1989-94
Porsche 993 C2 / C4 / C2S / C4S 1994-98
Special Order item
96410601540
Product Information
Product Information
Alternator Fan / Impeller.

Fit:
Porsche 964 Carrera RS 1991-93
Porsche 993 Carrera RS 1995-96

Diagram ref no 9

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96410601540
96410601540
96410601575
96410601576

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Special Order item
93060304101
Product Information
Product Information
Alternator Fan Housing Extension.

 
porsche

Fits:
Porsche 964 1989-94
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 19.



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93060304101
93060304101

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Special Order item
99310605180
Product Information
Product Information
Alternator Fan Wheel Hub.


porsche

Fits:
Porsche 964 Carrera RS 3.6L 1992
Porsche 993 Carrera RS 1995-96

Click 'zoom in' for large parts diagram.
Diagram ref no 25



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99310605180
99310605180

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Special Order item
99321103401
Product Information
Product Information
Connection Piece engine bay heater fan. 

Fits:
Porsche 993 - 1994 to 1998

Diagram ref no 14



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99321103401
99321103401

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Special Order item
99310640300
Product Information
Product Information
Engine air duct for engine fan.

porsche

Fits:
*** for varioram cars only engine M64.21 / 22 / 23 / 24
Porsche 993 C2 / C2S 1994-98
Porsche 993 C4 / C4S 1995-98
Porsche 993 Turbo 1995-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 5

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99310640300
99310640300

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DISPLAYING 1 to 16 (of 52 products)
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About Air cooling parts

Air Cooling Parts – Engine Efficiency and Temperature Control for Porsche Vehicles

Air cooling parts are essential components designed to regulate engine temperature, ensuring your Porsche runs efficiently, safely, and at peak performance. These components manage airflow and heat dissipation within air-cooled engines, preventing overheating and maintaining consistent operating conditions.

At Design911, we offer a wide selection of genuine and high-quality air cooling parts for Porsche models including classic air-cooled 911s, 964, 993, and more. Our range includes fan assemblies, shrouds, ducts, pulleys, housings, and cooling tins, all precision-engineered for exact fitment and reliable thermal management. Every part is built to the same high standards as the original factory components, ensuring lasting performance and authenticity.

What Do Air Cooling Parts Do?

Air cooling components work together to keep the engine’s operating temperature stable by directing airflow across critical areas. Key functions include:

  • Cooling the engine cylinders and heads to prevent overheating.
  • Regulating airflow through fans, ducts, and shrouds.
  • Maintaining consistent engine performance under varying load and speed conditions.
  • Supporting mechanical efficiency and preventing thermal stress on components.

For Porsche’s legendary air-cooled engines, proper airflow and cooling performance are vital to achieving both longevity and smooth, balanced operation.

Why Do Air Cooling Parts Fail?

Over time, air cooling components can degrade due to exposure to heat, vibration, and environmental wear. Common failure causes include:

  • Cracked or warped shrouds and ducts from thermal stress.
  • Fan damage or imbalance caused by corrosion or debris.
  • Loose pulleys or belts reducing airflow efficiency.
  • Corroded or missing fasteners and mounts leading to rattling or misalignment.
  • Material fatigue from age or improper maintenance.

Symptoms of failure include higher-than-normal engine temperatures, noise from the cooling fan, or visible cracks and wear on housing parts.

Why Replace Faulty Air Cooling Parts?

A compromised cooling system can lead to overheating, reduced performance, or even engine failure. Replacing worn or damaged components ensures optimal air circulation and temperature regulation, protecting your engine’s reliability and value.

Benefits of replacement include:

  • Restored and efficient airflow across engine components.
  • Consistent operating temperatures and improved engine longevity.
  • Prevention of costly overheating-related damage.
  • Factory-spec fitment and manufacturer-quality materials.

All air cooling parts in this range are designed to meet or exceed exacting engineering standards, ensuring durability, precision, and confidence for both restoration projects and regular maintenance.

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