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Air cooling parts

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DISPLAYING 1 to 16 (of 35 products)
1 2 3
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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Special Order item
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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Related, superseded, cross reference or alternative numbers for comparison.

96410605131
96410605130
96410605131

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Special Order item
96410626800
Product Information
Product Information
Alternator Belt Pulley Shim.
The Porsche Alternator Belt Pulley Shim is a genuine OEM spacer washer used in the alternator belt pulley assembly. Designed to fine-tune pulley alignment, this 0.5 mm shim ensures the alternator belt runs true, preventing misalignment, premature wear, and belt noise.
Sold Each.

Fits:
  • Porsche 964 (911) C2 1989-93
  • Porsche 964 (911) C4 1989-93

What This Product Does:

  • The shim adjusts the axial spacing (depth) of the alternator pulley relative to the housing or bearing so that the alternator belt alignment is correct.
  • It ensures the pulley is neither too far in nor too far out, thereby avoiding misalignment with the belt path, which could cause wear, noise, or belt slip.
  • Proper spacing is critical for belt tension, pulley alignment, and smooth operation of the alternator / drive belt.

Signs / Symptoms A New Shim May Be Needed:
  • There is belt misalignment — the belt rides off center or rubs on pulley edges or guides.
  • Unusual belt noise such as squealing or chirping, especially under load or at startup, which might indicate pulley or belt misalignment.
  • Excessive belt or pulley wear — uneven wear on belt ribs or pulley surfaces.
  • When installing a replacement alternator / pulley you find the original shim is missing, damaged, or of unknown thickness.
  • You notice vibration or play in the alternator pulley assembly, possibly due to improper spacing.

Why Replacement Matters:
  • Belt Misalignment – Without correct spacing, the alternator belt may track incorrectly, slip, or ride off the pulley edges.
  • Premature Wear – Misaligned belts put stress on both the belt and pulley, causing them to wear out faster.
  • Noise and Vibration – A missing or damaged shim often results in squealing, chirping, or vibration under load.
  • Charging Issues – A poorly aligned belt can slip, reducing alternator efficiency and risking undercharging of the battery.
  • Avoidable Damage – Replacing a small shim prevents more expensive damage to the alternator, pulleys, and belt system.

Diagram Ref No 15



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96410626800
96410626800

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Special Order item
96410625120
Product Information
Product Information
Alternator fan / impeller housing strap.

Fit:
Porsche 911 1965-89
Porsche 911 (930) Turbo 1975-89
Porsche 964 Turbo 3.3L / Turbo 3.6L 1991-94
Porsche 914-6 1970-76

Diagram ref no 2

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96410625120
96410625120
90110625102
90110625103

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96410625120/1
Product Information
Product Information
Alternator fan / impeller housing strap.  Stainless steel 

Fit:
Porsche 911 1965-89
Porsche 911 (930) Turbo 1975-89
Porsche 964 Turbo 3.3L / Turbo 3.6L 1991-94
Porsche 914-6 1970-76

Diagram ref no 2

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96410625120
96410625120
90110625102
90110625103

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Special Order item
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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Special Order item
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

The product you are viewing cross references to these numbers
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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Related, superseded, cross reference or alternative numbers for comparison.

93060304101
93060304101

The product you are viewing cross references to these numbers
96410601701/1
Product Information
Product Information
Alternator fan housing strap.

Fits:
Porsche 964 Carrera 2 / 4 - 1989 to 1994
Porsche 964 Carrera RS - 1992

Diagram ref no 6

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96410601701
96410601701

The product you are viewing cross references to these numbers
Special Order item
96410601701
Product Information
Product Information
Alternator fan housing strap.

Fits:
Porsche 964 Carrera 2 / 4 1989-94
Porsche 964 Carrera RS 1992

Diagram ref no 6

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96410601701
96410601701

The product you are viewing cross references to these numbers
Special Order item
96410666703
Product Information
Product Information
Alternator fan housing.

Fits:
Porsche 964 Carrera 2 / 4 1989-94
Porsche 964 Carrera RS 1992

Diagram ref no 5

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Related, superseded, cross reference or alternative numbers for comparison.

96410666703
96410666703
96410666702

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Special Order item
99310605180
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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
96410626601
Product Information
Product Information
Engine Air Duct. Porsche 964 / 993
porsche

Fits:
Porsche 964 C2 / C4 / RS 1989-94
Porsche 993 1994-98
Special Order item
96410640302
Product Information
Product Information
Engine air duct.

porsche

Fits:
Pre-vario ram cars only
Porsche 964 (1989 to 1994)
Porsche 993 Carrera RS Clubsport (1995 to 1996; with engine code M64.20)

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

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Related, superseded, cross reference or alternative numbers for comparison.

96410640302
96410640301
96410640302

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96410640302/1
Product Information
Product Information
Engine air duct.

oematch

Fits:
Pre-vario ram cars only
Porsche 964 (1989 to 1994)
Porsche 993 Carrera RS Clubsport (1995 to 1996; with engine code M64.20)

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

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96410640302
96410640301
96410640302

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DISPLAYING 1 to 16 (of 35 products)
1 2 3
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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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