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Engine air duct for engine fan. Porsche 993 - 99310640300
99310640300/1
Vehicle Group
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
Information
This OE Match engine air duct is a replacement cooling air guide fitted around the engine fan system. It is specifically intended for Porsche 993 Varioram applications and is designed to match the original-style fitment and function.
Fits:
*** for Varioram cars only engine M64.21 / 22 / 23 / 24
Porsche 993 C2 / C2S 1994 - 1998
Porsche 993 C4 / C4S 1995 - 1998
Porsche 993 Turbo 1995 - 1998
Diagram ref no 5
What This Product Does
The duct forms part of the air-cooled engine's airflow system, guiding air to the engine fan. Correct duct alignment helps maintain the intended airflow path around the cooling assembly.
Functions
- Channels air towards the engine cooling fan
- Supports the intended engine cooling airflow path
- Replaces a cracked, warped or missing original duct
- Helps prevent unwanted gaps around the fan ducting
Technical Details
- Brand: OE Match
- Reference number: 99310640300
- Application restriction: Varioram cars only
- Engine codes: M64.21 / 22 / 23 / 24
- Diagram reference: 105-05, item 5
Symptoms of Fault
- Visible cracking, warping or damage to the duct
- Gaps or poor alignment around the cooling fan assembly
- Rattling or vibration from loose ducting
- Hot air recirculation within the engine compartment
- Engine temperatures running higher than expected
Why Replacement Matters
A damaged or incorrectly seated duct can disrupt airflow through the air-cooled engine system. Replacing the affected component restores the ducting arrangement and helps the fan direct cooling air as intended. Inspect the surrounding fixings and adjacent ducting during installation.
FAQs
- Is this suitable for every Porsche 993?
No. This application is specified for the Varioram models and engine codes listed above. - When should the duct be replaced?
Replacement should be considered if the existing part is cracked, distorted, loose or missing. - Where is this part shown on the diagram?
It is identified as item 5 on diagram 105-05.
Related reference numbers
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99310640300
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Price: £32.50
Delayed delivery
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Vehicle Group
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Information
Alternator Fan Housing, Alloy.
The OE Match Alloy Alternator Fan Housing is a premium-quality replacement engine cooling component designed to securely mount the alternator and cooling fan while directing airflow across the air-cooled engine on compatible Porsche models. Manufactured to OE specifications for fit, strength and durability, this alloy fan housing restores the original cooling efficiency and appearance of the engine bay.
Fits:
Manufactured from high-quality cast aluminium alloy, the housing offers excellent structural rigidity, corrosion resistance and heat dissipation. Precision-machined mounting points ensure accurate alignment of the alternator and cooling fan, providing proper belt tracking and optimum airflow throughout the engine cooling system. It is ideal for restoration projects or replacing cracked, corroded or damaged original fan housings.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010600611
The product you are viewing cross references to these numbers
The OE Match Alloy Alternator Fan Housing is a premium-quality replacement engine cooling component designed to securely mount the alternator and cooling fan while directing airflow across the air-cooled engine on compatible Porsche models. Manufactured to OE specifications for fit, strength and durability, this alloy fan housing restores the original cooling efficiency and appearance of the engine bay.
Fits:
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Manufactured from high-quality cast aluminium alloy, the housing offers excellent structural rigidity, corrosion resistance and heat dissipation. Precision-machined mounting points ensure accurate alignment of the alternator and cooling fan, providing proper belt tracking and optimum airflow throughout the engine cooling system. It is ideal for restoration projects or replacing cracked, corroded or damaged original fan housings.
What This Product Does:
- Supports and positions the alternator and engine cooling fan.
- Directs cooling airflow over the engine cylinders and cylinder heads.
- Maintains correct fan and alternator alignment.
- Ensures proper drive belt tracking.
- Helps maximise engine cooling efficiency.
- Provides secure mounting for associated engine components.
- Restores the original appearance of the engine compartment.
- Forms an essential part of the air-cooled engine cooling system.
Symptoms Of Wear Or Failure:
- Cracks or fractures in the housing.
- Corrosion or oxidisation of the alloy.
- Misaligned cooling fan or alternator.
- Excessive fan belt wear or belt misalignment.
- Fan rubbing against the housing.
- Increased engine operating temperatures.
- Unusual noises from the fan assembly.
- Loose mounting points or damaged fixing threads.
- Visible impact damage.
- Poor engine bay appearance during restoration.
Why Replacement Matters:
- The alternator fan housing is exposed to constant engine vibration, high operating temperatures and repeated thermal expansion and contraction. Over time, the alloy housing can develop cracks, corrosion or damaged mounting points, affecting the alignment and efficiency of the engine cooling fan and alternator.
- A damaged fan housing can reduce cooling airflow, increase fan belt wear and place additional strain on the alternator and cooling fan assembly. In air-cooled Porsche engines, reduced cooling efficiency can contribute to elevated engine temperatures, which may affect reliability and long-term engine durability.
- Replacing a worn or damaged alternator fan housing restores the correct positioning of the cooling fan and alternator, ensuring efficient engine cooling and reliable accessory drive operation. The OE Match replacement provides factory-style fitment, high-quality cast alloy construction and exceptional durability, helping preserve the performance, reliability and authentic appearance of your Porsche.
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Price: £545.00
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Vehicle Group
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Information
Impeller Blade Fan Centre Support .
The OE Match Impeller Blade Fan Centre Support is a premium-quality replacement engine cooling component designed to securely support and locate the engine cooling fan impeller on compatible Porsche models. Manufactured to OE specifications for fit, strength and durability, this centre support maintains correct fan alignment, ensuring smooth operation and efficient airflow through the engine cooling system.
Fits:
Manufactured from high-strength, precision-machined aluminium alloy, the fan centre support is engineered to withstand high rotational speeds, engine vibration and continual thermal cycling. Its accurately machined mounting surfaces and balanced construction ensure the cooling fan remains correctly centred, reducing vibration and promoting long-term reliability. Designed for direct OE-style installation, it integrates seamlessly with the original cooling fan assembly.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010601201
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The OE Match Impeller Blade Fan Centre Support is a premium-quality replacement engine cooling component designed to securely support and locate the engine cooling fan impeller on compatible Porsche models. Manufactured to OE specifications for fit, strength and durability, this centre support maintains correct fan alignment, ensuring smooth operation and efficient airflow through the engine cooling system.
Fits:
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Manufactured from high-strength, precision-machined aluminium alloy, the fan centre support is engineered to withstand high rotational speeds, engine vibration and continual thermal cycling. Its accurately machined mounting surfaces and balanced construction ensure the cooling fan remains correctly centred, reducing vibration and promoting long-term reliability. Designed for direct OE-style installation, it integrates seamlessly with the original cooling fan assembly.
What This Product Does:
- Supports and locates the engine cooling fan impeller.
- Maintains correct fan alignment during operation.
- Ensures smooth, balanced fan rotation.
- Helps maximise airflow through the engine cooling system.
- Reduces vibration within the cooling fan assembly.
- Supports efficient engine temperature regulation.
- Restores factory cooling system performance.
- Forms an essential part of the engine cooling fan assembly.
Symptoms Of Wear Or Failure:
- Excessive vibration from the engine cooling fan.
- Whining or rumbling noises from the fan assembly.
- Fan wobble during operation.
- Premature wear of the fan bearings.
- Misalignment of the cooling fan.
- Reduced cooling efficiency due to improper fan positioning.
- Visible cracks or damage to the support.
- Corrosion affecting the mounting surfaces.
- Difficulty securing the cooling fan correctly.
- Accelerated wear of surrounding cooling system components.
Why Replacement Matters:
- The impeller blade fan centre support is subjected to continuous high-speed rotation, engine vibration and significant temperature fluctuations. Over time, wear, fatigue or corrosion can affect its ability to maintain the precise alignment required for smooth fan operation.
- A damaged or worn centre support can cause the cooling fan to run out of balance, creating excessive vibration, bearing wear and reduced airflow through the engine cooling system. If left unresolved, this can contribute to reduced cooling performance, increased stress on adjacent components and the potential for overheating.
- Replacing a worn or damaged fan centre support restores the correct positioning and stability of the engine cooling fan. The OE Match Impeller Blade Fan Centre Support is manufactured to OE standards using premium-quality materials, providing factory-style fitment, exceptional strength and long-lasting durability to help maintain efficient engine cooling and dependable Porsche performance.
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Vehicle Group
- 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)
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 914 (1970-1976)
Information
Alternator fan / impeller housing strap, Stainless steel.
This alternator fan / impeller housing strap is a high-quality replacement component engineered in stainless steel. This strap secures the alternator cooling fan or impeller housing in the engine bay of classic Porsche air-cooled vehicles, providing enhanced corrosion resistance and durability.
Fit:
Porsche 911 1965 - 1989
Porsche 911 (930) Turbo 1975 - 1989
Porsche 964 Turbo 3.3L / Turbo 3.6L 1991 - 1994
Porsche 914-6 1970 - 1976
Diagram ref no 2
This OE Match strap secures the alternator cooling fan or impeller housing to the engine block or accessory mount, maintaining correct belt alignment, reducing vibration, and preserving the designed airflow path for the cooling system. Its robust stainless construction helps ensure that cooling performance and accessory alignment remain stable through many heating/cooling cycles and varying environmental conditions.
Installed between the fan housing and the engine accessory bracket, the stainless steel strap:
• Provides a rigid mounting point for the alternator fan/impeller housing
• Maintains accurate belt and pulley alignment
• Reduces the risk of strap deformation, corrosion, or fatigue
• Helps ensure consistent airflow distribution for engine cooling
The factory strap is steel and, over time, can be prone to corrosion, bending, fatigue, or surface degradation due to heat cycling and environmental exposure. These issues can lead to fan misalignment, belt wear, and reduced cooling performance. Upgrading to an OE Match stainless steel strap enhances reliability, resists corrosion, and improves longevity - ideal for engines used in daily driving, classic car tours, or restoration builds where long-term durability is important.
When to replace:
• Original strap shows corrosion, rust, or fatigue cracks
• Fan housing shows signs of misalignment or vibration
• During alternator, cooling fan, or accessory belt service
• When restoring or rebuilding the engine assembly
• Preventive upgrade to improve reliability
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410625120
The product you are viewing cross references to these numbers
This alternator fan / impeller housing strap is a high-quality replacement component engineered in stainless steel. This strap secures the alternator cooling fan or impeller housing in the engine bay of classic Porsche air-cooled vehicles, providing enhanced corrosion resistance and durability.
Fit:
Porsche 911 1965 - 1989
Porsche 911 (930) Turbo 1975 - 1989
Porsche 964 Turbo 3.3L / Turbo 3.6L 1991 - 1994
Porsche 914-6 1970 - 1976
Diagram ref no 2
This OE Match strap secures the alternator cooling fan or impeller housing to the engine block or accessory mount, maintaining correct belt alignment, reducing vibration, and preserving the designed airflow path for the cooling system. Its robust stainless construction helps ensure that cooling performance and accessory alignment remain stable through many heating/cooling cycles and varying environmental conditions.
Installed between the fan housing and the engine accessory bracket, the stainless steel strap:
• Provides a rigid mounting point for the alternator fan/impeller housing
• Maintains accurate belt and pulley alignment
• Reduces the risk of strap deformation, corrosion, or fatigue
• Helps ensure consistent airflow distribution for engine cooling
The factory strap is steel and, over time, can be prone to corrosion, bending, fatigue, or surface degradation due to heat cycling and environmental exposure. These issues can lead to fan misalignment, belt wear, and reduced cooling performance. Upgrading to an OE Match stainless steel strap enhances reliability, resists corrosion, and improves longevity - ideal for engines used in daily driving, classic car tours, or restoration builds where long-term durability is important.
When to replace:
• Original strap shows corrosion, rust, or fatigue cracks
• Fan housing shows signs of misalignment or vibration
• During alternator, cooling fan, or accessory belt service
• When restoring or rebuilding the engine assembly
• Preventive upgrade to improve reliability
Related reference numbers
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96410625120
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Price: £32.60
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Vehicle Group
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Information
Air deflector alternator.
Fits:
Porsche 911 3.2 Carrera - 1984 to 1989
Porsche 911 turbo - 1984 to 1989
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Fits:
Porsche 911 3.2 Carrera - 1984 to 1989
Porsche 911 turbo - 1984 to 1989
The air deflector serves as an air baffle and provides optimal cooling of the cylinders. Bolts to the back of the alternator.
Diagram ref no 10
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