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- 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 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
Fits:
Porsche 911 - 1970 to 1973
Porsche 911 2.7 MFI - 1974 to 1977
Porsche 911 turbo - 1975 to 1977
Porsche 914-6
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 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110603300
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 914 (1970-1976)
The air deflector serves as an air baffle and provides optimal cooling of the cylinders. Bolts to the back of the alternator.
Fits:
Porsche 911 - 1975 to 1977
Porsche 911 SC - 1978 to 1983
Diagram ref no 10
Mounted on the rear of the alternator or alternator hub, bolting into or adjacent to the fan housing / ventilation shroud.
What it does:
• Guides airflow from the cooling fan over the alternator and engine to maintain proper cooling
• Extends or positions the alternator hub correctly so pulleys are aligned and belt tension is correct
• Helps ensure consistent air circulation in the engine cooling system
Over time, deflectors or hub extensions can become warped, cracked, or corroded, compromising airflow and misaligning pulleys. A damaged deflector may lead to poor alternator cooling, reduced alternator lifespan, or belt misalignment. Replacing restores correct spacing, airflow direction, and ensures reliable alternator performance under all conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110603305
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)
- Porsche 914 (1970-1976)
Fits:
Porsche 911 - 1972 to 1989
Porsche 914-6 - 1970 to 1976
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110640601
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)
- Porsche 914 (1970-1976)
Fits:
Porsche 911 1972-89
Porsche 914 1970-76
Diagram ref no. 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110640601
The product you are viewing cross references to these numbers
- 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)
The alternator fan / impeller housing strap secures the cooling fan assembly to the engine structure, keeping it correctly positioned and stable during engine run-up, vibration, and thermal cycling.
Fits:
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
The fan/impeller housing is a critical component of the air-cooled Porsche engine’s cooling system - ensuring airflow over the heads and cylinders - so a secure mounting strap helps maintain proper belt tension, consistent fan alignment, and dependable cooling performance.
Installed between the fan housing and its anchor point on the engine case or accessories bracket, this strap absorbs and distributes load from the fan’s rotational forces, engine vibration, and belt tension. The use of titanium dramatically improves resistance to fatigue and stress versus stock steel, helping reduce the chance of strap deformation or failure over time while contributing to overall engine compartment weight reduction.
The strap’s titanium alloy also provides higher corrosion resistance - especially beneficial for cars operated in damp or coastal environments where galvanic corrosion can affect standard hardware.
The stock steel fan strap experiences continuous load from belt tension, fan rotation, and thermal expansion. Over time, steel straps can stretch, fatigue, or crack, affecting fan alignment and potentially leading to belt slippage, reduced cooling airflow, or accelerated wear on pulleys. Upgrading to a titanium strap improves structural integrity, reduces recurring maintenance, and enhances the overall robustness of the cooling system - particularly in performance or high-stress driving environments.
When to replace:
• Original strap shows corrosion, cracks, or deformation
• During fan or alternator service
• As part of engine rebuild or restoration project
• Upgrading to performance materials for enhanced durability
• When reducing rotating mass and engine compartment weight
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410625120T
The product you are viewing cross references to these numbers
- 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)
Genuine Porsche Original Equipment (OE) alternator fan / impeller housing strap. It is a factory-engineered mounting bracket that secures the alternator cooling fan (or impeller housing) to the engine, ensuring proper alignment, stability, and airflow within the cooling and charging subsystem of classic Porsche air-cooled engines.
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
The alternator fan / impeller housing strap holds the fan assembly in correct alignment with the engine’s accessory drive system. By securing the fan housing, it ensures proper belt tension, efficient cooling airflow, reliable alternator operation, and accurate interaction with other engine accessories. Its structural role helps minimize vibration, reduces belt misalignment, and contributes to consistent engine cooling performance.
Function:
Installed in the engine bay between the alternator fan housing and a fixed mounting point on the engine block or accessory bracket, this OE strap:
• Provides rigid support for the alternator cooling fan assembly
• Maintains precise belt alignment for the fan pulley and accessory drive
• Helps resist engine vibration and torque loads
• Contributes to efficient engine cooling airflow.
An original fan strap that is bent, corroded, or fatigued can cause belt misalignment, fan wobble, excessive vibration, or premature wear on pulleys and accessories. Because the alternator cooling fan plays a vital role in air-cooled engine temperature control and charging system reliability, a secure and correctly aligned fan assembly is essential. Replacing a damaged or worn strap with a Genuine Porsche OE part ensures factory-correct support, preserves cooling efficiency, and helps prevent secondary failures in belts, bearings, or adjacent components.
When to replace:
• When the original strap is bent, cracked, or corroded
• After alternator or cooling fan service
• If the fan belt shows uneven wear or misalignment
• During engine restoration or reassembly
• If vibration/noise from the cooling fan area indicates movement
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410625120
The product you are viewing cross references to these numbers
- 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)
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
- 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
Fits:
Porsche 911/912 (1965-1969) (911 up Through 68)
Porsche 911T/E/S Carrera RS (1970-73)
Porsche 911/911S / Carrera (1974-1977)
Related reference numbers
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90110601003
The product you are viewing cross references to these numbers
- 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)
Fit:
Porsche 911SC / Turbo (1978-1983) (SC)
Porsche 911SC / Turbo (1978-1983) (TURBO)
Porsche 911 Carrera / Turbo (1984-1986)
Replace your old or worn 11 blade alternator fan with our EPS Performance replacement. A worn fan can cause premature damage to the alternator. On some older cars, this fan is an upgrade which improves cooling and engine temperature. The additional blades allow for increased airflow. Balanced and true, this fan will far outlast the failure prone fans. Made of high strength Aluminium with a Drop Forged Steel hub.
11-Blade Alternator Fan / Impeller (245mm Diameter), 3.25" Diameter Pulley,(also replaces 5 bladed fan) 911 (1980-89)
If your Porsche is fitted with a 226mm Alternator Fan you will need to upgrade to the 245mm fan and also buy a new fan housing Part No. 93010600600/1 , Pully 93010202804 & V belt 99919217650.
Related reference numbers
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93010601200
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Alternator Fan Housing - Alloy
Fits:
Porsche 911 Turbo 1976-83
Please Note: 1978-79 911SC You Will Need To Also Replace The Fan Part No. 93010601200/1
Long discontinued from Porsche we have manufactured an All Aluminium Replacement Alternator Fan Housing that is much more durable then it's predecessor. You can expect a direct fit with no modifications needed.
Related reference numbers
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93010600600
The product you are viewing cross references to these numbers
- 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)
Fit:
Porsche 911 1965-89
Rennline's Billet Fan Shroud is fully CNC machined from two solid blocks of aluminium for a stronger and more stylish look than other aftermarket OEM replacements made from cast aluminium or magnesium.
Dress up your flat 6 with a new Fan Shroud - available in 3 different coloured anodized finishes.
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M57
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 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
This is a damaged unit, offered for parts or refurbishment purposes only. Ideal for restoration specialists, collectors, or workshops looking for components at reduced cost.
NOTE: For spares, repair, or core replacement only – not suitable for direct fitment without repair.
Condition:
This air deflector is brand new and never fitted. It has some transport damage which is repairable.
Please see the gallery of images before purchasing.
Fits:
- Porsche 911 1970-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
Diagram Ref No 13
Related reference numbers
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91110603300
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Fits:
Porsche 911 1975-83
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
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93010632601
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
This aluminium moulded housing replaces the original shroud that encloses the alternator and cooling fan on Porsche 906 and 911 RSR racing engines. It is cast from aluminium moulding, with dimensions and mounting points aligned to the factory reference (225 mm diameter).
Fits:
Porsche 911 RSR / 906
Constructed with durability and accuracy in mind, this replacement fits applications where original fan housings are worn, cracked or missing — particularly on air-cooled Porsche competition engines. It offers a direct-fit solution, restoring proper belt alignment, fan clearance and cooling airflow geometry.
• Porsche reference number: 901.106.103.00R , 90110610300
• Material: Aluminium-moulding
• Weight: 1850g
• Diameter: 225 mm
• Manufactured to original specification
The fan/alternator housing is a critical component: it locates the alternator, supports the cooling fan and defines the airflow path through the air-cooled engine. In motorsport or restored engines it is exposed to extreme heat, vibration and airflow loads. Over time the original housing may become warped, cracked, or suffer corrosion — which can lead to belt misalignment, fan rub, reduced cooling efficiency or even engine damage.
Replace this housing when:
• The existing housing shows cracks, distortion or corrosion
• There is belt misalignment, fan contact or excessive vibration
• You are performing an engine rebuild, conversion or restoration of a 906 / 911 RSR
• Cooling airflow is compromised or the cooling fan is physically contacting the housing
Fitting a new housing restores original alignment, clears fan clearance issues, improves belt life and ensures your Porsche engine’s cooling system functions as designed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110610300
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 914 (1970-1976)
Fits:
Porsche 911 RSR
Porsche 906
Porsche 914 GT
Dimensions:
Diameter: 225mm
Material:
Aluminium
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 914 (1970-1976)

Fits:
Porsche 935
Inlet funnel with cooling fan wheel for the 935 flat, horizontal fan
Material:
Fan Housing - GRP (honey coloured)
Fan Blades - Aluminium
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93510610300R
The product you are viewing cross references to these numbers
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.