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Bolt - M6x12 - for Engine Tinware (Fan Shroud & Cover). Porsche 911 / 964 / 993 Carrera & Turbo 1978-1998 - 99907503903
99907503903/1
Vehicle Group
- 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 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Information
M6 x 12 bolt with washer for engine cover and fan shroud.
Fits:
Porsche 911 SC 3.0L 1978-83
Porsche 911 3.2L 1984-89
Porsche 911 Turbo (930) 3.3L 1978-89
Porsche 964 Carrera 3.6L1989-94*
Porsche 964 Turbo 3.3L 1991-92
Porsche 964 Turbo 3.6L 1993-95
Porsche 993 Carrera 3.6L 1994-98*
Porsche 993 Turbo 3.6L 1995-98*
Porsche 959 2.8L 1987-88
*NOTE: On 964 Carrera and all 993 models, this bolt is used only for the engine cover—not for the fan shroud.
Diagram Ref. 10 | Fan Shroud
Diagram Ref. 11 | Engine Cover
- The diagrams shown are from a 1989 911 3.2L. Placement and quantities will vary slightly by model.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99907503903
The product you are viewing cross references to these numbers
Fits:
Porsche 911 SC 3.0L 1978-83
Porsche 911 3.2L 1984-89
Porsche 911 Turbo (930) 3.3L 1978-89
Porsche 964 Carrera 3.6L1989-94*
Porsche 964 Turbo 3.3L 1991-92
Porsche 964 Turbo 3.6L 1993-95
Porsche 993 Carrera 3.6L 1994-98*
Porsche 993 Turbo 3.6L 1995-98*
Porsche 959 2.8L 1987-88
*NOTE: On 964 Carrera and all 993 models, this bolt is used only for the engine cover—not for the fan shroud.
Diagram Ref. 10 | Fan Shroud
Diagram Ref. 11 | Engine Cover
- The diagrams shown are from a 1989 911 3.2L. Placement and quantities will vary slightly by model.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99907503903
99907503902
99907503901
9990750390C
99914300408
99914300401
The product you are viewing cross references to these numbers
Price: £1.95
In stock
Related products
Engine fan housing air outlet shrouds, set of 2. Porsche 911 / 914-6 / 930 / 964
Code: 93016032102/1
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 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 914 (1970-1976)
Information
Engine fan housing air outlet shrouds.
This set includes both left and right air outlet shrouds, offering a complete replacement when one or both originals have deteriorated due to age, cracking, distortion, or previous repair.
SET OF 2
Fits:
Porsche 911 F model T/E/S 1970-73
Porsche 914/6
Porsche 930 turbo 3.0/3.3 ('75-'89)
Porsche 911 2.7 S/SC ('74-'77)
Porsche 964 turbo (965)
This is the early sheet metal variant
This is a replacement set for Porsche parts numbers:
• Left side: 91110632700
• Right side: 90110632102 , 90110603101, 90110602150, 93016032102.
Set of two OE Match engine fan housing air outlet shrouds, designed as direct-fit replacements for the original Porsche fan outlet ducting on air-cooled engine models. These shrouds direct cooling air from the engine fan toward the cylinder heads and accessories, ensuring optimum engine temperature control and airflow management.
The fan housing air outlet shrouds channel warm airflow from the engine cooling fan, directing it efficiently around the engine’s critical hot spots. By shaping and focusing the fan’s output, these shrouds help maintain even and effective cooling, which is vital for controlling cylinder head and oil temperatures, especially under spirited driving conditions.
On air-cooled Porsche engines, effective airflow is critical to maintaining acceptable operating temperatures. Over time, original fan shrouds and outlets can crack, warp, or deteriorate, leading to air leaks, reduced cooling performance, and elevated cylinder head/oil temperatures. These conditions increase wear on internal components and can lead to performance losses or mechanical issues. Replacing damaged or missing shrouds with an OE Match set restores proper airflow paths, ensuring the fan’s air is directed where it’s needed most, and helps preserve engine health, reliability, and coolant-free performance.
When to replace:
• Original shrouds are cracked, warped, or missing
• During engine rebuild or cooling system service
• When upgrading other cooling components (e.g., fans, housings)
• If overheating or uneven temperature issues are detected
• Preventive replacement on high-mile engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93016032102
The product you are viewing cross references to these numbers
This set includes both left and right air outlet shrouds, offering a complete replacement when one or both originals have deteriorated due to age, cracking, distortion, or previous repair.
SET OF 2
Fits:
Porsche 911 F model T/E/S 1970-73
Porsche 914/6
Porsche 930 turbo 3.0/3.3 ('75-'89)
Porsche 911 2.7 S/SC ('74-'77)
Porsche 964 turbo (965)
This is the early sheet metal variant
This is a replacement set for Porsche parts numbers:
• Left side: 91110632700
• Right side: 90110632102 , 90110603101, 90110602150, 93016032102.
Set of two OE Match engine fan housing air outlet shrouds, designed as direct-fit replacements for the original Porsche fan outlet ducting on air-cooled engine models. These shrouds direct cooling air from the engine fan toward the cylinder heads and accessories, ensuring optimum engine temperature control and airflow management.
The fan housing air outlet shrouds channel warm airflow from the engine cooling fan, directing it efficiently around the engine’s critical hot spots. By shaping and focusing the fan’s output, these shrouds help maintain even and effective cooling, which is vital for controlling cylinder head and oil temperatures, especially under spirited driving conditions.
On air-cooled Porsche engines, effective airflow is critical to maintaining acceptable operating temperatures. Over time, original fan shrouds and outlets can crack, warp, or deteriorate, leading to air leaks, reduced cooling performance, and elevated cylinder head/oil temperatures. These conditions increase wear on internal components and can lead to performance losses or mechanical issues. Replacing damaged or missing shrouds with an OE Match set restores proper airflow paths, ensuring the fan’s air is directed where it’s needed most, and helps preserve engine health, reliability, and coolant-free performance.
When to replace:
• Original shrouds are cracked, warped, or missing
• During engine rebuild or cooling system service
• When upgrading other cooling components (e.g., fans, housings)
• If overheating or uneven temperature issues are detected
• Preventive replacement on high-mile engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93016032102
90110632102
90110603101
90110602150
93016032102
91110632100
91110632700
93010602150
93010632101
93010632102
The product you are viewing cross references to these numbers
Price: £129.00
In stock
Vehicle Group
- Porsche 914 (1970-1976)
Information
This OE Match alternator inspection cover is a reproduction component for Porsche 914 models built from 1970 to 1976. It closes the alternator access opening in the fan housing while retaining convenient access for adjustment and maintenance.
Fits
- 914 (1970–1976)
Diagram Ref No 23
What This Product Does
The cover fits over the inspection aperture used to reach the alternator upper fixing. Closing this opening helps the engine tinware manage cooling air as intended and limits the entry of dirt or debris around the alternator area.
Functions
- Closes the alternator inspection opening in the fan housing
- Permits access to the alternator upper fixing when removed
- Helps maintain the intended cooling-air path
- Reduces exposure of the access opening to dirt and debris
- Replaces a missing, cracked or damaged original cover
Technical Details
- Product type: alternator inspection cover
- Construction: plastic reproduction component
- Installation location: fan housing access opening
- Quantity required: one per vehicle
Symptoms of Fault
- Inspection opening left exposed because the original cover is missing
- Cracks, distortion or damaged retaining edges
- Cover no longer seating securely in the fan housing
- Increased dirt or debris around the alternator access area
- Gaps in the engine tinware that may disturb cooling airflow
- Rattling caused by a loose or incorrectly seated cover
Why Replacement Matters
Engine tinware on an air-cooled Porsche guides cooling air around the engine. Renewing a missing or damaged inspection cover closes an unnecessary gap while preserving access for alternator servicing. This OE Match replacement is suitable for maintenance, restoration or engine rebuild work where the original component has deteriorated or been lost.
FAQs
- What is this cover used for?
It closes the fan-housing opening that provides access to the alternator upper fixing. - Is this an alternator component?
It is an inspection cover fitted to the surrounding fan housing rather than an internal alternator part. - Why should a missing cover be replaced?
An uncovered aperture can interfere with the intended airflow through the engine tinware and allow additional contamination into the area. - When is replacement recommended?
Renew the cover if it is absent, cracked, distorted, loose or unable to remain seated correctly.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
021119295
021119295
The product you are viewing cross references to these numbers
Price: £11.95
In stock
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 914 (1970-1976)
Information
Engine baffle kit. 12 parts
Fits:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BAFFLEKIT911
The product you are viewing cross references to these numbers
Fits:
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 914/6 (1970-1976)
Click 'Zoom in' for large parts diagram.
Diagram ref no 18, 19, 20 and 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BAFFLEKIT911
90110603501
90110604100
90110603901
93010622800
901.106.035.01
901.106.041.00
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
4 x Engine baffle plate centre. Porsche 911 / 914 90110603501 (90110603501/1)
Unit Price: £49.50
InStock
2 x Engine baffle plate front right / rear left. Porsche 911 / 914 90110603901 (90110603901/1)
Unit Price: £38.75
InStock
2 x Engine baffle plate front left / rear right. Porsche 911 / 914 90110604100 (90110604100/1)
Unit Price: £49.50
InStock
4 x Engine Baffle Leaf Spring. Porsche 911 65-89 / 964 / 914 (93010622800)
Unit Price: £7.73
InStock
Price: £405.42
In stock
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 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
Information
Engine baffle plate centre - 4 required per car.
Sold each
Fits:
Porsche 911 F (1965 - 1973)
Porsche 911 G (1974 - 1977)
Porsche 911 Turbo (1975 - 1977)
Porsche 914/6 (1970 - 1972)
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110603501
The product you are viewing cross references to these numbers
Sold each
Fits:
Porsche 911 F (1965 - 1973)
Porsche 911 G (1974 - 1977)
Porsche 911 Turbo (1975 - 1977)
Porsche 914/6 (1970 - 1972)
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110603501
90110603501
90110604100
90110603901
901.106.035.01
901.106.041.00
901.106.039.01
The product you are viewing cross references to these numbers
Price: £49.50
In stock