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Your Vehicle
Porsche // 928 (1978-1995) // 928GT 5.0L 1989-91
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- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
The Porsche Headlamp Breather Pipe is a genuine OEM vent tube designed to prevent condensation and moisture build-up inside the headlight housing. Fitted to Porsche 911 (996 models), this pipe allows controlled airflow and pressure equalization, keeping your headlights clear and functioning properly.
Fits LEFT And RIGHT.
Fits:
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
What This Product Does:
The tube is a vent / breather tube for the headlamp housing. It allows moisture, condensation and air to escape from the headlamp enclosure so the lens doesn’t fog up, and prevents vacuum or pressure build-up inside the lamp unit.
Symptoms Of A Faulty / Missing / Damaged Vent Tube:
- Condensation / Fogging inside the headlamp lens, especially after weather changes or car wash.
- Water accumulation inside the headlight housing (visible water or dripping) leading to corrosion, rust, or water spots.
- Cloudiness or reduced light output due to moisture affecting reflectors or lenses.
- Burned / corroded connectors or bulb sockets due to water contact.
- The headlamp may feel humid inside, smell of damp plastic, or show signs of mildew / moisture staining.
Why Replacement Matters:
- Preserves headlamp clarity & performance: a clean, dry reflector & lens means correct beam pattern & brightness. Moisture or fog diminish performance and safety.
- Protects electrical components inside the lamp assembly: bulbs, aim adjusters, connectors are especially vulnerable to water damage.
- Prevents damage to headlamp internals: moisture can cause corrosion, oxidation, potentially degrading internal seals, screws, and mounting surfaces.
- Maintains correct optical alignment & beam pattern: trapped moisture can distort or when dried unevenly, affect clarity and aim.
- Low cost preventive part: replacing a small tube is cheap relative to replacing a full headlamp unit due to water damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99663112000
The product you are viewing cross references to these numbers
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
• relay location/code no.: XXIII
• relay location/code no.: XXIV
Fits:
Porsche 928 1991-95
This product supersedes Porsche's old part numbers:
- 92861810704
* Please check and match the part number of your relay in your car before ordering.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92861810764
The product you are viewing cross references to these numbers
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 927 1978-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 27
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92875006702
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Headlamp Motor Protective Cap Upper – 924 / 944 / 928
High-quality upper headlamp motor protective cap
designed for Porsche 924, 944, and 928 models.
Fits:
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Diagram ref no 28
This cap fits over the headlamp motor assembly, providing essential protection against dirt, moisture, and debris within the engine bay. It helps preserve the functionality and longevity of the pop-up headlight mechanism by shielding sensitive components from environmental exposure.
Manufactured to OEM specifications, this protective cap ensures correct fitment and durability, making it ideal for restoration, repair, or replacement of damaged or missing covers.
Key Features
• Upper protective cap for headlamp motor
• Suitable for Porsche 924, 944, and 928
• Designed for pop-up headlight systems
• Protects motor assembly from dirt and moisture
• OEM-style fit and specification
• Durable construction for long-term reliability
Function and Purpose
This protective cap plays an important role in the headlight system.
It helps to:
• Cover and protect the headlamp motor assembly
• Prevent dirt, dust, and moisture ingress
• Reduce risk of corrosion or mechanical wear
• Maintain reliable operation of pop-up headlights
• Extend the lifespan of motor components
Why Replace Protective Caps
Over time, protective covers can become damaged or degraded.
Common issues include:
• Cracked or brittle plastic
• Missing covers exposing components
• Dirt and moisture contamination
• Reduced protection of moving parts
Replacing worn caps ensures proper protection and system longevity.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477941387
The product you are viewing cross references to these numbers