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Filler Neck Parts
By OE Match
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- 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>>
- Porsche 996 GT3 RS 2003-04
Fits:
Porsche 986 Boxster 1997-04
Porsche 996 C2 / C4 / C4S 1998-04
Porsche 996 Turbo / GT2
Porsche 996 GT3 2000-05
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610703550
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
Engine Oil Filler Neck Tube
This engine oil filler neck tube is designed for the Porsche
986 Boxster and provides a direct replacement for worn or damaged oil fill
pipes. It connects the oil filler cap to the engine, allowing clean and
controlled filling of engine oil while maintaining a sealed system.
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
Diagram Ref No 19
In the Porsche 986, the oil filler tube runs through the bodywork from the rear luggage compartment to the engine. Due to its length and exposure to heat and vibration, it is a known wear component that can degrade over time.
What This Oil Filler Neck Tube Does
The oil filler neck tube forms the pathway for adding engine oil safely into the engine.
It helps:
• Provide a sealed route from filler cap to engine
• Prevent oil leaks and vapour escape
• Ensure clean and accurate oil filling
• Maintain proper crankcase ventilation
• Support overall engine oil system integrity
A properly functioning filler tube is essential for both maintenance and engine reliability.
Why Oil Filler Neck Tubes Fail
Over time, the original oil filler tube can deteriorate due to heat, age and engine movement.
Common causes include:
Cracking and splitting
Plastic and rubber sections can become brittle and crack.
Oil contamination
Constant exposure to oil vapours can degrade materials.
Heat exposure
Engine bay temperatures accelerate wear and hardening.
Movement and vibration
Engine movement can stress the tube and connections.
Symptoms of a Failing Oil Filler Tube
• Oil smell from the engine bay or cabin
• Visible oil leaks around the filler tube
• Difficulty adding oil
• Engine warning lights related to vacuum leaks
• Rough running due to air leaks in the system
A damaged filler tube can lead to both oil leaks and unmetered air entering the engine.
Why You May Need to Replace This Tube
Fix Oil Leaks
Replacing a cracked tube prevents oil seepage and contamination.
Restore Proper Sealing
Ensures the oil system remains sealed and functions correctly.
Improve Engine Performance
Eliminates vacuum leaks that can affect engine running.
Essential Maintenance for Ageing Vehicles
A common failure point on Porsche 986 models.
Direct Fit Replacement
Designed to match original Porsche specifications for easy installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610725403
The product you are viewing cross references to these numbers
OEMatch filler neck parts for Porsche models provide the connection between the engine or oil reservoir and the filler cap, enabling controlled oil refilling while maintaining the lubrication system seal. This collection covers filler necks, caps, seals and connecting pipes suitable for air-cooled and water-cooled Porsche engines, useful for routine maintenance, engine rebuilds and restoration work.
Understanding OEMatch Filler Neck PartsOEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original filler neck parts.
OE (Original Equipment) refers to parts matching original specifications for the filler neck parts and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM filler neck parts engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
These components form the filler neck assembly and are typically made from heat- and oil-resistant materials, with seals and O-rings that maintain pressure integrity and prevent contamination.
- Restores airtight sealing to prevent oil leaks and vapour loss.
- Supports clean, controlled oil refilling and reduces contamination risk.
- Replaces degraded pipes, seals and caps to maintain system pressure and reliability.
- Heat and vibration cause pipes and hoses to become brittle and crack.
- Seals and O-rings deteriorate from oil exposure and age, allowing vapour leaks.
- Residue and sludge build-up can impede sealing and lead to poor fitment.
Replacing worn filler neck components preserves oil system integrity, prevents leaks that can cause contamination or oil loss, and keeps servicing straightforward. Correct seals and properly formed filler pipes help the crankcase breathe as intended and support consistent engine operation across model years.
Advantages- Parts selected for compatibility with Porsche mounting points and service procedures.
- Materials chosen to resist oil, heat and corrosion for longer service life.
- Suitable for restoration and routine maintenance, covering both classic and modern applications.
